Utility Calculators
Free utility calculators for age, tips, fuel cost, time zones, temperature, length, weight, data storage, hourly to salary, time, dates, time cards, military time, epoch time, business days, concrete, square footage, paint, gravel, mulch, and cubic yards.
Age Calculator
Calculate your exact age in years, months, and days from your date of birth easily.
Tip Calculator
Easily split bills among friends and calculate tip amounts based on percentages.
Fuel Cost Calculator
Estimate your total fuel expense based on distance, mileage, and current prices.
Time Zone Converter
Quickly convert time between global time zones for meetings or travel planning.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin scales accurately and instantly.
Length Converter
Convert between meters, feet, inches, and other distance units instantly.
Weight Converter
Convert between kilograms, pounds, ounces, and grams for weight tasks with ease.
Data Storage Converter
Convert bytes, kilobytes, megabytes, and other digital storage units.
Hourly to Salary Calculator
Convert an hourly wage to annual, monthly, and weekly pay, or a salary back to an hourly rate.
Time Calculator
Add or subtract durations, or measure hours between two clock times.
Date Calculator
Count days between two dates, or add and subtract days, weeks, months, and years.
Time Card Calculator
Sum in and out punches minus one break, in hours, not pay.
Military Time Converter
Convert 12-hour and 24-hour time, and read the hour chart.
Epoch Converter
Convert Unix seconds and milliseconds to UTC and back, with the local zone labeled.
Business Days Calculator
Count weekdays and skip the listed US federal holidays.
Concrete Calculator
Cubic yards for a slab, footing, or column, plus 60 lb and 80 lb bag counts.
Square Footage Calculator
Add rectangular rooms and read square feet and acres.
Paint Calculator
Wall area minus openings, in gallons.
Gravel Calculator
Length, width, and depth to cubic yards and tons. Sand and topsoil are density presets.
Mulch Calculator
A bed’s length, width, and depth in cubic yards and bags.
Cubic Yard Calculator
Length × width × depth in mixed units, with cubic feet shown beside cubic yards.