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Energy or Work - Conversion Factors To convert from the unit in the first column to the unit in the second, multiply by the conversion factor in the third column. Example 1 Btu = (1 x 0.0002928) Kilowatt-Hrs = 0.0002928 Kilowatt-Hrs To Convert To Multiply By Btu Kilowatt-Hrs 0.0002928 Btu Horsepower-Hrs 0.0003931 Btu Kilogram-Calories 0.252 Btu Kilogram-Meters 107.5 Btu Gram-Calories 252 Btu Foot-Lbs 778.3 Btu Joules 1054.8 Btu Ergs 10550000000 Calorie Kilowatt-hour 0.000001163 Calorie Horsepower-hour 1.55961E-06 Calorie Horsepower-hour (metric) 1.58124E-06 Calorie Joule 4.1868 Ergs Kilowatt-hrs 2.778E-14 Ergs Horsepower-hrs 3.725E-14 Ergs Kg-Calories 2.389E-11 Ergs Watt-Hrs 2.778E-11 Ergs Btu 9.48E-11 Ergs Kg-Meters 1.02E-08 Ergs Gram-Calories 2.389E-08 Ergs Foot-Pounds 7.367E-08 Ergs Joules 0.0000001 Ergs Grams-Cms 0.00102 Ergs Dyne-Centimeters 1 Foot-Pounds Kilowatt-hrs 3.766E-07 Foot-Pounds Hp-Hrs 0.000000505 Foot-Pounds Kg-Calories 0.000324 Foot-Pounds Btu 0.001286 Foot-Pounds Kg-Meters 0.1383 Foot-Pounds Gram-calories 0.3238 Foot-Pounds Joules 1.356 Foot-Pounds Ergs 13560000 Horsepower-Hrs kilowatt-hrs 0.7457 Horsepower-Hrs kg-calories 641.1 Horsepower-Hrs Btu 2547 Horsepower-Hrs kg-meters 273700 Horsepower-Hrs gram-calories 641190 Horsepower-Hrs foot-lbs 1980000 Horsepower-Hrs joules 2684000 Horsepower-Hrs ergs 2.6845E+13 Joules Kg-Calories 0.0002389 Joules Watt-Hrs 0.0002778 Joules Btu 0.000948 Joules Kg-Meters 0.102 Joules Foot-Pounds 0.7376 Joules Ergs 10000000 Kilogram-Calories kilowatt-hrs 0.001163 Kilogram-Calories hp-hrs 0.00156 Kilogram-Calories Btu 3.968 Kilogram-Calories kilojoules 4.186 Kilogram-Calories kg-meters 426.9 Kilogram-Calories foot-pounds 3088 Kilogram-Calories joules 4186 Kilogram-Meters Kilowatt-hrs 0.000002723 Kilogram-Meters Kg-calories 0.002342 Kilogram-Meters Btu 0.009294 Kilogram-Meters Foot-pounds 7.233 Kilogram-Meters Joules 9.804 Kilogram-Meters Ergs 98040000 Kilowatt-Hrs Horsepower-hrs 1.341 Kilowatt-Hrs Lbs of water evap. at 212°F 3.53 Kilowatt-Hrs Lbs of water ^ from 62°-212°F 22.75 Kilowatt-Hrs Kg-calories 860.5 Kilowatt-Hrs Btu 3413 Kilowatt-Hrs Kg-meters 367100 Kilowatt-Hrs Gram-calories 859850 Kilowatt-Hrs Foot-lbs 2655000 Kilowatt-Hrs Joules 3600000 Kilowatt-Hrs Ergs 3.6E+13 Watt-Hours Kilowatt-hrs 0.001 Watt-Hours Horsepower-hrs 0.001341 Watt-Hours Kilogram-calories 0.8605 Watt-Hours Btu 3.413 Watt-Hours Kiloram-meters 367.2 Watt-Hours Gram-calories 859.85 Watt-Hours Foot-pounds 2656 Watt-Hours Ergs 36000000000