Conversion calculator

Length | Area | Liquid volume | Liquid flow | Pressure | Temperature | Energy | Power

Enter a value into any of the boxes below to see that value converted into the other units.

Length

millimetres (mm)

inches (in)

centimetres (cm)

feet (ft)

metres (m)

yards (yd)

kilometres (km)

miles (mi)

Area

square mm (mm²)

square inches (in²)

square cm (cm²)

square feet (ft²)

square m (m²)

Liquid volume

millilitres (ml)

pints (pt)

litres (l)

imperial gallons

NB A cube of water 100 × 100 × 100 mm has a volume of 1 litre and mass of 1 kg at 4°C.
A cubic metre of water has a volume of 1,000 litres and a mass of 1,000 kg at 4°C.

Liquid flow

litres per second (l/s)

gallons per minute (gpm)

cubic metres per second (m³/s)

Pressure

pascals (Pa = N/m²)

mm Hg (torr)

kilopascals (kPa)

PSI (lb/in²)

millibars (mb)

atmospheres (atm)

bars (b)

Temperature

° Celsius (°C)

° Fahrenheit (°F)

Kelvin (K)

Energy

joules (J)

calories (cal)

BTU

kilocalories (kcal)

Power

watts (W)

BTU per hour (BTU/h)

kilowatts (kW)

horse power (hp)