Metric and Imperial Conversions

Some useful conversion (imperial, metric), length, area, capacity, weight, US measures and temperture factors.

Length

1 centimetre (cm) = 10 millimetres (mm) = 0.3937 inches (in)
1 decimetre (dm) = 10 cm = 3.937 inches
1 metre (m) = 10 dm = 100 cm = 1.0936 yards (yds)
1 kilometre (km) = 1000 m = 0.6214 miles (M)
     
1 inch (in) = 2.54 cm
1 foot (ft) =12 inch = 30.48 cm
1 yd = 3 ft = 36 in = 0.9144 m
1 mile =1760 yd = 1.6093 km


Area

1 sq cm = 100 sq mm = 0.155 sq in
1 sq metre = 10,000 sq cm = 1.196 sq yd
1 sq km = 100 hectares (ha) = 0.3861 sq mile
     
1 sq inch   = 6.4516 sq cm
1 sq yard = 9 sq ft = 0.8361 sq m
1 sq mile = 640 acres = 2.59 sq km


Capacity and volumes

1 cubic centimetres (cc)   = 0.0610 cu inch
1 cu metre = 1000 cu decimetres = 1.3080 cu yds
1 litre (l) = 1 cu dm = 1000 cc = 0.2200 imperial gallons (gal)
1 hectolitre (hl) = 100 litre (l) = 21.997 gallon (gall)
     
1 cubic inch   = 16.387 cubic centimetres (cc)
1 cubic ft = 6.23 gall = 49.86 pints = 28.33 litre (l)
1 cu yard = 27 cu ft = 0.7646 cu m
1 imperial pint (pt) = 20 fluid ounces (fl oz) = 0.5683 litre (l)
1 gallon (gall) = 8 pt = 0.16 cu ft = 4.546 litre (l)


Weight

1 gram (g) = 1000 milligram (mg) = 0.0353 ounce (oz)
1 kilogram (kg) = 1000 gram (g) = 2.2046 pounds (lb)
1 tonne (t) = 1000 kilogram (kg) = 0.9842 ton
     
1 ounce (oz) = 437.5 grains = 28.35 gram (g)
1 pound (lb) = 16 ounce (oz) = 0.4536 kilogram (kg)
1 ton = 20 hundredweight (cwt) = 1.016 tonne

US measures

1 US dry pint = 33.6 cubic inches (cu in) = 0.5506 litre (l)
1 US liquid pint = 0.8327 imperial pint = 0.4732 litre (l)
1 US gallon = 0.8327 imperial gallon = 3.785 litre (l)
1 short hundredweight (cwt) = 100 pounds (lb) = 45.359 kilogram (kg)
1 short ton = 2000 pounds (lb) = 907.19 kilogram (kg)

Temperature

degree C degree F
0 32
5 41
20 68
30 86
40 104
50 122
60 140
70 158
80 176
90 194
100 212

Temperature conversion: (Celsius & Fahrenheit)

degrees C = (degrees F - 32) * 5/9

degrees F =(degree C * 9/5) + 32

Absolute temperature (refered to as Kelvin) is equivalent to °C+273.15°C or °F+459.67 °F. Degrees Kelvin, is written without the ° symbol, just K.