Construction Calculators186 calculators
Getting a construction project off the ground calls for solid calculations and reliable measurements. From figuring out how much concrete to order, to estimating materials for a remodel or checking the right HVAC size, clear numbers make the difference. These calculators help contractors, architects, DIYers, and students with everything from foundation calculations to everyday building tasks. The goal is to remove guesswork and make project planning smoother, whether it's for a home renovation, classroom project, or a large-scale build.
Concrete, Stone & Masonry
Block Wall Cost Calculator
Estimate block wall cost for concrete CMU, cinder block, decorative split-face, and retaining wall blocks. Figures blocks, mortar, rebar, grout, footing, and mason labor.
Cement Calculator
Calculate how many bags of cement you need for concrete mixing. Choose your mix ratio and project volume for accurate estimates.
Cinder Block Wall Cost Calculator
Estimate total cinder block wall cost per square foot and overall. Covers blocks, mortar, rebar, grout, and labor for 8-inch, 12-inch, and half-block CMU walls.
Concrete Block Calculator
Calculate the number of concrete blocks (CMU) needed for a wall. Enter dimensions and block size to get block count, mortar bags, and cost estimate.
Concrete Calculator
Calculate how much concrete you need for a slab. Enter length, width, and depth to get cubic yards and number of bags.
Concrete Column Calculator
Calculate concrete volume for round or square columns. Get cubic yards, bag counts, and rebar estimation for structural columns.
Concrete Slab Calculator
Calculate concrete for a rectangular slab with rebar grid estimation. Get cubic yards, 60-lb and 80-lb bag counts, and reinforcement details.
Concrete Stairs Calculator
Calculate how much concrete you need for steps and stairs. Enter step dimensions to get volume in cubic feet, cubic yards, bags needed, and estimated cost.
Concrete Weight Calculator
Calculate the weight of concrete slabs, columns, and footings. Enter dimensions to get weight in pounds and kilograms.
Footing Size Calculator
Calculate required footing dimensions based on column load and soil bearing capacity. Shows width, depth, and concrete volume for spread footings.
Grout Calculator
Calculate grout needed for tile installation based on tile size, joint width, and coverage area. Get results in pounds and number of bags.
Mortar Calculator
Calculate mortar bags needed for brick and block work. Enter wall area and block type to get mortar quantity, block count, and cost estimate.
Ready Mix Calculator
Ready mix concrete calculator for slabs, footings, and columns. Calculates cubic yards, bagged concrete equivalents, and ready mix truck delivery cost.
Rebar Calculator
Calculate rebar needed for concrete slabs and footings. Enter dimensions and spacing to get bar count, total length, and weight.
Retaining Wall Calculator
Calculate retaining wall materials including blocks, cap stones, gravel backfill, and adhesive. Enter wall dimensions for a complete estimate.
Sidewalk Cost Calculator
Calculate total cost to install a sidewalk from length, width, material, thickness, and region. Covers concrete, stamped concrete, brick pavers, stone pavers, and asphalt sidewalks with material and labor breakdowns.
Sonotube Calculator
Calculate concrete needed for Sonotube column forms. Enter tube diameter, height, and number of columns to get volume in cubic feet, cubic yards, and bags needed.
Electrical
Box Fill Calculator
Calculate NEC electrical box fill requirements. Enter conductor counts by wire gauge, devices, clamps, and grounds to determine minimum box size in cubic inches.
Conduit Fill Calculator
Calculate NEC conduit fill percentage. Select conduit type and size, enter wire gauge and count, and check if your fill meets code.
Electrical Load Calculator
Calculate total electrical load for a building or circuit. Size breakers and panels using NEC standards with the 80% continuous load rule.
Sag Ratio Calculator
Calculate cable or wire sag based on span length, unit weight, and horizontal tension. Get sag distance, sag ratio, and actual cable length.
Wire Gauge Calculator
Select the correct electrical wire gauge for your circuit. Enter amps, voltage, and distance to get recommended AWG, voltage drop, and conduit size.
Excavation
Fencing
Baluster Calculator
Calculate the number of balusters and exact spacing for deck railings, staircases, and balconies. Meets building code requirements for 4-inch max gap.
