## Conversion Factors

Resorces

Inches to Millimetres multiply by 25.4

Inches to Centimetres multiply by 2.54

Feet to Centimetres multiply by 30.48

Feet to Metres multiply by 0.3048

Yards to Metres multiply by 0.9144

Miles to Metres multiply by 1,609.3

Miles to Kilometres multiply by 1.609

Nautical Miles to Metres multiply by 1,853.27

Sq. Inches to Sq. Millimetres multiply by 645.160

Sq. Inches to Sq. Centimetres multiply by 6.452

Sq. Feet to Sq. Metres multiply by 0.0929

Sq. Yards to Sq. Metres multiply by 0.835

Sq. Miles to Sq. Kilometres multiply by 2.590

Acres to Sq. Kilometres multiply by 0.004047

Acres to Hectares multiply by 0.4047

Cubic Inches to Cubic Centimetres multiply by 16.36

Cubic Feet to Cubic Metres multiply by 0.03

Cubic Yards to Cubic Metres multiply by 0.76

Cubic Inches to Litres multiply by 0.01639

Grains to Grammes multiply by 0.648

Ounces to Grammes multiply by 28.35

Pounds to Grammes multiply by 453.6

Pounds to Kilogrammes multiply by 0.4536

Cwt to Kilogrammes multiply by 1,016

Tons to Kilogrammes multiply by 1.016

Tons to Tonnes multiply by 1.016

Pints to Litres multiply by 0.5682

Imperial Gallons to Litres multiply by 4.546

Fahrenheit to Centigrade minus 32 degrees multiply by 0.5555

Imperial to Metric

Millimetres to Inches multiply by 0.03937

Centimetres to Inches multiply by 0.3937

Centimetres to Feet multiply by 0.0328

Metres to Feet multiply by 3.281

Metres to Yards multiply by 1.094

Metres to Miles multiply by 0.000621

Kilometres to Miles multiply by 0.6214

Metres to Nautical Miles multiply by 0.000539

Sq. Millimetres to Sq. Inches multiply by 0.001550

Sq. Centimetres to Sq. Inches multiply by 0.155

Sq. Metres to Sq. Feet multiply by 10.764

Sq. Metres to Sq. Yards multiply by 1.196

Sq. Kilometres to Sq. Miles multiply by 0.3861

Sq. Kilometres to Acres multiply by 247.1

Hectares to Acres multiply by 2.471

Cubic Centimetres to Cubic Inches multiply by 0.061

Cubic Metres to Cubic Feet multiply by 35.3

Cubic Metres to Cubic Yards multiply by 1.316

Litres to Cubic Inches multiply by 61.03

Grammes to Grains multiply by 15.43

Grammes to Ounces multiply by 0.03527

Grammes to Pounds multiply by 0.002205

Kilogrammes to Pounds multiply by 2.205

Kilogrammes to Cwt multiply by 0.01968

Kilogrammes to Tons multiply by 0.0009842

Tonnes to Tons multiply by 0.9842

Litres to Pints multiply by 1.76

Litres to Imperial Gallons multiply by 0.22

Centigrade to Fahrenheit multiply by 1.8 add 32 degrees