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Mesures americaines
1 pint=33.60 cu.in.=0.550 litre
1 quart=2 pints=1.101 litres
1 peck=8 quarts=8.81 litres
1 bushel=4 pecks=35.3 litres
Mesures americaines liquides
1 pint=16 fluid oz.=28.88 cu.in.=0.473 litre
1 quart=2 pints=0.946 litre
1 gallon=4 quarts=3.785 litres
Poid
1 grain=0.065 gramme
1 dram=1.772 grammes
1 ounce=16 drams=28.35 grammes
1 pound=16 ounces=7000 grains=0.4536 kilogramme
1 stone=14 pounds=6.35 kilogrammes
1 quarter= 2 stones=12.70 kilogrammes
1 hundredweight=4 quarters=50.80 kilogrammes
1 short ton=2000 pounds=0.907 tonne
1 (long)ton=20 hundredweight=1.016 tonnes
Energie, puissance
1 usrt=3024 kcal/h=3516 w
1 kcal/h=1.163 w
1 kw=860 kcal/h
1 btu/h=0.293 w
Vitesse, flux
1 m/s=196.85 fpm
1 cfm=1.699 cmh
1 gpm=0.27276 cmh
1 gpm=0.2271 cmh
Pression
1 bar=100000 pa
1 psi=0.0703 kgf/cm2
1 kgf/cm2=98000 pa
1 mm aq.=9.8 pa
1 mm hg=133.28 pa
1 m H2O=9800 pa=0.1 kgf/cm2
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