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Conversion Factors for Units of Heat and Energy

Metric Units British Units

Million kilogram-
force metre
(106 kgf m)
Kilowatt hour
(kWh)
Megajoule
(106 J)
Million calories
(106 cal)
Horse power-hour
(hp-h)
Thousand British Thermal Units
(103 BThU)

1 Million kilogram-
force metre
(106 kgf m)
1 2.724 07 9.806 65 2.342 28 3.653 04 9.294 9
 
1 Kilowatt hour
(kWh)
0.367 098 1 3.6 0.859 85 1.341 02 3.412 14
 
1 Megajoule
(106 J)
0.101 972 0.277 778 1 0.238 846 0.372 506 0.947 82
 
1 Million calories
(106 cal)
0.429 935 1.163 4.186 8 1 1.559 61 3.968 32
 
1 Horse power-hour
(hp-h)
0.273 745 0.745 70 2.684 52 0.641 19 1 2.544 43
 
1 Thousand British Thermal Units
(103 BThU)
0.107 586 0.293 071 1.055 06 0.251 996 0.393 015 1