Length (distance)
Inches x 25.4 = millimeters (mm) x 0.0394 = inches
Feet x 0.305 = meters (m) x 3.281 = feet
Miles x 1,609 = kilometers (km) x 0.621 = miles
Volume (capacity)
Cubic inches x 16.387 = cubic centimeters (see3) x 0.061 = cubic inches
English pints x 0.568 = liters (l) x 1.76 = English pints
English quarts x 1.137 = liters (l) x 0.88 = English quarts
English quarts x 1.201 = US quarts x 0.833 = English quarts
US quarts x 0.946 = liters (l) x 1.057 = US qts
English gallons x 4.546 = liters (l) x 0.22 = English gallons
Imperial gallons x 1.201 = US gallons x 0.833 = Imperial gallons
US gallons x 3.785 = liters (l) x 0.264 = US gallons
Weight (weight)
Ounces x 28.35 = grams (G) x 0.035 = ounces
Pounds x 0.454 = kilograms (kg) x 2.205 = pounds
Force
Ounces-force x 0.278 = newtons (H) x 3.6 = ounce-force
Pound-force x 4.448 = newtons (H) x 0.225 = lbf
Newtons (H) x 0.1 = kilogram-force (kgf) x 9.81 = newtons
Pressure
Pound-force per sq. inch x 0.070 = kilogram-force per sq. centimeter (kgf/cm2) x 14.223 = pounds-force per sq. inch
Pound-force per sq. inch x 0.068 = atmospheres (atm.) x 14.696 = pounds-force per sq. inch
Pound-force per sq. inch x 0.069 = bars (bar) x 14.5 = pounds-force per sq. inch
Pound-force per sq. inch x 6.895 = kilopascals (kPa) x 0.145 = pounds-force per sq. inch
Kilopascals x 0.01 = kilogram-force per sq. centimeter (kgf/cm2) x 98.1 = kilopascals
Millibars (mbar) x 100 = kilopascals (kPa) x 0.001 = millibars (mbar)
Millibars (mbar) x 0.0145 = pounds-force per sq. inch x 68.94 = millibars (mbar)
Millibars (mbar) x 0.75 = millimeters of mercury (mmHg Art.) x 1.333 = millibars (mbar)
Millibars (mbar) x 0.401 = inches of water x 2.491 = millibars (mbar)
millimeters of mercury (mmHg Art.) x 0.535 = inches of water x 1.868 = millimeters of mercury (mmHg Art.)
Inches of water x 0.036 = pounds-force per sq. inch x 27.68 = inches of water
Torque (moment of power)
Pound-force per inch x 1.152 = Kilogram-force per centimeter (kgsm) x 0.868 = pounds-force per inch
Fungo-forces per inch x 0.113 = newtons per meter (Nm) x 8.85 = pounds-force per inch
Pound-force per inch x 0.083 = Pound-force per foot x 12 = Pound-force per inch
Pound-force per foot x 0.138 = Kilogram-force per meter (kgcm) x 7.233 = pound-force per foot
Pound-force per foot x 1.356 = Newtons per meter (Nm) x 0.738 = pounds-force per foot
newtons per meter (Nm) x 0.102 = kilogram-force per meter (kgcm) x 9.804 = newtons per meter
Power
Horsepower x 745.7 = Watts (Tue) x 0.0013 = horsepower
Speed
Miles per hour x 1.609 = kilometers per hour (km/h) x 0.621 = miles per hour
Fuel consumption*
Miles per English gallon x 0.354 = kilometers per liter (km/l) x 2.825 = miles per English gallon
Miles per US gallon x 0.425 = kilometers per liter (km/l) x 2.352 = miles per gallon US
Temperature
Fahrenheit = (°C x 1.8) + 32 Degrees Celsius = (°F - 32) x 0.56
* Common practice is to convert miles per gallon to liters per 100 km (l/100 km), Where (miles/English gallon) X (l/100 km) = 282, and (miles/US gallon) X (l/100 km) = 235