Unit Converters
Convert length, weight, temperature, volume, area, speed, data and cooking units with exact formulas.
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Length
Meters to Feet Converter
Convert meters to feet instantly and accurately. 1 m = 3.2808 ft. Type any value below — the result updates as you type.
Millimeters to Centimeters Converter
Convert millimeters to centimeters instantly and accurately. 1 mm = 0.1 cm. Type any value below — the result updates as you type.
Centimeters to Inches Converter
Convert centimeters to inches instantly and accurately. 1 cm = 0.3937 in. Type any value below — the result updates as you type.
Inches to Centimeters Converter
Convert inches to centimeters instantly and accurately. 1 in = 2.54 cm. Type any value below — the result updates as you type.
Millimeters to Inches Converter
Convert millimeters to inches instantly and accurately. 1 mm = 0.03937 in. Type any value below — the result updates as you type.
Inches to Millimeters Converter
Convert inches to millimeters instantly and accurately. 1 in = 25.4 mm. Type any value below — the result updates as you type.
Feet to Meters Converter
Convert feet to meters instantly and accurately. 1 ft = 0.3048 m. Type any value below — the result updates as you type.
Kilometers to Miles Converter
Convert kilometers to miles instantly and accurately. 1 km = 0.6214 mi. Type any value below — the result updates as you type.
Miles to Kilometers Converter
Convert miles to kilometers instantly and accurately. 1 mi = 1.6093 km. Type any value below — the result updates as you type.
Feet to Centimeters Converter
Convert feet to centimeters instantly and accurately. 1 ft = 30.48 cm. Type any value below — the result updates as you type.
Meters to Yards Converter
Convert meters to yards instantly and accurately. 1 m = 1.0936 yd. Type any value below — the result updates as you type.
Centimeters to Feet Converter
Convert centimeters to feet instantly and accurately. 1 cm = 0.03281 ft. Type any value below — the result updates as you type.
Yards to Meters Converter
Convert yards to meters instantly and accurately. 1 yd = 0.9144 m. Type any value below — the result updates as you type.
Meters to Millimeters Converter
Convert meters to millimeters instantly and accurately. 1 m = 1000 mm. Type any value below — the result updates as you type.
Time
Minutes to Hours Converter
Convert minutes to hours instantly and accurately. 1 min = 0.01667 h. Type any value below — the result updates as you type.
Seconds to Minutes Converter
Convert seconds to minutes instantly and accurately. 1 s = 0.01667 min. Type any value below — the result updates as you type.
Days to Hours Converter
Convert days to hours instantly and accurately. 1 d = 24 h. Type any value below — the result updates as you type.
Digital Storage
Megabytes to Gigabytes Converter
Convert megabytes to gigabytes instantly and accurately. 1 MB = 0.001 GB. Type any value below — the result updates as you type.
Gigabytes to Megabytes Converter
Convert gigabytes to megabytes instantly and accurately. 1 GB = 1000 MB. Type any value below — the result updates as you type.
Kilobytes to Megabytes Converter
Convert kilobytes to megabytes instantly and accurately. 1 KB = 0.001 MB. Type any value below — the result updates as you type.
Gigabytes to Terabytes Converter
Convert gigabytes to terabytes instantly and accurately. 1 GB = 0.001 TB. Type any value below — the result updates as you type.
Terabytes to Gigabytes Converter
Convert terabytes to gigabytes instantly and accurately. 1 TB = 1000 GB. Type any value below — the result updates as you type.
Kilobytes to Bytes Converter
Convert kilobytes to bytes instantly and accurately. 1 KB = 1000 B. Type any value below — the result updates as you type.
Bytes to Bits Converter
Convert bytes to bits instantly and accurately. 1 B = 8 b. Type any value below — the result updates as you type.
Gibibytes to Gigabytes Converter
Convert gibibytes to gigabytes instantly and accurately. 1 GiB = 1.0737 GB. Type any value below — the result updates as you type.
Angle
Radians to Degrees Converter
Convert radians to degrees instantly and accurately. 1 rad = 57.2958 °. Type any value below — the result updates as you type.
Degrees to Radians Converter
Convert degrees to radians instantly and accurately. 1 ° = 0.01745 rad. Type any value below — the result updates as you type.
Weight
Pounds to Kilograms Converter
Convert pounds to kilograms instantly and accurately. 1 lb = 0.4536 kg. Type any value below — the result updates as you type.
Pounds to Ounces Converter
Convert pounds to ounces instantly and accurately. 1 lb = 16 oz. Type any value below — the result updates as you type.
Kilograms to Pounds Converter
Convert kilograms to pounds instantly and accurately. 1 kg = 2.2046 lb. Type any value below — the result updates as you type.
