Conversion Factors
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A list of the most common conversion factors from the Imperial the MKS system of measurements
The following table shows the conversion factors for many of the units used in Engineering
| To Convert | Multiply by | Reciprocal |
| Radian to degrees | 57.30 | 0.01745 |
| Inches to metres | 0.0254 | 39.37 |
| Yards to metres | 0.9144 | 1.094 |
| Miles/hour to metres/second | 0.447 | 2.237 |
| Pounds to kilograms | 0.4536 | 2.205 |
| Pounds (force) to newtons | 4.45 | 0.225 |
| Kilograms (force) to newtons | 9.81 | 0.1019 |
| Newton-metres to lb ft | 0.738 | 1.355 |
| Newton-metres to g.cm | 1.019x10\^4 | 9.81x10-5 |
| Horsepower to ft.lb/min | 33,000 | 3.031x10-5 |
| Horsepower to kilowatts | 0.746 | 1.341 |
| Therms to Btu | 100,000 | 10-5 |
| Btu to kilogram-calories | 0.252 | 3.97 |
| Btu to kWh | 2.934x10-4 | 3409 |
| Ft.lb to Btu to joules | 1.356 | 0.7374 |
| Kilogram-calories to joules | 4187 | 2.388x10-4 |
| Joules to kWh | 0.2778z10-6 | 3,600,000 |
You can also use this online Conversion Calculator