Concrete Weight Calculator
Knowing how much your concrete weighs matters for structural loading, transportation, and crane sizing. Enter the shape and dimensions of your concrete element to calculate its weight. Standard concrete weighs about 150 lb per cubic foot, but lightweight and heavyweight mixes differ significantly.
Concrete Weight by Type
Not all concrete weighs the same. The density depends on the aggregate used:
| Concrete Type | Density (lb/ft³) | Use Case |
|---|---|---|
| Lightweight | 90-115 | Upper floors, precast panels |
| Normal weight | 140-150 | Slabs, footings, walls |
| Heavyweight | 170-200 | Radiation shielding, counterweights |
Quick Weight References
- 4 inch slab, 1 ft²: About 50 lbs
- 4 inch slab, 10x10 ft: About 5,000 lbs (2.5 tons)
- 12 inch diameter column, 8 ft tall: About 942 lbs
- 1 cubic yard of concrete: About 4,050 lbs (2 tons)
Why Concrete Weight Matters
You need to know concrete weight when sizing structural supports beneath a slab, figuring out how many truckloads a pour requires, or determining if a floor can handle the load. A standard concrete truck holds about 10 cubic yards, which weighs around 40,000 lbs.