Unit Converter
Convert length, weight, volume and temperature units.
About the Unit Converter
The Unit Converter switches between metric and imperial measurements across four common categories: length, weight, volume and temperature. Convert kilometers to miles for a trip, kilograms to pounds for a recipe, liters to gallons for fuel, or Celsius to Fahrenheit for the weather. Pick a category, enter a value, and choose your units — the result is calculated immediately and precisely.
How to use it
- Choose a category such as length or temperature.
- Type the value and select the units to convert from and to.
- The converted result appears instantly below.
Frequently asked questions
Which units are supported?
Length (m, km, cm, mm, mile, yard, foot, inch, nautical mile), weight (g, kg, mg, ton, pound, ounce, stone), volume (liter, ml, m³, gallon, quart, pint, cup, fl oz) and temperature (Celsius, Fahrenheit, Kelvin).
How accurate are the conversions?
Conversions use exact standard factors and are rounded to six decimal places, which is more than precise enough for everyday and most technical use.
Does it convert temperature correctly?
Yes. Temperature uses proper formulas rather than simple ratios, so Celsius, Fahrenheit and Kelvin convert accurately.
Related tools
Percentage Calculator
Solve everyday percentage problems in seconds.
CalculatorsAge Calculator
Find an exact age in years, months and days.
CalculatorsBMI CalculatorNEW
Check your Body Mass Index in metric or imperial.
CalculatorsLoan CalculatorNEW
Estimate monthly payments, total interest and cost.
Calculators