Length (distance)
Inches (in) x 25.4 = Millimetres (mm) x 0.0394 = Inches (in)
Feet (ft) x 0.305 = Metres (m) x 3.281 = Feet (ft)
Miles x 1.609 = Kilometres (km) x 0.621 = Miles
Volume (capacity)
Cubic inches (cu in; in³) 16.387 = Cubic centimetres (cc; cm²) x 0.061 = Cubic inches (cu in; in³)
Imperial pints (Imp pt) x 0.568 = Litres (l) x 1.760 = Imperial pints (Imp pt)
Imperial quarts (Imp qt) x 1.137 = Litres (l) x 0.88 = Imperial quarts (Imp qt)
Imperial quarts (Imp qt) x 1.201 = US quart (US qt) x 0.833 = Imperial quarts (Imp qt)
US quarts (US qt) x 0.946 = Litres (l) x 1.057 = US quarts (US qt)
Imperial gallons (Imp gal) x 4.546 = Litres (l) x 0.22 = Imperial gallons (Imp gal)
Imperial gallons (Imp gal) x 1.201 = US gallons (US gal) x 0.833 = Imperial gallons (Imp gal)
US gallons (US gal) x 3.785 = Litres (l) x 0.264 = US gallons (US gal)
Mass (weight)
Ounces (oz) x 28.35 = Grams (g) x 0.035 = Ounces (oz)
Pounds (lb) x 0.454 = Kilograms (kg) x 2.205 = Pounds (lb)
Force
Ounces-force (ozf) x 0.278 = Newtons (N) x 3.6 = Ounces-force (ozf)
Pounds-force (lbf) x 4.448 = Newtons (N) x 0.225 = Pounds-force (lbf)
Newtons (N) x 0.1 = Kilograms-force (kgf; kg) x 9.81 = Newtons (N)
Pressure
PSI; lbf/in² x 0.070 = kgf/cm²; kg/cm² x 14.223 = PSI; lbf/in²
PSI; lbf/in² x 0.068 = Atmospheres (atm) x 14.696 = PSI; lbf/in²
PSI; lbf/in² x 0.069 = Bars x 14.5 = PSI; lbf/in²
PSI; lbf/in² x 6.895 = Kilopascals (kPa) x 0.145 = PSI; lbf/in²
Kilopascals (kPa) x 0.01 = kgf/cm²; kg/cm² x 98.1 = Kilopascals (kPa)
Torque
Pounds-force inch (lbf/in) x 1.152 = kgf cm; kg cm x 0.868 = Pounds-force inch (lbf/in)
Pounds-force inch (lbf/in) x 0.113 = Newton metres (Nm) x 8.85 = Pounds-force inch (lbf/in)
Pounds-force inch (lbf/in) x 0.083 = lbf ft; lb ft x 12 = Pounds-force inch (lbf/in)
Pounds-force feet (lbf/ft) x 0.138 = kgf m; kg m x 7.233 = Pounds-force feet (lbf/ft)
Pounds-force feet (lbf/ft) x 1.356 = Newton metres (Nm) x 0.738 = Pounds-force feet (lbf/ft)
Newton metres (Nm) x 0.102 = kgf m; kg m x 9.804 = Newton metres (Nm)
Power
Horsepower (hp) x 745.7 = Watts (W) x 0.0013 = Horsepower (hp)
Velocity (speed)
Miles per hour (mph) x 1.609 = Kilomtres per hour (kph) x 0.621 = Miles per hour (mph)
Fuel consumption*
mpg (imperial) x 0.354 = Kilometres per litre (km/l) x 2.825 = mpg (imperial)
mpg (US) x 0.425 = Kilometres per litre (km/l) x 2.352 = mpg (US)
Temperature
Degrees Fahrenheit (°F) =(°C x 1.8) + 32 
Degrees Celcius (Degrees Centigrade; °C) =(°F - 32) x 0.56
 
* It is common practice to convert from miles per gallon (mpg) to litres/100 kilometres (l/100km), where mpg (Imperial) x l/100 km = 282 and mpg (US) x l/100 km = 235.

 

Haynes Publishing website... Special thanks to Haynes Publishing for their kind permission to reproduce these tables.

©2003 Haynes Publishing

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