Conversion factors

Length (distance)

• Inches (in) x 25.4 = Millimeters (mm) x 0.0394 = Inches (in)
• Feet (ft) x 0.305 = Meters (m) x 3.281 = Feet (ft)
• Miles x 1.609 = Kilometers (km) x 0.621 = Miles

Volume (capacity)

• Cubic inches (cu in) x 16.387 = Cubic centimeters (see³) x 0.061 = Cubic inches (cu in)
• Imperial pints (Imp pt) x 0.568 = Liters (l) x 1.76 = Imperial pints (Imp pt)
• Imperial quarts (Imp qt) x 1.137 = Liters (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)
• American quarts (US qt) x 0.946 = Liters (l) x 1.057 = US quarts (US qt)
• Imperial gallons (Imp gal) x 4.546 = Liters (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 = Liters (l) x 0.264 = US gallons (US gal)

Weight (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

• Ounce-force (ozf;) x 0.278 = Newtons (N) x3.6 = Ounce-force (ozf;)
• Pound-force (Ibf;) x 4.448 = Newtons (N) x 0.225 = Pound-force (Ibf;)
• Newtons (N) x 0.1 = Kilogram-force (kgf) x9.81 = Newtons (N)

Pressure

• Pound-force per square inch (lbf/in²) x 0.070 = Kg-force per square centimeter (kgf/cm²) x 14.223 = Pounds per square inch (lbf/in²)
• Pound-force per square inch (lbf/in²) x 0.068 = Atmospheres (atm) (lbf/in²) x 14.696 = Pounds per square inch
• Pound-force per square inch (lbf/in²) x 0.069 = Bars (lbf/in²) x 14.5 = Pounds per square inch
• Pound-force per square inch (lbf/in²) x 6.895 = Kilopascals (kPa) (lbf/in²) x 0.145 = Pounds per square inch
• Kilopascals (kPa) centimeter (kgf/cm²) x 0.01 = Kg-force per square x 98.1 = Kilopascals (kPa)
• Millibar (mbar) x 100 = Pascals (Pa) x 0.01 = Millibar (mbar)
• Millibar (mbar) (Ibf/in²) x 0.0145 = lbf per square inch x 68.947 = millibar (mbar)
• Millibar (mbar) x 0.75 = mmHg (mmHg.) x 1.333 = Millibar (mbar)

Power

• Horsepower (hp) x 745.7 = Watts (W) x 0.0013 = Horsepower (hp)

Speed

• Miles per hour (miles/hour) x 1.609 = Kilometers per hour (km/hour) x 0.621 = Miles per hour (miles/hour)

Fuel consumption*

• Miles per British gallon (Imperial, mpg) x 0.354= Kilometers per liter (km/l) x 2.825 = Miles per British gallon (Imperial,mpg)
• Miles per US gallon (US, mpg) x 0.425 = Kilometers per liter (km/l) x 2.352 = Miles per US gallon (US, mpg)

Temperature

• Degrees Fahrenheit= (°C x 1.8) + 32
• Degrees Celsius (°C) = (°F - 32) x 0.56