HomeUnit Conversion › Kilocalories (food calories) to Kilowatt-hours

Kilocalories (food calories) to Kilowatt-hours (kcal to kWh)

Convert kilocalories (food calories) to kilowatt-hours: 1 kcal = 0.00116222 kWh. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

Formula

1 kcal = 0.00116222 kWh

kilowatt-hours = kilocalories (food calories) × 0.001162222222 — reverse: kilocalories (food calories) = kilowatt-hours × 860.4206501

The factor is derived from the SI definitions of both units (base unit: J) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.

Worked examples

Kilocalories (food calories) to kilowatt-hours conversion table

Kilocalories (food calories) (kcal)Kilowatt-hours (kWh)
10.00116222
20.00232444
30.00348667
40.00464889
50.00581111
60.00697333
70.00813556
80.00929778
90.01046
100.0116222
150.0174333
200.0232444
250.0290556
300.0348667
400.0464889
500.0581111
750.0871667
1000.116222
2000.232444
2500.290556
5000.581111
10001.16222

FAQ

How many kilowatt-hours are in one kilocalorie?

1 kcal = 0.00116222 kWh. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

What is the formula to convert kilocalories (food calories) to kilowatt-hours?

Multiply the value in kilocalories (food calories) by 0.001162222222: kilowatt-hours = kilocalories (food calories) × 0.001162222222. For example, 5 kcal = 0.00581111 kWh.

How do I convert kilowatt-hours back to kilocalories (food calories)?

Multiply by the inverse factor 860.4206501 (kilocalories (food calories) = kilowatt-hours × 860.4206501), or use the kilowatt-hours-to-kilocalories (food calories) page.

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