Useful Conversion Factors
| To Convert | Multiply By |
|---|---|
| Inches to Millimeters | 25.4 |
| Inches to Centimetres | 2.54 |
| Centimetres to Inches | 0.3937 |
| Feet to Metres | 0.3048 |
| Metres to Feet | 3.2808 |
| Yards to Metres | 0.9 |
| Miles to Kilometres (km) | 1.6 |
| Sq inch to Sq centimetre | 6.5 |
| Sq feet to Sq metre | 0.09 |
| Sq yard to Sq metre | 0.8 |
| Pounds to Kilograms | 0.4536 |
| Kilograms to Pounds | 2.205 |
| Degrees F to Degrees C | Subtract 32 & Multiply by 5/9 |
| Degrees C to Degrees F | Multiply by 9/5 & Add 32 |