Length (Unit of
length of S.I. = meter)
US & Imperial
>>: Metric system
Metric system >>
US & Imperial
1 Inch (in) - US
25.40005 mm
1 millimeter (mm)
0.03937 in (US)
1 Inch (in) - Imp
25.39996 mm
1 millimeter (mm)
0.03937 in (imp)
1 Foot (ft) = (12.in) - US
0.3048006 m
1 meter (m)
3.28083 ft (US)
1 Foot (ft) = (12.in) - Imp
0.3047995 m
1 meter (m)
3.28083 ft (imp)
1 Yard (yd) = (3.ft)
- US
0.9144018 m
1 meter (m)
1.093611 yd (US)
1 Yard (yd) = (3.ft) - Imp
0.9143984 m
1 meter (m)
1.093611 yd (imp)
1 Mile (mi) = (1760.yd)
- US
1.609347 km
1 kilometer (km)
0.6213699 mi (US)
1 Mile (mi) = (1760.yd) - Imp
1.609341 km
1 kilometer (km)
0.6213724 mi (imp)
1 Nautical mile (imp)
1.853181 km
1 kilometer (km)
0.5396127 n.mi (imp)
Surface (the unit
of area of S.I. = square meter)
US & Imperial
>> Metric system
Metric system >>
US & Imperial
1 Acre - US
0.4046873 ha
1 hectare (ha)
2.471044 acre (US)
1 Acre - Imp
0.4046842 ha
1 hectare (ha)
2.4711 acre (imp)
1 Square inch (sq in) - US
6.451626 cm2
1 Square centimeter (cm2)
0.1549997 sq. in (US)
1 Square inch (sq in) - Imp
6.451578 cm2
1 Square centimeter (cm2)
0.1550 sq.in (imp)
1 Square foot (sq ft) = 144 sq in
- US
0.09290341 m2
1 Square meter (m2)
10.76387 sq.ft (US)
1 Square foot (sq ft) = 144 sq in
- Imp
0.09290272 m2
1 Square meter (m2)
10.7639 sq.ft (imp)
1 Square yard (sq yd) = 9 sq.ft -
US
0.8361307 m2
1 Square meter (m2)
1.195985 sq.yd (US)
1 Square yard (sq yd) = 9 sq.ft -
Imp
0.8361245 m2
1 Square meter (m2)
1.1960 sq.yd (imp)
1 Square mile (sq mi) = 640 acres
- US
2.589998 km2
1 Square kilometer (km2)
0.3861006 sq.mi (US)
1 Square mile (sq mi)
= 640 acres - Imp
2.589979 km2
1 Square kilometer (km2)
0.3861 sq.mi (imp)
Volume (the unit
of volume of S.I. = cubic meter)
US/imp >> Metric system
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Metric system >> US/imp
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Volume
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1 Cubic inch (cu in) - US
16,3871 cm3
1 Cubic centimeter (cm3)
0.06102509 cu in (US)
1 Cubic inch (cu in)
- Imp
16.38698 cm3
1 Cubic centimeter (cm3)
0.0610241 cu in (imp)
1 Cubic foot (cu ft)
- US
28.31702 dm3
1 Cubic decimeter (dm3)
0.03531544 cu ft (US)
1 Cubic foot (cu ft - (Imp)
28.31670 dm3
1 Cubic decimeter (dm3)
0.0353148 cu ft (imp)
1 Cubic yard (cu yd) - US
0.7645594 m3
1 Cubic meter (m3)
1.307943 cu yd (US)
1 Cubic yard (cu yd)
- Imp
0.7645509 m3
1 Cubic meter (m3)
1.307957 cu yd (imp)
Measure
of capacity
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1 fluid ounce (fl oz) - US
29,5735 cm3 (or ml)
1 Cubic decimeter (dm3)
33.814 fl oz
1 fluid ounce (fl oz) - Imp
28,4131 cm3 (or ml)
1 Cubic decimeter (dm3)
35.195 fl oz
1 Bushel (US)
35.23829 dm3 (or litre)
1 Cubic decimeter (dm3)
0.0283782 bu (US)
1 Bushel (imp)
36.36770 dm3 (or liter)
1 Cubic decimeter (dm3)
0.02749692 bu (imp)
1 Gallon (US)
3.785329 dm3 (or liter)
1 Cubic decimeter (dm3)
0.2641779 gal (US)
1 Gallon (imp)
4.545963 dm3 (or liter)
1 Cubic decimeter (dm3)
0.2199754 gal (imp)
1 Liquid pint (US)
0.4731661 dm3 (or liter)
1 Cubic decimeter (dm3)
2.113423 liq.pt (US)
1 Pint(pt) = 20 fl oz
- Imp
0.5682454 dm3 (or liter)
1 Cubic decimeter (dm3)
1.759803 pt (imp)
Mass (the
unit of mass of S.I. = kilogram)
Attention not to confuse mass and weight.
The mass (kg) is a intrinsic characteristic of the body and
is measured in kilogram.
Masse spécifique ou volumique = quotient de la masse
d'un corps par son volume.
Specific mass = quotient of the mass of a body by its volume
Weight is a force which depends on terrestrial attraction
and it is the equivalent of the mass of a body by the acceleration
of gravity (9.80665 at the sea level) and is measured in Newton
[ N ].
For example a man of 75 kg (it is its mass, and not its weight
contrary to the current expression), has a weight of: 75 *
9.80665 = 735,5 N on the sea level.
US/imp >>
Metric system
Metric system >>
US/imp
1Grain (gr) - US
64.79892 mg
1 milligram (mg)
0.01543236 gr (US)
1Grain (gr) - Imp
64.79892 mg
1 milligram (mg)
0.01543236 gr (imp)
1Ounce (oz) - US
28.34953 g
1 gram (g)
0.03527396 oz av. (US)
1Ounce (oz) - Imp
28.34953 g
1 gram (g)
0.03527396 oz av. (imp)
1Pound (Ib) = 16 oz - US
0.4535924 kg
1 kilogram (kg)
2.204622 lb av. (US)
1Pound (Ib) = 16 oz - Imp
0.4535924 kg
1 kilogram (kg)
2.204622 lb av. (imp)
1Short hundredweight(sh cwt)= 100
Ib - US
45.35924 kg
1kilogram (kg)
0.02204622 sh.cwt (US)
1Cental (imp)
45.35924 kg
1 kilogram (kg)
0.02204622 ctl (imp)
1Long ton (l tn) = 2240 Ib - US
1.016047 t
1 ton
0.9842064 l.tn (US)
1Ton (imp)
1.016047 t
1 ton
0.9842064 tn (imp)
Specific Gravity
The density of gas, relative to air, is called specific gravity.
The specific gravity of air is defined as 1. Since propane gas has
a specific gravity of 1.5, propane-air mixtures have a specific
gravity of greater than 1.
Any recopy of these tables on another website or in another form of
publication is completely forbidden.
Last update : June 2003