Fence Cost Calculator
Calculate the cost of various fence types. Estimate material, labor, and total costs.
Fence Picket Calculator
Calculate the number of pickets, posts, and rails needed for a fence. Enter fence length, picket width, and spacing for a complete materials list.
Fence Post Depth Calculator
Calculate fence post hole depth, diameter, and concrete needed per hole. Accounts for fence height, post size, soil type, and wind exposure.
Fence Repair Cost Calculator
Fence repair cost calculator that estimates labor and material for wood, chain link, and vinyl fence repairs. Covers broken posts, panels, pickets, and gates.
Fence Staining Cost Calculator
Estimate fence staining cost by linear feet, fence height, stain quality, and DIY vs pro labor. Includes optional power washing prep and gives cost per linear foot.
Linear Feet Calculator for Fence
Linear feet calculator for fence projects. Enter yard dimensions or each side of the perimeter to get total fence linear foot, post count, rail count, picket count, and material cost estimate.
Flooring
Board and Batten Calculator
Calculate materials for board and batten siding or wainscoting. Get the number of boards, battens, total linear feet, and coverage area.
Deck Board Calculator
Calculate how many deck boards you need. Enter deck dimensions, board size, and spacing to get board count, screws, and cost estimate.
Deck Joist Calculator
Calculate deck joist count, maximum span, and materials using IRC R507.6 span tables. Enter deck size, joist size, species, and spacing for a complete framing plan.
Flooring Calculator
Calculate how much flooring you need. Enter room dimensions and flooring type to get square footage, boxes, and cost estimates.
LVP Calculator
LVP calculator figures how many planks and boxes of luxury vinyl plank flooring to buy for your room, plus underlayment and transition strips. Pick plank size, layout, and tier.
LVP Installation Cost Calculator
Calculate LVP installation cost per square foot by material tier, installer type (Home Depot, Lowe's, independent), and room conditions. Includes LVP installation cost per square foot, underlayment, and subfloor prep.
Shiplap Calculator
Calculate how many shiplap boards you need for wall covering. Enter wall dimensions, board width, and overlap to get board count, linear footage, and waste allowance.
Tile Calculator
Calculate how many tiles you need for a room. Enter room area, tile size, and wastage percentage.
Wainscoting Calculator
Calculate materials for wainscoting including panels, chair rail, and base cap. Supports beadboard, raised panel, and flat panel styles.
Home & Garden
Acres Per Hour Calculator
Calculate how many acres per hour you can mow, spray, or work based on equipment width, speed, and field efficiency.
Carpet Calculator
Calculate how much carpet you need for a room including square footage, square yards, and estimated rolls.
Compost Calculator
Calculate how much compost you need for gardens and lawns. Get volume in cubic yards, weight in tons, and bags needed based on area and depth.
Fertilizer Calculator
Calculate the right amount of fertilizer for your lawn or garden based on N-P-K ratio and area.
Grass Seed Calculator
Calculate how many pounds of grass seed you need for new lawns or overseeding. Rates vary by grass type and whether you are starting from scratch or filling in.
Mulch Calculator
Calculate how much mulch you need in cubic yards and bags. Enter bed dimensions and desired depth for accurate coverage estimates.
Paver Calculator
Calculate how many pavers you need for patios, walkways, and driveways. Enter area and paver dimensions to get count and material estimates.
Paver Sand Calculator
Calculate how much sand you need under and between pavers. Get bedding sand and joint sand quantities in tons and cubic yards.
Pergola Calculator
Calculate materials for a pergola build. Enter dimensions and spacing to get post, beam, rafter, and cross piece counts with total board feet.
Plant Spacing Calculator
Calculate how many plants you need for a garden bed or landscape area. Supports grid and triangular (offset) spacing patterns.
Potting Soil Calculator
Calculate how much potting soil you need for pots, planters, and raised beds based on container dimensions.
Sod Calculator
Calculate how much sod you need for your lawn. Get square footage, number of rolls, pallets needed, and cost estimates with a built-in 5% waste factor.
Soil Calculator
Calculate how much soil or topsoil you need for garden beds, raised planters, and landscaping. Get volume in cubic yards, bags needed, and weight estimates.
Topsoil Calculator
Calculate how much topsoil you need in cubic yards and tons. Enter area dimensions and depth to get accurate delivery estimates.
