1、压力单位:
1psi=6.89KPa | 1kgf/cm2=98.07KPa | 1bar=100KPa |
1bar=14.5psi | 1atmosphere=98.1KPa | 1cm water=97.89Pa |
1mm mercury=133.3Pa | 1in mercury=3.39KPa | 1Torr=133.3Pa |
1ft Water=0.0298bar | 1bar=33.33ft Water |
2、长度单位:
1in=25.4mm | 1ft=0.3048m | Mile=1609.3m |
1micron=10-6m |
3、质量单位:
1lb=453.6g | 1cwt=50.8kg | 1ton(imp)=1016kg |
1ton(us)=907.2kg | 1tonne=1000kg |
4、力矩单位:
1in-lb=0.113 N-m | 1ft-lb=1.356N-m | 1kg-m=9.807N-m |
1ft.poundal=0.0421N-m |
5、温度单位:
(○F-32)×5/9= ℃ | K-273.15 = ℃ |
6、面积单位:
1in2=6.45 cm2 | 1in2=0.093m2 |
7、体积单位:
1litre=0.001 m3 | 1cu.ft=0.0283 m3 | 1cu.in=16.39 cm3 |
1gal(imp)=4.546 L | 1gal(us)=3.79 L | 1fluid oz(imp)=28.41mL |
1fluid oz(us)=29.57mL |
8、力单位:
1lbf=4.45N | 1kgf=9.81N | 1kp(kilopond)=9.81N |
1poundal=138.3mN |
9、功率单位:
1lb-ft/sec=1.356W | 1kg-m/sec=9.807W | 1N-m/sec=1W |
1H.P(imp)=745.7W |
10、功及能量单位:
1lb.ft=1.356 J | 1N.m=1 J | 1kg.m=9.807 J |
1kw.hr=3.6Mj |