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Unit converters

Convert length, weight, temperature, area (marla, kanal, acre), volume, speed, data and more. Every converter shows the formula and a ready-made conversion table.

Converters by category

Unit ConverterConvert between 120 units in 13 categories, from centimetres and kilograms to marla… Length ConverterConvert between 12 length units, with the formula and a full table of equivalents Weight ConverterConvert between 12 weight units, with the formula and a full table of equivalents Temperature ConverterConvert between 4 temperature units, with the formula and a full table of equivalents Area ConverterConvert between 11 area units, with the formula and a full table of equivalents Volume ConverterConvert between 13 volume units, with the formula and a full table of equivalents Speed ConverterConvert between 6 speed units, with the formula and a full table of equivalents Time ConverterConvert between 8 time units, with the formula and a full table of equivalents Data storage ConverterConvert between 13 data storage units, with the formula and a full table of equivalents Pressure ConverterConvert between 7 pressure units, with the formula and a full table of equivalents Energy ConverterConvert between 7 energy units, with the formula and a full table of equivalents Power ConverterConvert between 6 power units, with the formula and a full table of equivalents Fuel economy ConverterConvert between 4 fuel economy units, with the formula and a full table of equivalents Angle ConverterConvert between 6 angle units, with the formula and a full table of equivalents

Length conversions

CM to InchesConvert centimeters (cm) to inches (in) instantly Inches to CMConvert inches (in) to centimeters (cm) instantly MM to InchesConvert millimeters (mm) to inches (in) instantly Inches to MMConvert inches (in) to millimeters (mm) instantly CM to FeetConvert centimeters (cm) to feet (ft) instantly Feet to CMConvert feet (ft) to centimeters (cm) instantly Feet to MetersConvert feet (ft) to meters (m) instantly Meters to FeetConvert meters (m) to feet (ft) instantly KM to MilesConvert kilometers (km) to miles (mi) instantly Miles to KMConvert miles (mi) to kilometers (km) instantly Inches to FeetConvert inches (in) to feet (ft) instantly Feet to InchesConvert feet (ft) to inches (in) instantly Meters to YardsConvert meters (m) to yards (yd) instantly Yards to MetersConvert yards (yd) to meters (m) instantly MM to CMConvert millimeters (mm) to centimeters (cm) instantly CM to MMConvert centimeters (cm) to millimeters (mm) instantly CM to MetersConvert centimeters (cm) to meters (m) instantly Meters to CMConvert meters (m) to centimeters (cm) instantly Meters to KMConvert meters (m) to kilometers (km) instantly KM to MetersConvert kilometers (km) to meters (m) instantly Meters to InchesConvert meters (m) to inches (in) instantly Inches to MetersConvert inches (in) to meters (m) instantly Feet to YardsConvert feet (ft) to yards (yd) instantly Yards to FeetConvert yards (yd) to feet (ft) instantly Miles to FeetConvert miles (mi) to feet (ft) instantly Feet to MilesConvert feet (ft) to miles (mi) instantly MM to FeetConvert millimeters (mm) to feet (ft) instantly Feet to MMConvert feet (ft) to millimeters (mm) instantly Nautical Miles to KMConvert nautical miles (nmi) to kilometers (km) instantly KM to Nautical MilesConvert kilometers (km) to nautical miles (nmi) instantly Microns to MMConvert micrometers (µm) to millimeters (mm) instantly

Weight conversions

KG to LBSConvert kilograms (kg) to pounds (lb) instantly LBS to KGConvert pounds (lb) to kilograms (kg) instantly Grams to OuncesConvert grams (g) to ounces (oz) instantly Ounces to GramsConvert ounces (oz) to grams (g) instantly KG to GramsConvert kilograms (kg) to grams (g) instantly Grams to KGConvert grams (g) to kilograms (kg) instantly Stones to KGConvert stones (st) to kilograms (kg) instantly KG to StonesConvert kilograms (kg) to stones (st) instantly Grams to PoundsConvert grams (g) to pounds (lb) instantly Pounds to GramsConvert pounds (lb) to grams (g) instantly Ounces to PoundsConvert ounces (oz) to pounds (lb) instantly Pounds to OuncesConvert pounds (lb) to ounces (oz) instantly MG to GramsConvert milligrams (mg) to grams (g) instantly Grams to MGConvert grams (g) to milligrams (mg) instantly Tons to KGConvert metric tons (t) to kilograms (kg) instantly KG to TonsConvert kilograms (kg) to metric tons (t) instantly Tola to GramsConvert tolas (tola) to grams (g) instantly Grams to TolaConvert grams (g) to tolas (tola) instantly Troy Ounces to GramsConvert troy ounces (oz t) to grams (g) instantly Troy Ounces to TolaConvert troy ounces (oz t) to tolas (tola) instantly Carats to GramsConvert carats (ct) to grams (g) instantly Grams to CaratsConvert grams (g) to carats (ct) instantly Maund to KGConvert maunds (maund) to kilograms (kg) instantly KG to MaundConvert kilograms (kg) to maunds (maund) instantly

