Imperial Units |
Metric Units |
Imperial - Metric |
Metric - Imperial |
LENGTH |
inch(in)
foot(ft)
yard(yd)
Furlong(fur)
Mile
(for navigation) |
Millimetre(mm)
Centime(cm)
Metre (m)
Kilometre(km)
International nautical mile
(n mile ) |
1 in=25.4mm
1 ft=30.5
1 yd=0.914m
1 fur=201m
1 mile=1.61km
in mile=1852m |
1 cm=0.394in
1 m=3.28ft
1 m=1.09yd
1 km=4.97fur
1 km=0.621mile |
WEIGHT |
Ounce
Pound
Stone
Ton |
Gram(g)
Kilogram(kg)
Ton(t) |
1 oz=28.3g
1 lb=454g
1 stone=6.35kg
1 ton=1.021 |
1 g=0.03527 oz
1 kg=2.20 lb
1 kg=0.157 stone
1 t=0.984 ton |
AREA |
Square inch(in²)
Square foot(ft²)
Square yard(yd²)
Acre(ac)
Square mile |
Square centimeter(cm²)
Square metre(m²)
Metre(m)
Hectare(ha)
Square kilometre(km²) |
1 in²=6.45cm²
1 ft²=929cm²
1 yd²=0.836cm²
1 ac²=0.405ha
1 square mile=2.59km² |
1 cm²=0.155in²
1 m²=10.8ft²
1 m²=1.20yd²
1 ha=2.47ac
1 km²=0.386 square mile |
VOLUME |
Cubic inch(in3)
Cubic foot(ft3)
Cubic yard(ya3)
Bushel(bus) |
Cubic centimetre(cm3)
Cubic metre(m3) |
1 in3=16.4cm3
1 ft3=0.0283m3
1 yd3=0.765m3
1 bus=0.346m3 |
1 cm3=0.610in3
1 m3=34.3 ft3
1 m3=1.31 yd3
1 m3=27.5 bus |
VOLUME(FLUIDS) |
Fluid punce(floz)
Pint(pt)
Gallon(gal) |
Millilitre(ml)
Liter(l)
Cubic metre (m3) |
1 floz=28.4ml
1 pt=568ml
1 gal=4.55 liter |
1 ml=0.0352floz
1 liter=1.76pt
1 m3=220gal |
FORCE |
Pound force(lbf)
Ton force(tonf) |
Newton(N)
Kilo Newton(KN) |
1 lbf=4.55n
1 tonf=9.96kn |
1 n=0.225 lbf
1 kn=0.100tonf |
PRESSURE |
Pound per square inch(psi)
atmosphere(atm)
ton per square inch(ton/in²)
inch of mercury(in Hg)
|
Kilopascal(kpa)
Megapascal(mpa)
Millibar(mb) |
1 psi=6.89 kpa
1 atm=101kpa
1 ton/in²=15.4 mpa
1 inHg=33.9mb(1 mb=100pa) |
1 kpa=0.145psi
1 mpa=9.87atm
1 mpa=0.0647tpm/in²
1mb=0.0295inHg |
VELOCITY |
Mile perhour(mph) |
Kilometer per hour(km/h)
Knot(kn) |
1 mbh=1.61km/h
1 kn=1.85km/h |
1 km/h=0.621 mph |
TEMPERATURE |
Degree Fahrenheit(F) |
Degree Celsius(℃) |
℃=5/9(°F-32) |
F=9x。C/5+32 |
Density |
Pound per cubic inch(lb/in3)
ton per cubic yard |
Gram per cubic centlmetre(g/cm3)
tonne per cubic metre(t/m3)
tonne per cubic meter(t/m3) |
1in/in3=27.7g/cm3
1 lb/in3=27.7t/m3
1ton/yd3=1.33t/m3 |
1 g/ cm3=0.0361 lb/in3
1 t/m3=0.0364 lb/in3
1 t/m3=0.752 ton/yd3 |
