To use this chart:
From X Multiplier = Into
Into X Reciprocal = From
| From Into | Multiplier | Reciprocal | |
|---|---|---|---|
| Inches | Millimeters | 25.4 | 0.0394 |
| Length | |||
| 1/8ths of inches | Millimeters | 3.175 | 0.315 |
| 1/16ths of inches | Millimeters | 1.587 | 0.630 |
| Inches | Meters | 0.0254 | 39.37 |
| Feet | Meters | .3048 | 3.281 |
| Yards | Meters | .914 | 1.094 |
| Miles | Kilometers | 1.609 | 0.621 |
| Sea Miles | Meters | 1852 | 0.000539 |
| Miles | Meters | 1609.3 | 0.000621 |
| Area | |||
| Square inches | Square centimeters | 6.4516 | 0.155 |
| Square feet | Square meters | 0.0929 | 10.764 |
| Volume | |||
| Cubic inches | Cubic centermeters | 16.387 | 0.061 |
| Cubic inches | Liters | 0.016 | 62.5 |
| Cubic feet | Cubic meters | 0.028 | 35.315 |
| Cubic yards | Cubic meters | 0.765 | 1.308 |
| Imperial gallons | Liters | 4.546 | 0.220 |
| USA gallons | Liters | 3.785 | 0.264 |
| Imperial gallons | USA gallons | 1.205 | 0.830 |
| Weight | |||
| Grams | Ounces | 0.035 | 28.35 |
| Pounds (lbs.) | Kilograms | 0.454 | 2.205 |
| Hundredweights (cwt) | Kilograms | 50.802 | 0.020 |
| Tons | French tonnes | 1.016 | 0.984 |
| Density | |||
| Pounds per cubic foot | Kilograms per cubic meter | 16.019 | 0.0624 |
| Speed | |||
| Kilometers per hour | Meters per second | 0.278 | 3.6 |
| Meters per second | Knots | 1.943 | -- |
| Feet per second | Meters per second | 0.305 | 3.281 |
| Feet per second | Miles per hour | 0.682 | 1.467 |
| Feet per minute | Kilometers per hour | 0.018 | 54.68 |
| Miles per hour | Meters per second | 0.447 | 2.237 |
| Miles per hour | Kilometers per hour | 1.609 | 0.621 |
| Knots | Miles per hour | 1.151 | -- |
| Horsepower (hp) | kilowatts (kW) | 0.746 | 1.341 |