Tree Value Calculator
Estimate tree value using the trunk formula method based on species, trunk diameter, condition, and location.
Wallpaper Calculator
Calculate how many rolls of wallpaper you need based on room dimensions, doors, and windows.
HVAC
AC BTU Calculator
Calculate the right AC or heating BTU size for your room. Factors in area, ceiling height, insulation quality, climate zone, and sun exposure for accurate sizing.
Air Changes Per Hour Calculator
Calculate ventilation rate and air changes per hour (ACH) for any room. Enter room dimensions and airflow CFM to determine ACH, or enter a target ACH to find the required CFM.
Baseboard Heater Calculator
Size an electric baseboard heater by room square footage, insulation quality, and climate. Get required watts, BTU, linear feet of baseboard, and monthly operating cost.
CFM Airflow Calculator
Calculate required CFM (cubic feet per minute) airflow for HVAC systems based on room size and air changes per hour. Includes recommended duct size.
Furnace Size Calculator
Calculate the furnace BTU capacity needed for your home based on square footage, climate zone, insulation quality, and ceiling height.
Heat Loss Calculator
Estimate building heat loss through walls, windows, and ceiling. Calculate BTU/hr loss and required furnace size based on U-values and temperature difference.
Heat Pump Sizing Calculator
Calculate the right heat pump BTU capacity for your home based on square footage, climate zone, insulation, and ceiling height. Get tonnage and unit recommendations.
Insulation Calculator
Calculate how much insulation you need. Enter area dimensions and R-value to get batts, rolls, or blown-in insulation quantities.
Mini Split Calculator
Size a ductless mini-split for a single room or zone using ACCA Manual J simplified BTU load. Recommends 9000, 12000, 18000, 24000, or 36000 BTU mini split units.
Materials
Aggregate Calculator
Calculate aggregate volume and weight for construction fill, road base, and drainage. Enter area dimensions and depth to get cubic yards and tons.
Asphalt Calculator
Calculate how much asphalt you need in tons for driveways, parking lots, and roads. Enter dimensions and thickness for accurate estimates.
Beam Load Calculator
Calculate beam load capacity for dimensional lumber, LVL, and steel beams. Enter beam type, span, and load type to get maximum loads, deflection, and recommended uses.
Bearing Load Calculator
Calculate bearing load capacity and L10 life expectancy from dynamic load rating, applied load, and speed. Covers radial ball and roller bearings.
Brick Calculator
Calculate how many bricks you need for walls, patios, and walkways. Enter dimensions and bond pattern to get brick count and mortar estimate.
Crushed Stone Calculator
Calculate tons and cubic yards of crushed stone needed for driveways, drainage, and base layers. Enter area and depth for accurate estimates.
Drywall Calculator
Calculate how many drywall sheets you need. Enter room dimensions to get sheet count, joint compound, tape, and screws needed.
Fire Glass Calculator
Calculate how much fire glass you need for a fire pit, fire table, or gas fireplace. Enter shape and dimensions to get pounds of fire glass and estimated cost.
Gabion Calculator
Calculate stone fill needed for gabion walls and baskets. Enter dimensions to get volume, weight, and number of baskets required.
Glass Weight Calculator
Calculate the weight of glass panels from dimensions and thickness. Supports standard, tempered, and laminated glass for windows, doors, and partitions.
Gravel Calculator
Calculate how much gravel you need in tons and cubic yards. Enter area dimensions and depth for accurate material estimates.
I-Beam Weight Calculator
Calculate I-Beam weight per foot, per meter, and total weight from depth, flange width, and web thickness. Matches AISC W-shape and MS I-Beam weight chart values.
Limestone Calculator
Calculate how much limestone you need by volume and weight. Enter area and depth for driveways, base layers, and landscaping.
Log Weight Calculator
Estimate the weight of logs from diameter, length, and wood species. Useful for timber hauling, firewood, and milling projects.
Lp Smartside Cost Calculator
Lp Smartside cost calculator for lap, panel, and trim. Enter wall square feet and select lap or panel, prefinished or primed. Includes materials, accessories, and pro install cost.