Temperature conversions

Celsius to FahrenheitConvert degrees Celsius (°C) to degrees Fahrenheit (°F) instantly Fahrenheit to CelsiusConvert degrees Fahrenheit (°F) to degrees Celsius (°C) instantly Celsius to KelvinConvert degrees Celsius (°C) to kelvins (K) instantly Kelvin to CelsiusConvert kelvins (K) to degrees Celsius (°C) instantly Fahrenheit to KelvinConvert degrees Fahrenheit (°F) to kelvins (K) instantly Kelvin to FahrenheitConvert kelvins (K) to degrees Fahrenheit (°F) instantly

Area conversions

Square Feet to Square MetersConvert square feet (sq ft) to square meters (m²) instantly Square Meters to Square FeetConvert square meters (m²) to square feet (sq ft) instantly Acres to HectaresConvert acres (ac) to hectares (ha) instantly Hectares to AcresConvert hectares (ha) to acres (ac) instantly Acres to Square FeetConvert acres (ac) to square feet (sq ft) instantly Square Feet to AcresConvert square feet (sq ft) to acres (ac) instantly Marla to Square FeetConvert marlas (marla) to square feet (sq ft) instantly Square Feet to MarlaConvert square feet (sq ft) to marlas (marla) instantly Kanal to MarlaConvert kanals (kanal) to marlas (marla) instantly Marla to KanalConvert marlas (marla) to kanals (kanal) instantly Kanal to Square FeetConvert kanals (kanal) to square feet (sq ft) instantly Square Feet to KanalConvert square feet (sq ft) to kanals (kanal) instantly Acre to KanalConvert acres (ac) to kanals (kanal) instantly Kanal to AcreConvert kanals (kanal) to acres (ac) instantly Marla to Square YardsConvert marlas (marla) to square yards (sq yd) instantly Square Yards to MarlaConvert square yards (sq yd) to marlas (marla) instantly Marla to Square MetersConvert marlas (marla) to square meters (m²) instantly Square Meters to MarlaConvert square meters (m²) to marlas (marla) instantly Square Yards to Square FeetConvert square yards (sq yd) to square feet (sq ft) instantly Square Feet to Square YardsConvert square feet (sq ft) to square yards (sq yd) instantly Square Meters to Square YardsConvert square meters (m²) to square yards (sq yd) instantly Square KM to Square MilesConvert square kilometers (km²) to square miles (sq mi) instantly Square Miles to Square KMConvert square miles (sq mi) to square kilometers (km²) instantly Hectares to Square MetersConvert hectares (ha) to square meters (m²) instantly Square Inches to Square CMConvert square inches (sq in) to square centimeters (cm²) instantly

Volume conversions

Liters to GallonsConvert liters (L) to US gallons (gal) instantly Gallons to LitersConvert US gallons (gal) to liters (L) instantly ML to OZConvert milliliters (ml) to US fluid ounces (fl oz) instantly OZ to MLConvert US fluid ounces (fl oz) to milliliters (ml) instantly Cups to MLConvert US cups (cup) to milliliters (ml) instantly ML to CupsConvert milliliters (ml) to US cups (cup) instantly Liters to MLConvert liters (L) to milliliters (ml) instantly ML to LitersConvert milliliters (ml) to liters (L) instantly Tablespoons to MLConvert tablespoons (tbsp) to milliliters (ml) instantly Teaspoons to MLConvert teaspoons (tsp) to milliliters (ml) instantly Cubic Meters to LitersConvert cubic meters (m³) to liters (L) instantly Liters to Cubic MetersConvert liters (L) to cubic meters (m³) instantly Cubic Feet to Cubic MetersConvert cubic feet (cu ft) to cubic meters (m³) instantly Cubic Meters to Cubic FeetConvert cubic meters (m³) to cubic feet (cu ft) instantly UK Gallons to LitersConvert imperial gallons (imp gal) to liters (L) instantly CC to Cubic InchesConvert milliliters (ml) to cubic inches (cu in) instantly

