Conversion factors
Length (distance)
Inches (in)
Feet (ft)
Miles
X 25.4 = Millimetres (mm)
X 0.305 = Metres (m)
X 1.609 = Kilometres (km)
X 0.0394 = Inches (in)
X 3.281 = Feet (ft)
X 0.621 = Miles
Volume (capacity)
Cubic inches (cu in; in3)
Imperial pints (Imp pt)
Imperial quarts (Imp qt)
Imperial quarts (Imp qt)
US quarts (US qt)
Imperial gallons (Imp gal)
Imperial gallons (Imp gal)
US gallons (US gal)
X 16.387 = Cubic centimetres (cc; cm3)
X 0.568 = Litres (I)
X 1.137 = Litres (I)
X 1.201 = US quarts (US qt)
X 0.946 = Litres (I)
X 4.546 = Litres (I)
X 1.201 = US gallons (US gal)
X 3.785 = Litres (I)
= Cubic inches (cu in: it?)
= Imperial pints (Imp pt)
= Imperial quarts (Imp qt)
0.061
1.76
0.88
0.833
1.057
0.22
0.833
0.264
= Imperial quarts (Imp qt)
= US auarts (US qt)
= Imperial gallons jlmp gal)
= Imperial gallons (Imp gal)
= US gallons (US gal)
Mass (weigh tl
Ounces (02)
Pounds (lb)
Force
Ounces-force (ozf; 02)
Pounds-force (Ibf; lb)
Newtons (N)
X 28.35 = Grams (g) X 0.035 = Ounces (02)
X 0.454 = Kilograms (kg)
X 2.205 = Pounds (lb)
X 0.278 = Newtons (N)
X 3.6
= Ounces-force (ozf; 02)
X 4.448 = Newtons (N) X 0.225 = Pounds-force (Ibf; lb)
x 0.1 = Kilograms-force (kgf; kg) X 9.81 = Newtons (N)
Pressure
Pounds-force per square inch
(psi; Ibf/in*; lb/k?)
Pounds-force per square inch
(psi: Ibf/in’: lb/in*)
Pounds-force per square inch
(psi; Ibf/in’; lb/in’)
Pounds-force per square inch
(psi: Ibf/in*; lb/in’)
Kilopascals (kPa)
X 0.070 = Kilograms-force per square
centimetre (kgf/cm’: kg/cm’)
X 0.068 =Atmospheres (atm)
X 0.069 = Bars
14.223
14.696
14.5
0.145
98.1
= Pounds-force per square inch
(psi; Ibf/in*: lb/in*)
= Pounds-force per square inch
(psi; Ibf/in’; lb/in’)
= Pounds-force per square inch
(psi: Ibf/in’; lb/in*)
= Pounds-force per square inch
(psi; Ibf/in*; lb/in’)
= Kilopascals (kPa)
X 6.895 = Kilopascals (kPa)
X 0.01 = Kilograms-force per square
centimetre (kgf/cm*: kg/cm’)
Torque (moment of force)
Pounds-force inches
(Ibf in; lb in)
Pounds-force inches
(Ibf in: lb in)
Pounds-force inches
(Ibf in: lb in)
Pounds-force feet (Ibf ft; lb ft)
Pounds-force feet (Ibf ft; lb ft)
Newton metres (Nm)
X 1 .152 = Kilograms-force centimetre
(kgf cm; kg cm)
X 0.1 13 = Newton metres’ (Nm)
X 0.083 = Pounds-force feet (Ibf ft; lb ft)
X 0.138 = Kilograms-force metres
(kgf m; kg m)
0.868
8.85
12
7.233
= Pounds-force inches
(Ibf in; lb in)
= Pounds-force inches
(Ibf in; lb in)
= Pounds-force inches
(Ibf in: lb in)
= Pounds-force feet (Ibf ft; lb ft)
0.738 = Pounds-force feet (Ibf ft; lb ft)
9.804 = Newton metres (Nm)
X 1.356 = Newton metres (Nm)
X 0.102 = Kilograms-force metres
(kgf m; kg m)
Power
Horsepower (hp)
Velocity (speed)
Miles per hour (miles/hr: mph)
Fuel consumption+
Miles per gallon, Imperial (mpg)
Miles per gallon, US (mpg)
X 745.7 = Watts (W) X 0.0013
= Horsepower (hp)
X 1.609 = Kilometres per hour (km/hr; kph) X 0.62 1 = Miles per hour (milesjhr; mph)
X 0.354 = Kilometres per litre (km/l) X 2.825 = Miles per gallon, Imperial (mpg)
X 0.425 = Kilometres per litre (km/l)
X 2.352 = Miles per gallon, US (mpg)
Temperature
Degrees Fahrenheit = (“C x 1.8) + 32 Degrees Celsius (Degrees Centigrade; T) = (OF - 32) x 0.56
*it is comnion practice to convert from miles per
gallon (mpg) to lhs/lOO khm&es (//f OOkm/,
where mpg (Imperial) x 1/l 00 km = 282 and mpg (US) x If1 00 km = 235