Common Unit Conversion list
Length
| 1kilometre (km)=0.621(mile) |
1 meter(m)=3.281 foot(ft)=1.094 yard(yd) | 1 centimeter(cm)=0.394 inch(in) |
| 1(mile)=1.609 kilometer(km) | 1foot(ft)=0.3048 meter(m) | 1 inch(in)=2.54 centimeter(cm) |
| 1 nautical(n mile)=1.852kilometre(km) | 1 yard(yd)=0.9144 meter(m) | 1 foot(ft)=12 inch(in) |
| 1 yard(yd)=3 foot(ft) | 1(mile)=5280 foot(ft) | 1 nautical mile(n mile)=1.151(mile) |
Mass
| 1 ton(t)=1000 kilogram(kg)=2205 pound(lb)= 1.102 short ton(sh.ton)=0.934 long ton(long.ton) |
1 kilogram(kg)=2.205 pound(lb) | 1 short ton(sh.ton)=0.907 ton(t)=2000 pound(1b) |
| 1 long ton(long.ton)=1.016 ton(t) | 1 pound(lb)=0.454 kilogram(kg) | 1 ounce(oz)=28.350 gram(g) |
density
| 1 kilogram/meter3(kg/m3)=0.001 gram/centimeter3(g/cm3)=0.0624 pound/foot3(lb/ft3) | 1 pound/foot3(lb/ft3)=16.02 kilogram/meter3(kg/m3) | 1 pound/inch3(lb/in3)=27679.9 kilogram/meter3(kg/m3) |
| 1 pound/American gallon(lb/gal)=119.826 kilogram/meter3(kg/m3) | 1 pound/British(lb/gal)=99.776 kilogram/meter3(kg/m3) | 1 pound/(petroleum)tub(lb/bbl)=2.853 kilogram/meter3(kg/m3) |
| 1 Baume density=140/15.5℃ proportion-130 | API=141.5/15.5℃proportion-131.5 |
pressure
| 1Megapascal (MPa)=145 pound/inch2(psi) =10.2 kilogram/centimeter2(kg/cm2)=10(bar)=9.8 pressure atmosphere(at m) |
1pound/inch2(psi)=0.006895(MPa) =0.0703kilogram/centimeter2(kg/cm2)= 0.0689(bar)=0.068 atmos(at m) |
1(bar)=0.1(MPa)=14.503pound/inch2(psi)=1.0197kilogram/centimeter2(kg/cm2) =0.987atmos(at m) |
| 1atmos(at m)=0.101325(MPa)=14.696pound/inch2(psi) =1.0333kilogram/centimeter2(kg/cm2) =1.0133(bar) |
Area
| 1square kilometer(km2)=100 hectare(ha)=247.1 (acre)=0.386 square mile(mile2) |
1 square meter(m2)=10.764square inch(ft2) | 1(acre)=100square meter(m2) |
| 1hectare(ha)=10000square meter(m2)=2.471(acre) | 1 square mile(mile2)=2.590square kilometer(km2) | 1(acre)=0.4047 hectare(ha)=40.47* 10-3square kilometer(km2)=4047square meter(m2) |
| 1square inch(ft2)=0.093square meter(m2) | 1square inch(in2)=6.452 square centimeter(cm2) | 1square yard(yd2)=0.8361square meter(m2) |
size
| 1cubic meter(m3)=1000(liter) =35.315cubic foot(ft3)=6.290 tub(bbl) |
1cubic foot(ft3)=0.0283cubic meter(m3)=28.317liter(l) | 1 thousands cubic foot(mcf)=28.317cubic meter(m3) |
| 1million cubic foot(MMcf)=2.8317 ten thousand cubic meter(m3) | 10 a hundred million cubic foot(bcf)=2831.7 ten thousand cubic meter(m3) | 1trillion cubic foot(tcf)=283.17a hundred thousand square meter(m3) |
| 1 cubic inch(in3)=16.3871 cubic centimeter(cm3) | 1 acre·inch=1234cubic meter(m3) | 1 tub(bbl)=0.159cubic meter(m3)=42 American gallon(gal) |
| 1American gallon(gal)=3.785 litre(l) | 1American quart(qt)=0.946 litre(l) | 1American pint(pt)=0.473 litre(l) |
| 1 gill(gi)=0.118升(l) | 1 Britain gallon(gal)=4.546 litre(l) |
kinematic viscosity
| 1 inch2/second(ft2/s)=9.29030*10-2 metre2/second(m2/s) |
1 (St)=10-4meter2/second(m2/s) | 1 centistoke(eSt)=10-6meter2/second(m2/s)=1 milimeter2/second(mm2/s) |
dynamicviscosity
| 1(P)=0.1Pascal·second(Pa·s) | 1centipoise(cP)=10-3Pascal·second(Pa·s) | 1kilogram second/meter2=9.80505Pascal·second(Pa·s) |
| 1pound second/foot2(1bf·s/ft2)= 47.8803Pascal·second(Pa·s) |
power
| 1(N)=0.225pound(1bf)=0.102(kgf) | 1(kgf)=9.81(N) | 1(1bf)=4.45(N) |
| 1(dyn)=10-5(N) |
temperature
| K()=5/9(℉+459.67) | K=℃+273.15 | n℉=[(n-32)*5/9]℃ |
| n℃=(5/9·n+32)℉ | 1℉=5/9℃ |
heat-transfer coefficient
| 1(meter2·hour·℃)[kcal/ (m2·h·℃)]=1.6279 Watt/(meter2·)[W(m2·K)] |
1 BTU/(foot2·hour·℉) [Btu/(ft2·h·℉)]=5.67826 Watt/(meter2·)[W(m2·K)] |
1meter2·hour·℃/kilocalorie(m2·h·℃/kcal) =0.86000meter2·Kelvin/Watt(m2·K/W) |
| 1kilocalorie(meter2·hour)(kcal/m2·h) =1.16279 Watt/meter2(W/m2) |
heat conductivity
| 1(meter2·hour·℃)[kcal/(m2·h·℃)]=1.16279 W/(meter·)[W(m·K)] | 1 BTU/(foot2·hour·℉)[Btu/(ft2·h·℉)] =1.7303/(meter·Kelvin)[W(m·K)] |
specific volume
| 1/(kilogram·℃)[kcal/(kg·℃)]=1/(pound·℉)[Btu/(lb·℉)]=4186.8/(kilogram·Kelvin)[J/(kg·K)] |
heat work
| 1joule=0.10204kilogram·meter=2.778*10-7·小时=3.777*10-7=3.723*10-7=2.389*10-4=9.48*10-4 | 1(cal)=4.1868joule(J) | 1(Btu)=1055.06joule(J) |
| 1(kgf·m)=9.80665joule(J) | 1(ft·1bt)=1.35582joule(J) | 1(hp·h)=2.64779*106joule(J) |
| 1(UKHp·h) =2.68452*106joule(J) |
1小时(kw·h)=3.6*106joule(J) | 1kilocalorie=4186.75joule(J) |
power
| 1·meter/second(kgf·m/s) =9.80665(W) |
1(hp)=735.499(W) | 1卡/second(cal/s)=4.1868瓦(W) |
| 1(Btu/h)=0.293071(W) |
speed
| 1 inch/second(ft/s)=0.3048meter/second(m/s) | 1 mile/hour(mile/h)=0.44704meter/second(m/s) |
permeability
| 1darcy=1000milimcro darcy | 1 square centimeter(cm2)=9.81*107darcy |
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