ps,bhp,kw之间怎么换算?英寸和厘米呢?Nm和kg*m呢?

1kgm＝9.8Nm＝7.2313725lb-ft
1Nm=0.102kgm=0.7376lb-ft
1lb-ft=0.1382863kgm＝1.356Nm
1kgm > 1lb-ft > 1Nm
一标准大气压＝1.0339285kg/cm^2=1.0132499bar
1bar=1.0197162kg/cm^2=14.503774PSI
1kg/cm^2=0.980665bar=14.223344PSI
1PSI=0.06894757bar=0.070306955kg/cm^2
1bar > 1kg/cm^2 > 1PSI
1bar、1kg/cm^2和一标准大气压是基本相同的
1kw=1.341hp=1.36ps=102kgm/s
1hp=0.7457122kw=1.0141686ps=76.0626421kgm/s
1ps=0.7352941kw=0.9860294hp=74.9999987kgm/s
1kw > 1hp > 1ps > 1kgm/s