Conversion Factors

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) x 16.387 = Cubic centimetres (cc; cm3) x 0.061 = Cubic inches (cu in; in3)
Imperial pints (Imp pt) x 0.568 = Litres (l) x 1.76 = 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 quarts (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; oz) x 0.278 = Newtons (N) x 3.6 = Ounces-force (ozf; oz)
Pounds-force (lbf; lb) x 4.448 = Newtons (N) x 0.225 = Pounds-force (lbf; lb)
Newtons (N) x 0.1 = Kilograms-force (kgf; kg) x 9.81 = Newtons (N)
Pressure  
Pounds-force per square inch (psi; lbf/in2; lb/in2) x 0.070 = Kilograms-force per square centimetre (kgf/cm2; kg/cm2) x 14.223 = Pounds-force per square inch (psi; lbf/in2; lb/in2)
Pounds-force per square inch (psi; lbf/in2; lb/in2) x 0.068 = Atmospheres (atm) x 14.696 = Pounds-force per square inch (psi; lbf/in2; lb/in2)
Pounds-force per square inch (psi; lbf/in2; lb/in2) x 0.069 = Bars x 14.5 = Pounds-force per square inch (psi; lbf/in2; lb/in2)
Pounds-force per square inch (psi; lbf/in2; lb/in2) x 6.895 = Kilopascals (kPa) x 0.145 = Pounds-force per square inch (psi; lbf/in2; lb/in2)
Kilopascals (kPa) x 0.01 = Kilograms-force per square centimetre (kgf/cm2; kg/cm2) x 98.1 = Kilopascals (kPa)
Millibar (mbar) x 100 = Pascals (Pa) x 0.01 = Millibar (mbar)
Millibar (mbar) x 0.0145 = Pounds-force per square inch (psi; lbf/in2; lb/in2) x 68.947 = Millibar (mbar)
Millibar (mbar) x 0.75 = Millimetres of mercury (mmHg) x 1.333 = Millibar (mbar)
Millibar (mbar) x 0.401 = Inches of water (inH2O) x 2.491 = Millibar (mbar)
Millimetres of mercury (mmHg) x 0.535 = Inches of water (inH2O) x 1.868 = Millimetres of mercury (mmHg)
Inches of water (inH2O) x 0.036 = Pounds-force per square inch (psi; lbf/in2; lb/in2) x 27.68 = Inches of water (inH2O)
Torque (moment of force)  
Pounds-force inches (lbf in; lb in) x 1.152 = Kilograms-force centimetre (kgf; kg cm) x 0.868 = Pounds-force inches (lbf in; lb in)
Pounds-force inches (lbf in; lb in) x 0.113 = Newton metres (Nm) x 8.85 = Pounds-force inches (lbf in; lb in)
Pounds-force inches (lbf in; lb in) x 0.083 = Pounds-force feet (lbf; lb ft) x 12 = Pounds-force inches (lbf in; lb in)
Pounds-force feet (lbf; lb ft) x 0.138 = Kilograms-force metres (kgf m; kg m) x 7.233 = Pounds-force feet (lbf; lb ft)
Pounds-force feet (lbf; lb ft) x 1.356 = Newton metres (Nm) x 0.738 = Pounds-force feet (lbf; lb ft)
Newton metres (Nm) x 0.102 = Kilograms-force metres (kgf m; kg m) x 9.804 = Newton metres (Nm)
Power  
Horsepower (hp) x 745.7 = Watts (W) x 0.0013 = Horsepower (hp)
Velocity  
Miles per hour (miles/hr; mph) x 1.609 = Kilometres per hours (km/hr; kph) x 0.621 = Miles per hour (miles/hr; mph)
Fuel consumption **  
Miles per gallon, Imperial (mpg) x 0.354 = Kilometres per litre (km/l) x 2.825 = Miles per gallon, Imperial (mpg)
Miles per gallon, US (mpg) x 0.425 = Kilometres per litre (km/l) x 2.352 = Miles per gallon, US (mpg)
Temperature  
Degrees Fahrenheit (°F)= (°C x 1.8) + 32  

Degrees Celsius (°C) = (°F - 32) x 0.56

 
** It is common practice to convert from miles per gallon (mpg) to litres/100kilometres (l/100km),
where mpg (Imperial) x l/100km = 282 and mpg (US) x l/100km = 235

The history of BMW

1927