Power and Energy
kcaltoWh
Convert kilocalories (kcal) to watt-hours (Wh).
Factor1 kcal = 1.162222 Wh
Converter
kcal
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Wh
Rendered to 6 significant figures.
Formula
Formula
Wh = kcal × 1.162222
Multiply any value in kilocalories by 1.162222 to obtain the value in watt-hours.
Worked example
Convert 1000 kcal to Wh.
- 01Start with 1000 kcal.
- 02Multiply by the conversion factor: 1000 × 1.162222 = 1162.22 Wh.
Result1000 kcal = 1162.22 Wh
Conversion table
| kcal | Wh |
|---|---|
| 1 | 1.1622 |
| 2 | 2.3244 |
| 5 | 5.8111 |
| 10 | 11.622 |
| 20 | 23.244 |
| 50 | 58.111 |
| 100 | 116.22 |
| 200 | 232.44 |
| 500 | 581.11 |
| 1000 | 1162.2 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kcal to Wh?
1 kcal equals 1.162222 Wh. To convert, multiply the value in kilocalories by 1.162222.
How do I convert 1 kcal to Wh?
1 kcal = 1.16222 Wh. For any value, multiply by 1.162222.
How do I convert Wh back to kcal?
Divide by the same factor — or equivalently, multiply by 0.8604207. So 1 Wh = 0.860421 kcal.
When would I need to convert kilocalorie to watt-hour?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).