Convert Kilowatt-hours to Kilocalories
1 kilowatt-hour (kWh) equals 860.4206501 kilocalories (kcal).
1 kWh = 860.4206501 kcal
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilowatt-hour to kilocalorie converter to paste a column from Excel.
How to Convert Kilowatt-hour to Kilocalorie
- 1 kWh = 860.4206501 kcal
- 1 kcal = 0.001162222222 kWh
- Example: convert 15 kWh to kcal: 15 kWh = 15 × 860.4206501 kcal = 12906.30975 kcal
Reference conditions. kcal: Thermochemical kilocalorie (food Calorie), 4184 J exactly.
Formula
kcal = kWh × 860.4206500956
Derivation from SI units:
- 1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J
- 1 kcal = 1000 cal = 4184 J (exact)
- 1 kWh = 3600000 J ÷ 4184 J per kcal = 860.4206500956 kcal
Both units are defined exactly, so the factor is exact. Kilowatt-hour definition: kilowatt-hour; Kilocalorie definition: kilocalorie.
Worked examples
- A reading of 10 kWh converts to 8604.206501 kcal.
10 kWh × 860.4206501 = 8604.206501 kcal - A value of 75 kWh is 64531.54876 kcal.
75 kWh × 860.4206501 = 64531.54876 kcal
Kilowatt-hour to Kilocalorie conversion table
| Kilowatt-hours (kWh) | Kilocalories (kcal) |
|---|---|
| 0.1 kWh | 86.04206501 kcal |
| 0.5 kWh | 430.210325 kcal |
| 1 kWh | 860.4206501 kcal |
| 2 kWh | 1720.8413 kcal |
| 5 kWh | 4302.10325 kcal |
| 10 kWh | 8604.206501 kcal |
| 13.5 kWh | 11615.67878 kcal |
| 20 kWh | 17208.413 kcal |
| 30 kWh | 25812.6195 kcal |
| 50 kWh | 43021.0325 kcal |
| 75 kWh | 64531.54876 kcal |
| 100 kWh | 86042.06501 kcal |
| 300 kWh | 258126.195 kcal |
| 900 kWh | 774378.5851 kcal |
| 1000 kWh | 860420.6501 kcal |
| 10000 kWh | 8604206.501 kcal |
Where it's used
Kilowatt-hours are used for electricity bills and meters, while kilocalories appear in food and diet energy (2000 kcal reference intake). Both measure energy, work and heat, so the conversion is a fixed factor.
Kilowatt-hour to other energy units
| Conversion | 1 kWh equals |
|---|---|
| kilowatt-hour to joule | 3600000 J |
| kilowatt-hour to kilojoule | 3600 kJ |
| kilowatt-hour to megajoule | 3.6 MJ |
| kilowatt-hour to calorie | 860420.6501 cal |
| kilowatt-hour to kilocalorie | 860.4206501 kcal |
| kilowatt-hour to watt-hour | 1000 Wh |
| kilowatt-hour to BTU | 3412.141633 BTU |
| kilowatt-hour to therm | 0.03412956341 thm |
| kilowatt-hour to electronvolt | 2.246943267 × 10²⁵ eV |
| kilowatt-hour to foot-pound | 2655223.737 ft·lbf |
| kilowatt-hour to erg | 36000000000000 erg |
Frequently asked questions
How many kilocalories are in 1 kilowatt-hour?
1 kWh = 860.4206501 kcal.
How do I convert kilowatt-hours to kilocalories?
Multiply the value in kWh by 860.4206501. For example, 15 kWh × 860.4206501 = 12906.30975 kcal.
Is the kWh to kcal conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kilowatt hour (kW·h)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kilocalorie (thermochemical)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilowatt-hours to Kilocalories. Retrieved October 17, 2026, from https://scientificconverters.com/energy/kilowatt-hours-to-kilocalories/
IEEE
Scientific Converters, "Convert Kilowatt-hours to Kilocalories," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/kilowatt-hours-to-kilocalories/