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 6.54
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