Kilocalories (kcal) to Kilowatt-Hours (kWh) Converter
Enter a value to instantly convert between energy units.
1 Kilocalorie = 0.0012 Kilowatt-Hour
Key Formulas
Kilocalorie → Kilojoule
kJ = kcal × 4.184Kilojoule → Kilocalorie
kcal = kJ × 0.239006Kilowatt-Hour → Joule
J = kWh × 3600000Joule → Kilowatt-Hour
kWh = J × 2.77778e-7Formula
kWh = kcal ÷ 859.845One kilowatt-hour equals 859.845 kilocalories. This conversion is useful when comparing the energy value of food to electrical energy — a typical human diet of 2000 kcal/day is equivalent to about 2.3 kWh/day of metabolic power.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
A nutrition student learning that 860 kcal (one small meal) equals 1 kWh for the textbook.
859.845 kcal = 1 kWh
A researcher comparing 2000 kcal/day diet to electrical consumption — 2.33 kWh/day.
2000 kcal = 2.326 kWh
A chocolate bar with 500 kcal provides 0.582 kWh of energy — interesting comparison.
500 kcal = 0.5816 kWh
A fitness app showing 100 kcal burned converts to 0.116 kWh for the energy display.
100 kcal = 0.1163 kWh