Unit Converter
Convert length, weight, area, volume, speed, digital storage, time and temperature instantly between metric, imperial and other common units.
Unit Converter
Convert length, weight, area, volume, speed, digital storage, time and temperature instantly between metric, imperial and other common units.
How Unit Converter Works
Most unit conversions work by multiplying your value by a fixed conversion factor between the two units:
Temperature is the one exception, since Celsius, Fahrenheit and Kelvin scales don't share a common zero point, so they use their own direct formulas instead of a simple multiplication:
Worked Example
Length: 5 kilometers → miles: 5 × 0.621371 = 3.107 miles
Temperature: 30°C → Fahrenheit: (30 × 9/5) + 32 = 86°F
Pick a category (Length, Weight, Area, Volume, Speed, Data, Time or Temperature) at the top of the calculator, choose your From and To units, and the result updates instantly.
Frequently Asked Questions
Which unit categories does the converter support?
Length, Weight/Mass, Area, Volume, Speed, Digital Storage (Data), Time, and Temperature — covering the units people search for most often.
Does the unit converter support temperature conversions?
Yes — switch the category toggle to Temperature to convert between Celsius, Fahrenheit and Kelvin, which use direct formulas rather than a simple multiplication factor.
How accurate are the conversions?
Conversions use standard, internationally recognized conversion factors (for example, 1 mile = 1.609344 km) and are accurate to several decimal places — suitable for everyday, cooking, travel, fitness and general reference use.