1、长度1米(m)=3.2808(ft)1英尺(ft)=0.3048(m)=12(in)1英寸(in)=25.4(mm)1英里(mile)=1609.344(m)1海里(nmile)=1852(m)2、重量1千克(kg)=2.2046226磅(lbf)1磅(lbf)=0.4535924千克(kg)1吨(t)=1000千克(kg)3、体积1立方米(m3)=6.28978(bbl)1升(L)=0.264172(gal)1美加仑(gal)=3.78541(L)1美桶(bbl)=158.988(L)=42.02(gal)4、力1千克力(kgf)=2.2046(lbf)=9.81(N)1磅力(lbf)=0.453592(kgf)5、密度1克/立方厘米(g/cm3)=8.3454(ppg)=350.508(lb/bbl)1磅/加仑(ppg)=0.119826(g/cm3)6、压力1千克力/平方厘米(kgf/cm2)=14.2233(psi)=0.0981(MPa)1兆帕(Mpa)=145.037(psi)=10.197(KSC)1巴(bar)=0.1(Mpa)1标准大气压(atm)=0.10132