Lumber Calculator
Calculate how many boards you need for your project. Enter dimensions and spacing to get board count, total linear feet, and cost estimate.
Metal Weight Calculator
Calculate the weight of metal plates, round bars, and tubes. Supports steel, aluminum, copper, brass, titanium, and stainless steel with precise density values.
Mobile Home Calculator
Mobile home calculator for monthly payment, total interest, and total cost. Works for chattel loans, FHA mobile home mortgages, and conventional financing through lenders like 21st Mortgage, Triad, and Cascade.
Plywood Sheets Calculator
Calculate how many plywood sheets you need. Enter area dimensions to get sheet count for subfloor, sheathing, or other projects.
Post Hole / Footing Calculator
Calculate concrete needed for post holes and footings. Enter hole diameter, depth, and count to get cubic yards and bags of concrete.
Paint
Caulk Calculator
Calculate how many caulk tubes you need for windows, doors, and trim joints. Enter joint dimensions and total length for an accurate materials estimate.
Deck Stain Calculator
Calculate how much deck stain to buy based on deck area, coverage rate, and number of coats. Get gallons needed and estimated cost.
Epoxy Garage Floor Cost Calculator
Calculate epoxy garage floor cost by square footage, coating type, and DIY vs professional install. Returns cost per square foot and total project cost.
Epoxy Resin Calculator
Calculate how much epoxy resin you need for tables, tumblers, casting, and flood coats. Supports rectangular and round projects with volume in gallons, liters, millilitres, grams, and ounces.
Outdoor Paint Calculator
Calculate outdoor paint needed for your home exterior. Enter wall area, siding texture, coats, and paint grade to get gallons and estimated cost.
Paint Calculator Cost
Calculate total paint cost including paint, supplies, and labor. Covers interior paint calculator cost and exterior paint calculator cost scenarios with per-gallon, per-coat, and per-square-foot pricing.
Paint Calculator for Ceiling
Ceiling paint calculator that estimates gallons needed and cost for flat, popcorn, or textured ceilings. Enter room dimensions, coats, and paint grade.
Paint Calculator for Doors
Paint calculator for doors splits your project into interior, exterior, and closet doors. Returns gallons needed, quarts alternative, and total paint cost.
Paint Calculator for Garage
Paint calculator for garage walls and ceiling. Enter garage size or custom dimensions, number of coats, and paint quality to get gallons needed and total garage paint cost.
Paint Calculator for Walls
Paint calculator for walls that lets you enter up to four individual walls plus an accent wall. Subtracts doors and windows and returns gallons, liters, and cost.
Paint Coverage Calculator
Calculate how much paint you need. Enter wall area, number of coats, and coverage rate to find gallons needed.
Paint Trim Calculator
Calculate how much trim paint you need for baseboards, crown molding, door and window casings. Exterior paint trim calculator option for fascia and soffits with coverage rate, coats, and gallons.
Pool Paint Calculator
Pool paint calculator for rectangular and round pools. Supports epoxy pool paint calculator mode, rubber-based, and acrylic paint with floor and wall area, gallons, and cost.
Plumbing
Drain Field Calculator
Drain field calculator (septic drain field size calculator) sizes the absorption area for your septic system by bedrooms, soil type, and perc rate. Works as a drain field size for 2 bedroom house sizer and up.
Drainage Pipe Calculator
Calculate drainage pipe size and slope for stormwater management. Uses simplified Manning's equation for flow capacity based on area, rainfall rate, and pipe diameter.
Duct Calculator
Size HVAC supply and return ducts from CFM requirement. Calculates round duct diameter, rectangular size, velocity, and pressure drop for sheet metal or flex duct.
Duct Weight Calculator
Calculate sheet metal duct weight per foot and total weight for galvanized, aluminum, and stainless ducts. Supports round and rectangular duct by gauge per SMACNA standards.
French Drain Calculator
Calculate materials for a French drain: gravel, perforated pipe, and landscape fabric. Enter trench dimensions to get quantities and estimated cost.
Leach Field Calculator
Calculate leach field size for a septic system by bedroom count, percolation rate, and soil type. Returns required absorption area and trench length.
Pipe Volume Calculator
Calculate water volume inside a pipe from diameter and length. Get results in gallons, liters, cubic feet, and water weight in pounds.
