Automotive Conversion Tables
Sorting out all of those units
Taken from 21st Century Performance, by Julian Edgar
Click on pics to view larger images
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Length
| To convert: |
to: |
multiply by: |
| Inches |
Millimetres |
25.4 |
| Centimetres |
Inches |
0.394 |
| Thousandths of an inch |
Millimetres |
0.0254 |
| Millimetres |
Thousandths of an inch |
39.4 |
| Feet |
Centimetres |
30.5 |
Mass
| To convert: |
to: |
multiply by: |
| Pounds |
Kilograms |
0.454 |
| Kilograms |
Pounds |
2.20 |
Area
| To convert: |
to: |
multiply by: |
| Square inches |
Square centimetres |
6.45 |
| Square centimetres |
Square inches |
0.155 |
| Square feet |
Square metres |
0.093 |
| Square metres |
Square feet |
10.8 |
Volume & Flow
| To convert: |
to: |
multiply by: |
| English gallons |
Litres |
4.55 |
| Litres |
English gallons |
0.220 |
| US gallons |
Litres |
3.79 |
| Litres |
US gallons |
0.264 |
| US gallons |
English gallons |
0.833 |
| English gallons |
US gallons |
1.20 |
| Cubic inches |
Cubic centimetres |
16.4 |
| Cubic centimetres |
Cubic inches |
0.061 |
| Cubic feet |
Cubic metres |
0.0283 |
| Cubic metres |
Cubic feet |
35.3 |
| Cubic feet per minute |
Cubic metres per hour |
1.70 |
| Cubic metres per hour |
Cubic feet per minute |
0.589 |
| Litres per hour |
English gallons per hour |
0.220 |
| English gallons per hour |
Litres per hour |
4.55 |
| Litres per hour |
US Gallons per hour |
0.264 |
| US gallons per hour |
Litres per hour |
3.79 |
| Litres per second |
Cubic metres per hour |
3.60 |
| Cubic metres per hour |
Litres per second |
0.278 |
| Litres per second |
Cubic feet per minute |
2.12 |
| Cubic feet per minute |
Litres per second |
0.472 |
| Litres per second |
Cubic feet per hour |
127 |
| Cubic feet per hour |
Litres per second |
0.00786 |
| Kilograms of air per second |
Pounds of air per second |
2.20 |
| Pounds of air per second |
Kilograms of air per second |
0.0454 |
| Pounds of air per second |
Kilograms of air per hour |
1630 |
| Kilograms of air per hour |
Pounds of air per second |
0.000612 |
| Pounds of air per second |
Pounds of air per hour |
3600 |
| Pounds of air per hour |
Pounds of air per second |
0.000278 |
| Kilograms of air per second |
Pounds of air per hour |
7940 |
| Pounds of air per hour |
Kilograms of air per second |
0.000126 |
Velocity
| To convert: |
to: |
multiply by: |
| Miles per hour |
Kilometres per hour |
1.61 |
| Kilometres per hour |
miles per hour |
0.622 |
| Metres per second |
Kilometres per hour |
3.60 |
| Kilometres per hour |
Metres per second |
0.278 |
| Metres per second |
Miles per hour |
2.24 |
| Miles per hour |
Metres per second |
0.447 |
Pressure
| To convert: |
to: |
multiply by: |
| Pounds per square inch |
Bar |
0.069 |
| Bar |
Pounds per square inch |
14.50 |
| Pounds per square inch |
Kilopascals |
6.90 |
| Kilopascals |
Pounds per square inch |
0.145 |
| Inches of mercury |
Kilopascals |
3.39 |
| Kilopascals |
Inches of mercury |
0.295 |
| Millimetres of mercury |
Kilopascals |
0.133 |
| Kilopascals |
Millimetres of mercury |
7.50 |
| Inches of water |
Kilopascals |
0.248 |
| Kilopascals |
Inches of water |
4.03 |
| Inches of water |
Pounds per square inch |
0.0361 |
| Pounds per square inch |
Inches of water |
27.69 |
| Centimetres of water |
Kilopascals |
0.0976 |
| Kilopascals |
Centimetres of water |
10.2 |
Power
| To convert: |
to: |
multiply by: |
| Horsepower |
Kilowatts |
0.746 |
| Kilowatts |
Horsepower |
1.34 |
| PS (Pferdestarke) |
Horsepower |
0.986 |
| Horsepower |
PS (Pferdestarke) |
1.01 |
| PS (Pferdestarke) |
Kilowatts |
0.735 |
| Kilowatts |
PS (Pferdestarke) |
1.36 |
Torque
| To convert: |
to: |
multiply by: |
| Foot-pounds |
Newton metres |
1.36 |
| Newton metres |
Foot-pounds |
0.738 |
| Kilogram metres |
Foot pounds |
7.23 |
| Foot pounds |
Kilogram metres |
0.138 |
| Kilogram metres |
Newton metres |
9.81 |
| Newton metres |
Kilogram metres |
0.102 |
Temperature
| To convert: |
to: |
: |
| Degrees Fahrenheit |
Degrees Celsius |
Subtract 32 and then multiply by 0.556 |
| Degrees Celsius |
Degrees Fahrenheit |
Multiply by 1.8 and then add 32 |
| Kelvin |
Degrees Celsius |
Subtract 273.15 |
| Degrees Celsius |
Kelvin |
Add 273.15 |
Fuel Consumption
| |
Divided by: |
Equals: |
| 282.48 |
Miles per English gallon |
Litres per 100 kilometres |
| 282.48 |
Litres per 100 kilometres |
Miles per English gallon |
| 235.21 |
Miles per US gallon |
Litres per 100 kilometres |
| 235.21 |
Litres per 100 kilometres |
Miles per US gallon |
Miscellaneous
| To convert: |
to: |
multiply by: |
| Pounds per inch |
Newtons per millimetre |
0.175 |
| Newtons per millimetre |
Pounds per inch |
5.71 |
| Kilograms per millimetre |
Pound per inch |
56.0 |
| Pounds per inch |
Kilograms per millimetre |
0.0179 |
| Metres per second, per second |
g |
0.102 |
| g |
Metres per second, per second |
9.81 |
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