Everyday Life Calculators

Calculate your exact age in years, months, and days from your date of birth.

Calculate missing width or height to maintain an aspect ratio, or find the aspect ratio of given dimensions.

Calculate actual listening time and time saved at different playback speeds.

Estimate battery runtime from battery capacity (mAh) and device power consumption.

Find your exact age, age in days and hours, days until your next birthday, birth day of the week, and zodiac sign.

Find your bra size from band and bust measurements using the standard fitting method.

Count working days between two dates or add business days to a date, with optional Saturday inclusion.

Estimate your annual carbon footprint from transportation, home energy, and diet choices.

Calculate how much carpet you need for a room including square footage, square yards, and estimated rolls.

Convert your cat's age to human years using the veterinary-standard formula.

Calculate your daily, weekly, monthly, and yearly commute costs including fuel and tolls.

Convert between cooking measurement units: cups, tablespoons, teaspoons, milliliters, and fluid ounces.

Calculate the right curtain dimensions, number of panels, and fabric yardage for your windows.

Estimate mobile data consumption from video, music, social media, browsing, and email to find the right phone plan.

Add or subtract days, weeks, and months from a date to find a future or past date.

Calculate the number of days, weeks, and months between two dates.

Estimate how many diapers your baby needs per month and the cost based on age and brand preference.

Convert your dog's age to human years using the updated logarithmic formula based on DNA methylation research.

Calculate file transfer time between devices or over a network from file size and transfer speed.

Convert bust, waist, and hip measurements to US, UK, and EU dress sizes with body shape analysis.

Calculate electricity cost from watts, hours of use, and your rate per kWh.

Calculate days, weeks, and hours remaining until a future date or event.

Calculate the minimum grade you need on your final exam to achieve your desired course grade.

Calculate how many cords of firewood you need for the season and estimate cost.

Calculate the fuel cost of a trip based on distance, fuel efficiency, and fuel price.

Calculate your vehicle's fuel efficiency in MPG or L/100km from distance traveled and fuel used.

Determine what size generator you need by selecting appliances. Calculates running and starting watts.

Calculate your Grade Point Average. Enter letter grades and credit hours for up to 6 courses.