| Length | Multiply by | Area | Multiply by |
| Inches to Centimetres | 2.54 | Square Inches to Square Centimetres | 6.451 |
| Centimetres to Inches | 0.39 | Square Centimetres to Square Inches | 0.15 |
| Inches to Millimetres | 25.40 | Square Feet to Square Metres | 0.09 |
| Millimetres to Inches | 0.04 | Square Metres to Square Feet | 10.76 |
| Feet to Metres | 0.31 | Square Yards to Square Metres | 0.84 |
| Metres to Feet | 3.28 | Square Metres to Square Yards | 1.20 |
| Yards to Metres | 0.91 | Square Miles to Square Kilometres | 2.59 |
| Metres to Yards | 1.09 | Square Kilometres to Square Miles | 0.39 |
| Miles to Kilometres | 1.61 | Acres to Hectares | 0.40 |
| Kilometres to Miles | 0.62 | Hectares to Acres | 2.47 |
| Volume | Multiply by | Weight | Multiply by |
| Cubic Inches to Cubic Centimetres | 16.39 | Ounces to Grams | 28.35 |
| Cubic Centimetres to Cubic Inches | 0.06 | Grams to Ounces | 0.04 |
| Cubic Feet to Cubic Metres | 0.03 | Pounds to Kilograms | 0.45 |
| Cubic Metres to Cubic Feet | 35.32 | Kilograms to Pounds | 2.21 |
| Cubic Yards to Cubic Metres | 0.76 | Long Tons to Tonnes | 1.02 |
| Cubic Metres to Cubic Yards | 1.31 | Tonnes to Long Tons | 0.98 |
| Cubic Inches to Litres | 0.02 | Short Tons to Tonnes | 0.91 |
| Litres to Cubic Inches | 61.03 | Tonnes to Short Tons | 1.10 |
| Gallons to Litres | 4.55 | Gallons to Litres | 4.55 |
| Litres to Gallons | 0.22 | Litres to Gallons | 0.22 |
| US Gallons to Litres | 3.79 | US Gallons to Litres | 3.79 |
| Litres to US Gallons | 0.26 | ||
| Fluid Ounces to Cubic Millilitres | 30.77 | ||
| Cubic Millilitres to Fluid Ounces | 0.03 |