Grams to Ounces Converter
Convert grams to ounces instantly and accurately. 1 g = 0.03527 oz. Type any value below — the result updates as you type.
Ounces to Grams Converter
Convert ounces to grams instantly and accurately. 1 oz = 28.3495 g. Type any value below — the result updates as you type.
Milligrams to Grams Converter
Convert milligrams to grams instantly and accurately. 1 mg = 0.001 g. Type any value below — the result updates as you type.
Stone to Pounds Converter
Convert stone to pounds instantly and accurately. 1 st = 14 lb. Type any value below — the result updates as you type.
Kilograms to Grams Converter
Convert kilograms to grams instantly and accurately. 1 kg = 1000 g. Type any value below — the result updates as you type.
Metric Tons to Kilograms Converter
Convert metric tons to kilograms instantly and accurately. 1 t = 1000 kg. Type any value below — the result updates as you type.
Kilograms to Stone Converter
Convert kilograms to stone instantly and accurately. 1 kg = 0.1575 st. Type any value below — the result updates as you type.
Temperature
Celsius to Fahrenheit Converter
Convert celsius to fahrenheit instantly and accurately. 1 °C = 33.8 °F. Type any value below — the result updates as you type.
Fahrenheit to Celsius Converter
Convert fahrenheit to celsius instantly and accurately. 1 °F = -17.2222 °C. Type any value below — the result updates as you type.
Celsius to Kelvin Converter
Convert celsius to kelvin instantly and accurately. 1 °C = 274.15 K. Type any value below — the result updates as you type.
Area
Acres to Square Feet Converter
Convert acres to square feet instantly and accurately. 1 ac = 43560 ft². Type any value below — the result updates as you type.
Square Feet to Acres Converter
Convert square feet to acres instantly and accurately. 1 ft² = 0.00002296 ac. Type any value below — the result updates as you type.
Hectares to Acres Converter
Convert hectares to acres instantly and accurately. 1 ha = 2.4711 ac. Type any value below — the result updates as you type.
Square Feet to Square Meters Converter
Convert square feet to square meters instantly and accurately. 1 ft² = 0.0929 m². Type any value below — the result updates as you type.
Square Meters to Square Feet Converter
Convert square meters to square feet instantly and accurately. 1 m² = 10.7639 ft². Type any value below — the result updates as you type.
Square Yards to Square Feet Converter
Convert square yards to square feet instantly and accurately. 1 yd² = 9 ft². Type any value below — the result updates as you type.
Volume
Liters to Gallons Converter
Convert liters to gallons instantly and accurately. 1 L = 0.2642 gal. Type any value below — the result updates as you type.
Tablespoons to Cups Converter
Convert tablespoons to cups instantly and accurately. 1 tbsp = 0.0625 cup. Type any value below — the result updates as you type.
Fluid Ounces to Milliliters Converter
Convert fluid ounces to milliliters instantly and accurately. 1 fl oz = 29.5735 ml. Type any value below — the result updates as you type.
Milliliters to Liters Converter
Convert milliliters to liters instantly and accurately. 1 ml = 0.001 L. Type any value below — the result updates as you type.
Milliliters to Cups Converter
Convert milliliters to cups instantly and accurately. 1 ml = 0.004227 cup. Type any value below — the result updates as you type.
Gallons to Liters Converter
Convert gallons to liters instantly and accurately. 1 gal = 3.7854 L. Type any value below — the result updates as you type.
Cups to Milliliters Converter
Convert cups to milliliters instantly and accurately. 1 cup = 236.5882 ml. Type any value below — the result updates as you type.
Quarts to Liters Converter
Convert quarts to liters instantly and accurately. 1 qt = 0.9464 L. Type any value below — the result updates as you type.
Pints to Milliliters Converter
Convert pints to milliliters instantly and accurately. 1 pt = 473.1765 ml. Type any value below — the result updates as you type.
Teaspoons to Milliliters Converter
Convert teaspoons to milliliters instantly and accurately. 1 tsp = 4.9289 ml. Type any value below — the result updates as you type.
Pressure
Bars to PSI Converter
Convert bars to psi instantly and accurately. 1 bar = 14.5038 psi. Type any value below — the result updates as you type.
Kilopascals to PSI Converter
Convert kilopascals to psi instantly and accurately. 1 kPa = 0.145 psi. Type any value below — the result updates as you type.
PSI to Bars Converter
Convert psi to bars instantly and accurately. 1 psi = 0.06895 bar. Type any value below — the result updates as you type.
Atmospheres to PSI Converter
Convert atmospheres to psi instantly and accurately. 1 atm = 14.6959 psi. Type any value below — the result updates as you type.
