Unit Conversion Calculator

Unit conversions for: Temperature, Angle, Length, Area, Volume, Mass, Force, Pressure, Time, Velocity, Acceleration, Volumetric Flowrate, Mass Density, Weight Density, Mass Flow, Energy, Power, Viscosity

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The acceleration of gravity, 9.8066 m/s2, is used to convert between mass and force.
Pound(mass) and pound(force) have identical numerical values.  We list both units because many people are used to using one or the other and like to see them listed separately.
The BTU and calorie units are thermochemical values.

Abbreviations used in our calculator:
bbl=barrel, BTU=British thermal unit, cm=centimeter, ft=foot, km=kilometer, kW=kiloWatt, lb=pound, lb(f)=pound(force), lb(m)=pound(mass), m=meter, Mcf=million cubic feet, mg=milligram, MGD=million gallons per day, mm=millimeter, MPa=Mega Pascal, min=minute, N=newton, s=sec=second, UK=United Kingdom (used for gallons), US=United States (used for gallons and some other units), yr=year

LMNO Engineering wrote the computer program in Java using double precision so that the maximum amount of decimal places in the unit conversions could be used.  We used the maximum amount of significant figures for each unit.  For instance, Munson et al. (1998) provides a unit conversion of 1 bushel(US)=0.03523907016688 meter3.   We used all of the digits in the program.

Bear, J.  1979.  Hydraulics of Groundwater.  McGraw-Hill Pub Co.

Munson, B.R., D. F. Young, and T. H. Okiishi.  1998.  Fundamentals of Fluid Mechanics.  John Wiley and Sons, Inc.  3ed.  (This is the best reference for fluid mechanics unit conversions.  It indicates which unit conversions are exact by definition and which are approximate - there are some units in existence that cannot be exactly converted from one unit to another.  For the non-exact conversions, it provides on the order of 10 significant digits for each unit.)

Perry, R. H. and D. W. Green.  1984.  Perry's Chemical Engineers' Handbook   McGraw-Hill, Inc.  6ed.

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