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Unit Converter

Support fast conversion of various units including length, area, volume, weight, temperature, etc.

LengthConversion
Length unit conversion supporting metric, imperial and traditional Chinese units
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Common Units

pmnmμmmmcmdm

Common Unit Conversions

Quick reference for frequently used unit conversions

Length

FromToFormulaExample
Inches (in)Centimeters (cm)in × 2.541 in = 2.54 cm
Feet (ft)Meters (m)ft × 0.30481 ft = 0.3048 m
Miles (mi)Kilometers (km)mi × 1.6091 mi = 1.609 km
Meters (m)Feet (ft)m × 3.2811 m = 3.281 ft
Kilometers (km)Miles (mi)km × 0.6211 km = 0.621 mi

Weight / Mass

FromToFormulaExample
Ounces (oz)Grams (g)oz × 28.351 oz = 28.35 g
Pounds (lb)Kilograms (kg)lb × 0.4541 lb = 0.454 kg
Kilograms (kg)Pounds (lb)kg × 2.2051 kg = 2.205 lb
Tons (t)Tonnes (t)t × 0.9071 t = 0.907 tonnes

Volume

FromToFormulaExample
Fl oz (US)Milliliters (ml)fl oz × 29.5741 fl oz = 29.574 ml
Cups (US)Milliliters (ml)cup × 236.5881 cup = 236.588 ml
Pints (US)Liters (L)pt × 0.4731 pt = 0.473 L
Gallons (US)Liters (L)gal × 3.7851 gal = 3.785 L
Liters (L)Gallons (US)L × 0.2641 L = 0.264 gal

Temperature

FromToFormulaExample
Celsius (°C)Fahrenheit (°F)(°C × 9/5) + 320°C = 32°F
Fahrenheit (°F)Celsius (°C)(°F - 32) × 5/932°F = 0°C
Celsius (°C)Kelvin (K)°C + 273.150°C = 273.15 K
Kelvin (K)Celsius (°C)K - 273.15273.15 K = 0°C

Area

FromToFormulaExample
Sq feet (ft²)Sq meters (m²)ft² × 0.09291 ft² = 0.0929 m²
Sq meters (m²)Sq feet (ft²)m² × 10.7641 m² = 10.764 ft²
AcresHectares (ha)acre × 0.4051 acre = 0.405 ha
Hectares (ha)Acresha × 2.4711 ha = 2.471 acres

Speed

FromToFormulaExample
MPHKM/Hmph × 1.6091 mph = 1.609 km/h
KM/HMPHkm/h × 0.6211 km/h = 0.621 mph
KnotsMPHknots × 1.1511 knot = 1.151 mph
M/SKM/Hm/s × 3.61 m/s = 3.6 km/h

Note: These are commonly used conversions with approximate values rounded for practical use. For precise conversions, use the calculator tool above.

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