Kilowatt-hours to kilocalories
Multiply kilowatt-hours by 860.4207 to get kilocalories.
5 kWh = 4,302.1033 kcal
How to convert kilowatt-hours to kilocalories
The kilocalorie is one thousand thermochemical calories (4184 J) — the "Calorie" on food labels. The kilowatt-hour is one kilowatt for one hour, exactly 3.6 megajoules — the electricity billing unit.
Worked example — 5 kWh: 5 × 860.4207 = 4,302.1033 kcal.
Kilowatt-hours to kilocalories table
| Kilowatt-hours | Kilocalories |
|---|---|
| 0.1 kWh | 86.0421 kcal |
| 0.5 kWh | 430.2103 kcal |
| 1 kWh | 860.4207 kcal |
| 2 kWh | 1,720.8413 kcal |
| 5 kWh | 4,302.1033 kcal |
| 10 kWh | 8,604.2065 kcal |
| 20 kWh | 17,208.413 kcal |
| 50 kWh | 43,021.0325 kcal |
| 100 kWh | 86,042.065 kcal |
Reverse and related
About kilowatt-hours and kilocalories
Kilowatt-hour (kWh)
1 kWh = 860.4207 kcalDefinition. One kilowatt for one hour, exactly 3.6 megajoules — the electricity billing unit
History and origin
The kilowatt-hour is the energy of one kilowatt sustained for one hour, exactly 3.6 megajoules. It became the standard way to bill electricity as power grids spread.
Current use
Kilowatt-hours are the unit on electricity bills and describe the capacity of batteries, including electric-vehicle packs.
Source: NIST SP 811, Appendix B; ISO 80000-5 (energy)
Kilocalorie (kcal)
1 kcal = 0.00116222 kWhDefinition. One thousand thermochemical calories (4184 J) — the "Calorie" on food labels
History and origin
The kilocalorie is one thousand calories, where the calorie was defined as the heat needed to warm one gram of water by one degree Celsius. On food labels the capitalised Calorie is really a kilocalorie.
Current use
Kilocalories, shown as Calories, measure food energy on US and many other nutrition labels.
Source: NIST SP 811, Appendix B; ISO 80000-5 (energy)
Where people use this
Kilowatt-hours: electricity bills, EV batteries. Kilocalories: nutrition and diet, food labels. 1 kWh is about 860 kcal.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST SP 811, Appendix B; ISO 80000-5 (energy).
Questions people ask
How many kcal is 1 kWh?
One kilowatt-hour is about 860 kilocalories.
How many kWh is 2000 kcal?
2000 kcal is about 2.33 kWh.
How many kcal is 2 kWh?
2 kWh is about 1720 kcal.