Speed conversions

KM/H to MPHConvert kilometers per hour (km/h) to miles per hour (mph) instantly MPH to KM/HConvert miles per hour (mph) to kilometers per hour (km/h) instantly Knots to KM/HConvert knots (kn) to kilometers per hour (km/h) instantly KM/H to KnotsConvert kilometers per hour (km/h) to knots (kn) instantly M/S to KM/HConvert meters per second (m/s) to kilometers per hour (km/h) instantly KM/H to M/SConvert kilometers per hour (km/h) to meters per second (m/s) instantly Knots to MPHConvert knots (kn) to miles per hour (mph) instantly Mach to KM/HConvert Mach (Mach) to kilometers per hour (km/h) instantly

Time conversions

Hours to MinutesConvert hours (h) to minutes (min) instantly Minutes to HoursConvert minutes (min) to hours (h) instantly Seconds to MinutesConvert seconds (s) to minutes (min) instantly Minutes to SecondsConvert minutes (min) to seconds (s) instantly Days to HoursConvert days (d) to hours (h) instantly Hours to DaysConvert hours (h) to days (d) instantly Weeks to DaysConvert weeks (wk) to days (d) instantly Months to YearsConvert months (mo) to years (yr) instantly Years to DaysConvert years (yr) to days (d) instantly

Data storage conversions

MB to GBConvert megabytes (MB) to gigabytes (GB) instantly GB to MBConvert gigabytes (GB) to megabytes (MB) instantly KB to MBConvert kilobytes (KB) to megabytes (MB) instantly MB to KBConvert megabytes (MB) to kilobytes (KB) instantly GB to TBConvert gigabytes (GB) to terabytes (TB) instantly TB to GBConvert terabytes (TB) to gigabytes (GB) instantly Bytes to KBConvert bytes (B) to kilobytes (KB) instantly Mbps to MB/sConvert megabits (Mb) to megabytes (MB) instantly GB to GiBConvert gigabytes (GB) to gibibytes (GiB) instantly

Pressure conversions

PSI to BarConvert psi (psi) to bars (bar) instantly Bar to PSIConvert bars (bar) to psi (psi) instantly kPa to PSIConvert kilopascals (kPa) to psi (psi) instantly PSI to kPaConvert psi (psi) to kilopascals (kPa) instantly ATM to PSIConvert atmospheres (atm) to psi (psi) instantly mmHg to kPaConvert millimeters of mercury (mmHg) to kilopascals (kPa) instantly Bar to kPaConvert bars (bar) to kilopascals (kPa) instantly

Energy conversions

Kcal to kJConvert kilocalories (kcal) to kilojoules (kJ) instantly kJ to KcalConvert kilojoules (kJ) to kilocalories (kcal) instantly kWh to JoulesConvert kilowatt-hours (kWh) to joules (J) instantly Calories to JoulesConvert calories (cal) to joules (J) instantly BTU to kWhConvert BTU (BTU) to kilowatt-hours (kWh) instantly

Power conversions

HP to kWConvert horsepower (hp) to kilowatts (kW) instantly kW to HPConvert kilowatts (kW) to horsepower (hp) instantly Watts to HPConvert watts (W) to horsepower (hp) instantly BTU to TonConvert BTU per hour (BTU/h) to tons (AC) (TR) instantly Ton to BTUConvert tons (AC) (TR) to BTU per hour (BTU/h) instantly kW to BTUConvert kilowatts (kW) to BTU per hour (BTU/h) instantly PS to HPConvert metric horsepower (PS) to horsepower (hp) instantly

Fuel economy conversions

KM/L to MPGConvert kilometers per liter (km/l) to miles per gallon (US) (mpg) instantly MPG to KM/LConvert miles per gallon (US) (mpg) to kilometers per liter (km/l) instantly MPG to L/100kmConvert miles per gallon (US) (mpg) to liters per 100 km (L/100 km) instantly L/100km to MPGConvert liters per 100 km (L/100 km) to miles per gallon (US) (mpg) instantly KM/L to L/100kmConvert kilometers per liter (km/l) to liters per 100 km (L/100 km) instantly

Angle conversions

Degrees to RadiansConvert degrees (°) to radians (rad) instantly Radians to DegreesConvert radians (rad) to degrees (°) instantly
How it works

Accurate, explained conversions

Conversions use exact international definitions where they exist: 1 inch = 2.54 cm, 1 foot = 0.3048 m, 1 pound = 0.45359237 kg and 1 US gallon = 3.785411784 L. South Asian units are included too: marla, kanal, tola and maund, with notes where the definition varies by region.