Pipe Weight Calculator
Calculate pipe weight per foot and total weight. Select pipe material, nominal size, and schedule to get weight, wall thickness, and inner diameter.
Pump Calculator
Pump calculator for flow rate, total dynamic head, and horsepower. Figures hydraulic HP, brake HP, and motor HP using the Hydraulic Institute HP = Q x H x SG / 3960 formula.
Rolling Offset Calculator
Calculate pipe rolling offset travel, run, and true offset for plumbing and pipefitting. Supports 22.5, 45, and 60 degree fittings.
Septic Tank Size Calculator
Calculate minimum septic tank size by number of bedrooms and water usage. Shows tank dimensions, drain field size, and pumping schedule.
Size Tankless Water Heater Calculator
Size a tankless water heater by household size, simultaneous fixtures, and climate zone. Returns required GPM, BTU, and gas vs electric tankless recommendation.
Vapor Barrier Calculator
Calculate vapor barrier square footage needed for crawl spaces, basement walls, and concrete floors. Accounts for overlaps and waste.
Water Heater Size Calculator
Size a tank or tankless water heater for your household. Calculates peak hour demand in gallons, recommended tank size (40/50/75 gallon), and tankless GPM requirement.
Water Softener Size Calculator
Water softener size calculator using WQA peak grain capacity method. Enter people, hardness, and iron to get the right water softener size for a family of 2, 4, 5, or 6 plus tankless flow rate in GPM.
Well Pump Size Calculator
Size a submersible well pump by bedroom count, well depth, pipe length, and desired pressure. Returns GPM demand, total dynamic head, and horsepower recommendation.
Pools, Ponds & Tanks
Farm Pond Cost Calculator
Farm pond cost calculator estimates total build cost from pond size, depth, soil type, and liner choice. Covers excavation, liner, overflow pipe, permits, and spillway.
Pond Gallon Calculator
Pond gallon calculator for rectangular, round, and irregular ponds. Find the gallons in your pond from length, width, and average depth in seconds.
Pond Liner Calculator
Calculate the exact pond liner size you need from pond length, width, depth, and overlap. Get liner dimensions, total area, and the nearest standard sheet size.
Pond Size Calculator
Calculate pond size in gallons and acre-feet for rectangular, round, and irregular ponds. Get surface area, fish stocking recommendation, and liner size.
Pool Chemical Calculator
Calculate how much chlorine, pH adjuster, alkalinity increaser, and cyanuric acid to add to your pool. Enter pool volume and current readings to get precise dosing in ounces and pounds.
Pool Chemical Calculator App
Free pool chemical calculator app that runs in any mobile browser. Dose chlorine, pH, alkalinity, and cyanuric acid from your phone without installing anything.
Pool Filter Size Calculator
Calculate the right pool filter size in square feet (cartridge/DE) or tank diameter (sand) from pool volume and turnover time. Covers Hayward, Pentair, and generic sizing.
Pool Heater Calculator
Pool heater size calculator for gas, electric, and heat pump units. Enter pool size and target temperature to get the right BTU rating, plus a pool heater BTU chart.
Pool Pump Size Calculator
Calculate the right pool pump size in GPM and HP. Enter pool volume, turnover time, and plumbing details to find the minimum flow rate for proper filtration.
Pool Size Calculator
Calculate pool size in gallons for rectangular, round, oval, and kidney-shaped pools. Get volume, surface area, and the minimum pump GPM for a full 6-hour turnover.
Pool Volume Calculator
Calculate the water volume of your swimming pool in gallons and liters from dimensions and shape.
Swimming Pool Calculator
Calculate pool volume in gallons and estimate chemical needs for chlorine and pH adjustment. Supports rectangular, oval, and circular pool shapes.
Tank Volume Calculator
Calculate the volume of cylindrical and rectangular tanks in gallons and liters. Includes fill time estimate at common flow rates.
Project Costs
Commercial Construction Cost Calculator
Estimate commercial construction cost per square foot by building type, quality tier, and ZIP code region. Covers office, retail, warehouse, restaurant, medical, and hotel construction.
Construction Cost Calculator
Construction cost calculator for new home builds. Estimates total construction cost by square footage, build quality, and regional cost level. Includes house construction cost calculator and residential construction cost per square foot by zip code calculator features.
