Conversion Factors

length
1 cm = 0.3937 in 1 in = 2.54 cm
1 m = 3.2808 ft 1 ft = 0.3048 m
1 m = 1.0936 yd 1 yd = 0.9144 m
1 km = 0.6214 mile 1 mile = 1.6093 km
area
1 cm2 = 0.155 in2 1 in2 = 6.4516 cm2
1 m2 = 10.764 ft2 1 ft2 = 0.0929 m2
1 m2

= 1.196 yd2

1 yd2

= 0.8361 m2

1 hectare = 2.4711 acres

1 acre

= 0.40469 hectare
1 km2 = 0.3861 miles2

1 mile2

= 2.59 km2
volume
1 cm3 = 0.061 in3 1 in3 = 16.387 cm3
1 m3 = 35.3147 ft3 1 ft3 = 0.0283 m3

1 m3

= 1.308 yd3

1 yd3

= 0.7646 m3
volume (fluids)
1 ml = 0.0352 fl oz 1 fl oz = 28.4 ml
1 litre = 1.76 pints 1 pint = 0.5683 litres
1 litre = 0.22 gallon 1 gallon = 4.5461 litres
1 m3

= 220 gallons

1 gallon = 0.004546 m3
mass
1 g = 0.0353 oz 1 oz = 28.35 g

1 kg

= 2.2046 lb

1 lb

= 0.4536 kg
1 kg = 0.1575 stone 1 stone = 6.3503 kg

1 tonne

= 0.9842 ton 1 ton = 1.016 tonnes
pressure
1 bar

  = 14.513 psi

1 psi = 0.0689 bar
1 KN/m2 = 0.01 bar 1 bar = 100.068 KN/m2
         
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