Do you Know ?

[Perfection]

Length

1 mile = 1.609 km
1 yard = 0.9144 m
1 foot = 0.3048 m
1 inch = 25.4 mm

1 km = 0.6214 mile
1 m = 1.0936 yard
1 m = 3.2808 feet
1 mm = 0.0394 inch

Area

1 sq. mile = 2.59 km2
1 acre = 0.4047 hectare
1 acre = 4046.86 m2
1 sq. yard = 0.8361 m2
1 sq. foot = 0.0929 m2
1 sq. inch = 645.16 mm2

1 km2 = 0.3861 mile2
1 km2 = 247.105 acre
1 hectares = 2.4711 acre
1 m2 = 10.7639 feet2
1 mm2 = 0.0016 inch2

[Perfection]

Volume

1 gallon = 4.5461 litre
1 US gallon = 3.785 litre
1 pint = 0.5683 litre
1 cu. inch = 16.3871 cm3

1 litre = 0.22 gal
1litre = 0.2642 US gal
1 litre = 1.7598 pint
1 m3 = 219.969 gal
1 m3 = 35.3147 feet3

Weight

1 ton = 1.016 tonne
1 lb. = 0.4536 kg
1 oz. = 28.3495 g
1 US ton = 0.9072 tonne

1 tonne = 0.9842 ton
1 tonne = 1.1023 US ton
1 kg = 2.2046 lb.
1 kg = 35.274 oz.

Temperature conversion

deg. F= deg. C x 9/5 + 32

International Symbols

Mass : kg (kilogram)
Length : m (metre)
Time : s (second)
Volume : l (litre)
Luminous intensity : candela
Electric current : A (ampere)
Molar volume : mol (mole)
Force : N (newon)
Power : W (watt)