Garage Construction Cost Calculator
Garage construction cost calculator for detached and attached garages. Enter garage size, number of cars, finish level, and region for material, labor, and total build cost.
Interior Demolition Cost Calculator
Estimate interior demolition cost by square footage, demolition scope, hauling, and region. Covers residential gut renovations and interior commercial demolition cost projects.
Master Suite Addition Cost
Estimate master suite addition cost by square footage, quality tier, and bathroom level. Covers 400 sq ft, 20x20, and 600 sq ft master suite addition cost ranges.
Second Story Addition Cost Calculator
Estimate the cost to add a second story to your home. Covers full and partial second story addition cost by square footage, quality tier, and region.
Whole House Renovation Cost Calculator
Estimate whole house renovation cost by square footage, scope of work, and region. Breaks down cosmetic, mid-range, full-gut, and luxury renovation costs.
Roofing
Attic Truss Calculator
Calculate attic truss dimensions for a roof with a usable living space. Enter span, roof pitch, and knee wall height to get rafter length, usable room width, headroom, and lumber estimate.
Attic Ventilation Calculator
Calculate attic ventilation requirements using the 1/150 and 1/300 IRC rules. Get net free area needed plus balanced intake and exhaust vent square inches.
Gutter Calculator
Calculate gutter materials needed including linear feet, downspouts, hangers, and end caps. Enter roof dimensions for a complete estimate.
Header Size Calculator
Determine the recommended header size for door and window openings. Based on span width and whether the wall is load-bearing or non-bearing.
Joist Span Calculator
Calculate maximum joist span for floors and ceilings. Based on lumber size, spacing, wood species, and grade using standard residential span tables.
Mono Truss Calculator
Mono truss calculator for shed roofs and lean-tos. Enter span, pitch, and building length to get rise, top chord length, truss count, and engineered truss cost.
Rafter Calculator
Plan a complete rafter takeoff. Calculates rafter count, total lumber length, board feet, cut angles, and applies a 10% waste factor for ordering roofing lumber.
Rafter Length Calculator
Calculate rafter length for roof framing from building span, roof pitch, and overhang. Get rafter length, ridge height, roof area, and cut angle.
Ridge Vent Calculator
Calculate how much ridge vent you need based on attic floor area and IRC R806. Returns required net free area, linear feet of ridge vent, and matching soffit intake.
Roof Area Calculator
Calculate actual roof area from building footprint and roof pitch. Includes overhang adjustment and roofing material estimates in squares.
Roof Coating Cost Calculator
Roof coating cost calculator for flat and metal roofs. Estimate elastomeric, silicone, polyurethane, and aluminum coatings by sq ft with material, labor, and prep.
Roof Drainage Calculator
Size a roof drainage system from roof area and rainfall intensity. Returns design flow rate (GPM), gutter size, downspout size, and recommended downspout count for K-style or half-round gutters.
Roof Framing Calculator
Calculate roof framing materials for a gable or shed roof: rafter length, ridge board, rafter count, and linear feet of lumber needed.
Roof Length Calculator
Calculate roof slope length, rafter length, and total roof area from building span, roof pitch, and overhang. Replaces the printed roof rafter length table with instant numbers.
Roof Pitch Calculator
Calculate roof pitch ratio, angle in degrees, slope percentage, and rafter length per foot of run from rise and run measurements.
Roof Ventilation Calculator
Calculate attic ventilation requirements per IRC R806. Enter attic floor area to get required net free area, balanced intake and exhaust, and the number of ridge vent, soffit vent, and roof louver units needed.
Roofing Calculator
Calculate how many shingles, squares, and bundles you need for a roof. Enter roof dimensions and pitch to get accurate material estimates.
Scissor Truss Calculator
Calculate scissor truss dimensions for a cathedral ceiling. Enter span, top chord pitch, and bottom chord pitch to get ceiling height, peak height, rafter and bottom chord lengths, and lumber.
Snow Load Calculator
Calculate structural snow load on a roof per ASCE 7 standards. Enter ground snow load, roof type, pitch, exposure, and importance factor to get roof snow load in PSF.
