Conversion Calculator

Our powerful and flexible conversion calculator will help you to quickly convert between metric and imperial values for length, area, volume, and weight.


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Conversion Factor

Length Multiply By
Inches to Centimetres 2.54
Centimetres to Inches 0.39
Inches to Millimetres 25.40
Millimetres to Inches 0.04
Feet to Metres 0.31
Metres to Feet 3.28
Yards to Metres 0.91
Metres to Yards 1.09
Miles to Kilometres 1.61
Kilometres to Miles 0.62


Area Multiply By
Square Inches to Square Centimetres 6.451
Square Centimetres to Square Inches 0.15
Square Feet to Square Metres 0.09
Square Metres to Square Feet 10.76
Square Yards to Square Metres 0.84
Square Metres to Square Yards 1.20
Square Miles to Square Kilometres 2.59
Square Kilometres to Square Miles 0.39
Acres to Hectares 0.40
Hectares to Acres 2.47


Volume Multiply By
Cubic Inches to Cubic Centimetres 16.39
Cubic Centimetres to Cubic Inches 0.06
Cubic Feet to Cubic Metres 0.03
Cubic Metres to Cubic Feet 35.32
Cubic Yards to Cubic Metres 0.76
Cubic Metres to Cubic Yards 1.31
Cubic Inches to Litres 0.02
Litres to Cubic Inches 61.03
Gallons to Litres 4.55
Litres to Gallons 0.22
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


Weight Multiply By
Ounces to Grams 28.35
Grams to Ounces 0.04
Pounds to Kilograms 0.45
Kilograms to Pounds 2.21
Long Tons to Tonnes 1.02
Tonnes to Long Tons 0.98
Short Tons to Tonnes 0.91
Tonnes to Short Tons 1.10