Convert Any Unit, Instantly
Fast, accurate, and free unit conversions across 14 categories.
All Categories
Length
Convert between meters, kilometers, miles, feet, inches, and more
11 unitsWeight & Mass
Convert between kilograms, pounds, ounces, grams, and more
9 unitsTemperature
Convert between Celsius, Fahrenheit, and Kelvin
3 unitsArea
Convert between square meters, acres, hectares, and more
10 unitsVolume
Convert between liters, gallons, cups, fluid ounces, and more
11 unitsSpeed
Convert between m/s, km/h, mph, knots, and more
6 unitsTime
Convert between seconds, minutes, hours, days, and more
9 unitsEnergy
Convert between joules, calories, kilowatt hours, BTU, and more
8 unitsPressure
Convert between pascal, bar, PSI, atmosphere, and more
7 unitsData Storage
Convert between bytes, kilobytes, megabytes, gigabytes, and more
10 unitsPower
Convert between watts, kilowatts, horsepower, and more
6 unitsAngle
Convert between degrees, radians, gradians, and more
5 unitsFrequency
Convert between hertz, kilohertz, megahertz, and more
5 unitsFuel Economy
Convert between MPG, km/L, L/100km, and more
4 unitsCooking
Convert cups, tablespoons, teaspoons, grams, and ounces for recipes
14 unitsPaper Sizes
Compare A4, Letter, Legal, Tabloid, and other paper size areas
11 unitsScreen Resolution
Compare 720p, 1080p, 4K, 8K, and other screen resolution pixel counts
10 unitsShoe Sizes
Convert between US, UK, EU, and Japanese shoe sizes
5 unitsNumeral Systems
Convert between binary, octal, decimal, and hexadecimal
4 units