Truss Calculator
Free truss calculator for roof truss design. Get truss span, height, rafter length, member count, cost estimate, and truss length. Supports king post, queen post, and fink (W-truss) types for simple roof truss design.
Tools & Machinery
Bolt Circle Calculator
Calculate bolt positions on a circular pattern. Enter bolt circle diameter and number of holes to get X/Y coordinates and spacing.
Bolt Torque Calculator
Look up recommended torque specifications for bolts and fasteners. Select bolt diameter, grade, and lubrication to get dry and lubricated torque values and clamp force.
Chip Load Calculator
Chip load calculator for CNC end mills. Compute chip load per tooth (IPT or mm/tooth) from RPM, feed rate, and flute count. Works for milling aluminum, steel, stainless, titanium, and plastic in imperial or metric.
CNC Feeds and Speeds Calculator
CNC feeds and speeds calculator for mills and routers. Returns spindle RPM, feed rate (IPM and mm/min), chip load, and SFM for metals, hardwood, MDF, plywood, and plastics.
Cutting Speed Calculator Lathe
Cutting speed calculator lathe turning. Enter workpiece diameter, material, tool material, and cut type (roughing or finishing) to get spindle RPM, SFM, and recommended feed per revolution.
Drill Feed and Speed Calculator
Drill feed and speed calculator for CNC and manual machines. Enter drill diameter, material, and tool material to get spindle RPM, feed per revolution (IPR), feed rate (IPM), and recommended peck depth for deep holes.
End Mill Speeds and Feeds Calculator
End mill speeds and feeds calculator. Returns spindle RPM, feed rate (IPM and mm/min), chip load, SFM, and material removal rate from end mill diameter, flute count, material, and radial / axial depth. Metric and imperial.
Feed per Tooth Calculator
Feed per tooth calculator (fz). Solve feed per tooth from RPM, feed rate, and flute count, or recommend an fz value for your material. Convert between IPT, mm/tooth, and feed per tooth to mm/min feed rate. Metric and imperial.
Gear and Speed Calculator
Gear and speed calculator: convert between RPM, gear ratio, tyre diameter, and road speed. Find MPH or km/h from engine RPM through any gear, or back-solve the gear ratio that delivers a target speed.
Lathe Surface Speed Calculator
Calculate lathe surface speed (SFM or m/min) from workpiece diameter and spindle RPM. Compares your result to recommended cutting speeds for common materials and tool types.
Milling Speed Calculator
Milling speed calculator for end mills. Computes spindle RPM, cutting speed in SFM, feed rate, chip load, and material removal rate (MRR) from tool diameter, material, flutes, depth, and width of cut.
Reamer Feed and Speed Calculator
Reamer feed and speed calculator for hand and machine reamers. Returns spindle RPM, feed rate (IPM and IPR), feed per flute, and cutting speed (SFM) for chucking, shell, and carbide reamers in aluminum, steel, stainless, and more.
SFPM Calculator
SFPM calculator (surface feet per minute) for milling, turning, and drilling. Computes SFPM from RPM and diameter, or RPM from target SFPM, using SFPM = (pi x D x RPM) / 12.
Speed and Feed Calculator for Tapping
Speed and feed calculator for tapping. Get spindle RPM, feed rate (IPM), and thread pitch lead for UNC, UNF, and metric taps in aluminum, steel, stainless, and more. Supports cutting taps, form (roll) taps, and solid carbide.
Spindle Speed Calculator
Calculate spindle RPM from cutting speed and tool or workpiece diameter. Covers milling, turning, and drilling operations with common material presets.
Sprocket Size and Speed Calculator
Sprocket size and speed calculator for chain drives. Enter drive and driven sprocket teeth, input RPM, and tire diameter to get sprocket ratio, output RPM, and vehicle speed for motorcycles, go-karts, minibikes, and ATVs.
Thread Calculator
Calculate thread dimensions including pitch, TPI, major diameter, minor diameter, and pitch diameter for unified and metric threads.
True Position Calculator
Calculate GD&T true position from X and Y deviations. Determine if a feature passes or fails its tolerance zone.
Welding Calculator
Get recommended welding parameters for MIG, TIG, and stick welding. Enter material thickness, joint type, and process to get amperage, wire size, gas flow, and travel speed.