Millimeters of Mercury to Kilopascals Converter
Convert millimeters of mercury to kilopascals instantly and accurately. 1 mmHg = 0.1333 kPa. Type any value below — the result updates as you type.
Speed
Knots to Miles per Hour Converter
Convert knots to miles per hour instantly and accurately. 1 kn = 1.1508 mph. Type any value below — the result updates as you type.
Kilometers per Hour to Miles per Hour Converter
Convert kilometers per hour to miles per hour instantly and accurately. 1 km/h = 0.6214 mph. Type any value below — the result updates as you type.
Miles per Hour to Kilometers per Hour Converter
Convert miles per hour to kilometers per hour instantly and accurately. 1 mph = 1.6093 km/h. Type any value below — the result updates as you type.
Feet per Second to Miles per Hour Converter
Convert feet per second to miles per hour instantly and accurately. 1 ft/s = 0.6818 mph. Type any value below — the result updates as you type.
Meters per Second to Kilometers per Hour Converter
Convert meters per second to kilometers per hour instantly and accurately. 1 m/s = 3.6 km/h. Type any value below — the result updates as you type.
Torque
Foot-pounds to Newton-meters Converter
Convert foot-pounds to newton-meters instantly and accurately. 1 ft-lb = 1.3558 Nm. Type any value below — the result updates as you type.
Newton-meters to Inch-pounds Converter
Convert newton-meters to inch-pounds instantly and accurately. 1 Nm = 8.8507 in-lb. Type any value below — the result updates as you type.
Newton-meters to Foot-pounds Converter
Convert newton-meters to foot-pounds instantly and accurately. 1 Nm = 0.7376 ft-lb. Type any value below — the result updates as you type.
Energy
Joules to Kilocalories Converter
Convert joules to kilocalories instantly and accurately. 1 J = 0.000239 kcal. Type any value below — the result updates as you type.
Kilocalories to Kilojoules Converter
Convert kilocalories to kilojoules instantly and accurately. 1 kcal = 4.184 kJ. Type any value below — the result updates as you type.
Kilowatt-hours to Joules Converter
Convert kilowatt-hours to joules instantly and accurately. 1 kWh = 3600000 J. Type any value below — the result updates as you type.
Kilowatt-hours to Watt-hours Converter
Convert kilowatt-hours to watt-hours instantly and accurately. 1 kWh = 1000 Wh. Type any value below — the result updates as you type.
Fuel Economy
Liters per 100 km to Miles per Gallon (US) Converter
Convert liters per 100 km to miles per gallon (us) instantly and accurately. 1 L/100km = 235.2146 mpg. Type any value below — the result updates as you type.
Miles per Gallon (US) to Liters per 100 km Converter
Convert miles per gallon (us) to liters per 100 km instantly and accurately. 1 mpg = 235.2146 L/100km. Type any value below — the result updates as you type.
Kilometers per Liter to Miles per Gallon (US) Converter
Convert kilometers per liter to miles per gallon (us) instantly and accurately. 1 km/L = 2.3521 mpg. Type any value below — the result updates as you type.
Frequency
Hertz to RPM Converter
Convert hertz to rpm instantly and accurately. 1 Hz = 60 rpm. Type any value below — the result updates as you type.
Megahertz to Gigahertz Converter
Convert megahertz to gigahertz instantly and accurately. 1 MHz = 0.001 GHz. Type any value below — the result updates as you type.
Getting the conversion you actually need
Each converter opens on one pair, such as Centimeters to Inches Converter or Kilograms to Pounds Converter, but the dropdowns let you switch to any other unit of the same kind, and the swap button reverses the direction. You rarely need to hunt for the exact page: open the closest one and change the units.
Everyday measures
Height usually means Feet to Centimeters Converter. Body weight and parcels mean Pounds to Kilograms Converter. For weather reports and oven settings, use Fahrenheit to Celsius Converter. Road distances and running routes go through Kilometers to Miles Converter.
Where people get caught out
- Gallons and cups: volume and cooking conversions here use US measures. A UK recipe or an imperial gallon gives a different answer.
- Weight versus volume: grams measure weight and cups measure volume, so there is no single grams-to-cups answer for flour or sugar. Tablespoons to Cups Converter converts volume to volume only.
- Data sizes: Megabytes to Gigabytes Converter uses decimal prefixes, as drive makers do. If your operating system reports binary sizes, Gibibytes to Gigabytes Converter shows why a new drive looks smaller than the box says.
Results update in your browser as you type, using fixed conversion factors, and each page shows the formula it applies so you can check the arithmetic yourself.