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Convert Kilocalories to Kilowatt-hours

One kilocalorie equals 0.00116222 kilowatt-hours. Type any value to convert kilocalories to kilowatt-hours instantly — with a full reference table below.

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Convert Kilocalories to Kilowatt-hours

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Formula

How to convert Kilocalories to Kilowatt-hours

To convert kilocalories to kilowatt-hours, multiply by 0.00116222. One kilocalorie equals 0.00116222 kWh, and one kilowatt-hour equals 860.4207 kcal.

  1. Take the value in kilocalories — for example 7.5 kcal.
  2. Multiply by 0.00116222 (the number of kilowatt-hours in one kilocalorie).
  3. 7.5 × 0.00116222 = 0.00871667 kWh.

Quick mental estimate: Divide the number of kilocalories by 860 (accurate to better than 0.05%).

Kilocalories to Kilowatt-hours conversion table

KilocaloriesKilowatt-hours
1 kcal0.00116222 kWh
2 kcal0.00232444 kWh
5 kcal0.00581111 kWh
10 kcal0.0116222 kWh
20 kcal0.0232444 kWh
50 kcal0.0581111 kWh
100 kcal0.116222 kWh
200 kcal0.232444 kWh
500 kcal0.581111 kWh
1,000 kcal1.162222 kWh
2,000 kcal2.324444 kWh
Kilowatt-hoursKilocalories
1 kWh860.4207 kcal
2 kWh1,720.841 kcal
5 kWh4,302.103 kcal
10 kWh8,604.207 kcal
20 kWh17,208.41 kcal
50 kWh43,021.03 kcal
100 kWh86,042.07 kcal
200 kWh172,084.1 kcal
500 kWh430,210.3 kcal
1,000 kWh860,420.7 kcal
2,000 kWh1,720,841 kcal

About converting Kilocalories to Kilowatt-hours

Kilocalories (kcal) and Kilowatt-hours (kWh) are both units of energy. The exact factor is 1 kcal = 0.00116222 kWh, so multiply by 0.00116222 to go from kilocalories to kilowatt-hours (or divide to go back).

The conversion runs entirely in your browser. Need the reverse? Use the Kilowatt-hours to Kilocalories converter, or the full unit converter for every unit at once.

Real-world energy in kilocalories and kilowatt-hours

ExampleKilocaloriesKilowatt-hours
A 100 W bulb running for one hour86.04207 kcal0.1 kWh
A smartphone battery (≈19 Wh)≈ 16.5631 kcal≈ 0.01925 kWh
A 2,000 kcal daily diet2,000 kcal2.324444 kWh
One kilowatt-hour860.4207 kcal1 kWh
A tonne of TNT1,000,000 kcal1,162.222 kWh

“≈” marks typical values; the rest are defined or measured figures.

The units

Kilocalories (kcal)

1,000 calories, exactly 4,184 J — the 'Calorie' on food labels.

Used for: Nutrition and diets.

Kilowatt-hours (kWh)

1,000 watt-hours, exactly 3.6 MJ — the 'unit' on electricity bills.

Used for: Electricity bills and EV batteries.

The thermochemical calorie is exactly 4.184 J and a kilowatt-hour is exactly 3.6 MJ, so these factors are exact.

Frequently asked questions

5 answers
How many kilowatt-hours are in one kilocalorie?
One kilocalorie equals 0.00116222 kilowatt-hours.
How do I convert kilocalories to kilowatt-hours?
Multiply the number of kilocalories by 0.00116222. For example, 10 kilocalories = 0.0116222 kilowatt-hours.
What is 5 kilocalories in kilowatt-hours?
5 kilocalories is 0.00581111 kilowatt-hours.
Is a kilocalorie bigger than a kilowatt-hour?
No. One kilocalorie is 0.00116222 of a kilowatt-hour — it takes 860.4207 kilocalories to make one kilowatt-hour.
How many kilowatt-hours is a 2,000 kcal daily diet?
A 2,000 kcal daily diet is 2.324444 kilowatt-hours (2,000 kilocalories).