国际常用单位换算表

1、 1km2=100ha=247.1acre=0.386mile21m2=10.764ft21in2=6.452cm21ha=10000m2=2.471acre1acre=0.4047ha=4.04710-3km2=4047m21acre=0.4047ha=4.04710-3km2=4047m21ft2=0.093(m2)1m2=10.764ft21yd2=0.8361m21mile2=2.590km21=151=666.67. 1gi=0.1181 1pt=0.47311qt=0.9461 1gal=3.78511bbl=0.159m3=42gal 11234m31in3=16.3871cm3

2、 1gal=4.546110bcf=2831.7m3 1tcf=283.17m31MMcf2.8317m3 1mcf=28.317m31ft3=0.0283m3=28.317liter1m3=1000liter=35.315ft3=6.29bbl 1km=0.621mile 1m=3.281ft=1.094yd1cm=0.394in 1in=2.54cm1n mile=1.852km 1fm=1.829m1yd=3ft 1rad=16.5ft1mile=1.609km 1ft=12in1mile=5280ft 1n mile=1.1516mile 1long ton=1.016t 1kg=2.

3、205lb1lb=0.454kg 1oz=28.350(g)1sh.ton=0.907t=2000lb1t=1000kg=2205lb=1.102sh.ton=0.984long ton 1/3lb/ft3=16.02/3kg/m3API141.5/15.5131.51/lb/gal=99.776/3kg/m31B140/15.51301/3lb/in3=27679.9/3kg/m31/lb/gal=119.826/3kg/m31/lb/bbl=2.853/3kg/m31/3kg/m3=0.001/3g/cm3=0.0624/3lb/ft3 1St=10-42/m2/s=12/cm2/s12/

4、ft2/s=9.2903010-22/m2/s1cSt=10-62/m2/s=12/mm2/s 1P0.1Pas 1cP=10-3Pas1/2lbfs/ft2=47.8803Pas1/2kgfsm2=9.80665Pas 1N0.225lbf=0.102kgf1kgf=9.81N1lbf=4.45N 1dyn=10-5N K5/9F+459.67 K=+273.15n=(5/9n+32) F nF=(n-32)5/91F=5/9 1bar=105Pa 1/2dyn/cm2=0.1Pa1Torr=133.322Pa 1mmHg=133.322Pa1mmH2O=9.80665Pa 1=98.066

5、5kPa1kPa=0.145/2psi=0.0102/2kgf/cm2 =0.0098atm1/2psi=6.895kPa=0.0703/2kg/cm2=0.0689bar=0.068atm1atm=101.325kPa=14.696/2psi=1.0333bar 1/2kcal/m2h=1.16279/2w/m21/21kcal/(m2h)1.16279/2w/(m2K)1/2FBtu/(ft2hF)=5.67826/2w/m2K12/m2h/kcal=0.860002/m2K/W 1kcal/(mh)1.16279/W/(mK)1/FBut/(fthF) 1.7303/W/(mK) 1/k

6、cal/(kg)1/FBtu/(lbF)4186.8/J/kgK 1cal=4.1868J 1=4186.75J1kgfm=9.80665J1Btu1055.06J1kWh=3.6106J1ftlbf=1.35582J1hph=2.64779106J1UKHph=2.6845210610.102042.7781073.7771073.7231072.389104=9.48104 1/Btu/h=0.293071W1/kgfm/s=9.80665w1/cal/s4.1868W 1hp=735.499W 1/mile/h=0.44704/m/s1/ft/s=0.3048/m/s 11000 1cm29.81107 1F/1001.8/100/m1/2.9F/F/mile=0.055F/100F/ft 1bbl=0.14t1/tcfd =283.2/m3/d=10.336/m3/a10/bcfd=0.2832/m3/d =103.36/m3/a1/MMcfd=2.832/m3/d=1033.55/m3/a1/Mcfd=28.32/m3/d=1.0336/m3/a1/bpd=50/t/a1t=7.3bbl() 1/cu