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Conversion Factors for Acceptable Units


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Energy, Work, Quantity of Heat
To convert Column 1 into Column 2 multiply by

Column 1
Acceptable Unit
Column 2
S1 Unit
To convert
Column 2 into
Column 1
multiply by
1.05 x 103 British thermal unit, Btu
joule, J 9.52 x 10-4
4.19 calorie, cal
joule, J 0.239
4.19 x 104 calorie per square
centimeter (langley),
cal/sq cm
joule per square meter, J/sq m 2.387 x 10-5
698 calorie per square
centimeter per minute,
cal/sq cm/min
watt per square meter, W/sq m 1.43 x 10-3
1.36 foot-pound, ft-lb
joule, J 0.735



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