Unit Conversion Calculators
Instantly convert between metric and imperial units — length, weight, temperature, area, volume and more.
81 calculators
- LengthConvert between length units instantly.
- CurrencyConvert between world currencies instantly.
- CM to InchesConvert centimeters to inches instantly.
- KG to LBSConvert kilograms to pounds instantly.
- Celsius to FahrenheitConvert Celsius to Fahrenheit instantly.
- OZ to MLConvert fluid ounces to milliliters instantly.
- BytesConvert bytes to KB, MB, GB and TB in both decimal and binary scales.
- Carats to GramsConvert carats to grams and milligrams; 1 carat is exactly 0.2 g.
- CM to FeetConvert cm to feet and inches instantly.
- CM to MMConvert centimeters to millimeters for engineering, crafts, and precision work.
- Cuadras to HectaresConvert cuadras to hectares for South American land.
- Cups to GramsConvert cups to grams by ingredient — flour, sugar, butter, honey and more.
- Cups to mLConvert cups to mL for recipes.
- Cups to QuartsConvert cups to quarts — 4 per quart, plus the five different cups.
- Cups to TablespoonsConvert cups to tablespoons — 16 per cup, plus the Australian spoon trap.
- Days to SecondsConvert days to seconds — 86,400, leap seconds and Unix time explained.
- Degrees to RadiansConvert degrees to radians and back, with the exact π multiples.
- Fahrenheit to CelsiusConvert Fahrenheit to Celsius instantly.
- Fanegadas to HectaresConvert Colombian fanegadas to hectares.
- Feet to CMConvert feet to centimeters instantly.
- Feet to InchesConvert feet to inches, including decimal feet turned into sixteenths.
- Feet to MetersConvert feet to meters instantly.
- Fluid Ounces to CupsConvert fluid ounces to cups, with the weight-ounce trap explained.
- Gallons to CupsConvert gallons to cups — 16 per gallon, and the gallon man.
- Gallons to Fluid OuncesConvert gallons to fluid ounces — 128 US, 160 imperial.
- Gallons to LitersConvert gallons to liters for cooking and fuel.
- Gallons to QuartsConvert gallons to quarts — 4 per gallon, plus the dry quart.
- Grams to OuncesConvert grams to ounces for cooking, jewelry, shipping, and everyday weight meas
- Grams to PoundsConvert grams to pounds with the exact 1959 factor, including troy vs avoirdupois.
- Hectares to AcresConvert hectares to acres and square metres for land and crops.
- Hectares to TareasConvert hectares to Dominican tareas, square metres and acres.
- Inches to CMConvert inches to centimeters instantly.
- Inches to FeetConvert inches to feet instantly.
- Inches to MMConvert inches to millimeters instantly.
- Joules to CaloriesConvert joules to calories and kcal, food labels included.
- KB to MBConvert KB to MB and check whether a file fits an attachment limit.
- KelvinConvert kelvin to Celsius, Fahrenheit and Rankine, absolute zero included.
- KG to StonesConvert kilograms to stones and pounds with a reference table.
- Kilograms to GramsConvert kilograms to grams, milligrams, pounds and ounces.
- KM to MilesConvert kilometers to miles instantly.
- km/h to mphConvert km/h to mph with the real speed limits you meet abroad.
- Knots to MPHConvert knots to mph, km/h and m/s for sailing, flying and wind.
- kWh to BTUConvert kWh to BTU and megajoules, with real air-conditioning figures.
- LBS to KGConvert pounds to kilograms instantly.
- Liters to CupsConvert litres to cups for stocks, soups and batch cooking.
- Liters to GallonsConvert litres to US and imperial gallons, quarts and millilitres.
- Liters to MillilitersConvert liters to milliliters, with the mL vs gram trap explained.
- Liters to PintsConvert litres to US and imperial pints, with both sizes side by side.
- Manzanas to HectaresConvert manzanas to hectares for Central American land.
- MB to GBConvert MB to GB and see what a data plan actually buys in streaming.
- Mbps to MB/sConvert Mbps to MB/s and see the real download speed of your plan.
- Meters to FeetConvert meters to feet instantly.
- Meters to YardsConvert metres to yards and feet, with real sports distances.
- Miles to FeetConvert miles to feet — 5,280 per mile, and why not 5,000.
- Miles to KMConvert miles to kilometers instantly.
- mL to CupsConvert mL to cups, and see which of the five cups a recipe means.
- mL to Fluid OuncesConvert mL to fluid ounces for travel bottles, cosmetics and drinks.
- mL to TablespoonsConvert mL to tablespoons, with the US, metric and Australian sizes.
- mL to TeaspoonsConvert mL to teaspoons, with the medicine-dosing caveat.
- MM to InchesConvert millimeters to inches instantly.
- MPG to km/LConvert mpg to km/L and L/100 km, US and imperial gallons included.
- MPH to KM/HConvert mph to km/h for speed and driving.
- Ounces to PoundsConvert ounces to pounds, grams and kilograms; 16 oz make a pound.
- Pints to LitersConvert US and UK pints to liters with a reference table.
- Pounds to GramsConvert pounds to grams exactly, including lb-and-oz and stone weights.
- PSI to BarConvert psi to bar, kPa and atm, with real tyre and boiler values.
- Quarts to LitersConvert quarts to litres for oil changes, stock pots and cartons.
- Square Feet to Square MetersConvert sq ft to sq m for real estate.
- Square Meters to Square FeetConvert square metres to square feet for homes, floors and land.
- Square Meters to TareasConvert square metres to Dominican tareas for plots and building lots.
- Steps to MilesConvert steps to miles from your height and pace, not a flat rule.
- Stones to KGConvert stones to kilograms with a handy reference table.
- Tablespoons to CupsConvert tablespoons to cups, including the awkward thirds.
- Tablespoons to mLConvert tablespoons to milliliters for cooking and baking.
- Tareas to Square MetersConvert Dominican tareas to square meters.
- Teaspoons to TablespoonsConvert teaspoons to tablespoons — 3 to 1, and where that rule fails.
- TorqueConvert N·m, ft·lb, in·lb and kgf·m with real tightening values.
- Varas to MetersConvert varas to meters, feet, and inches.
- Watts to HorsepowerConvert watts to horsepower, kW and metric PS, all at once.
- Watts to KilowattsConvert watts to kilowatts, and see why kW is not the same as kWh.
- Years to WeeksConvert years to weeks — 52.18, not 52, and what the remainder causes.
About these calculators
Free unit conversion calculators: length, weight, temperature, area, volume, speed, data, and more. Convert between metric and imperial units instantly.