Power and Energy
kcal/hrtoW
Convert kilocalories per hour (kcal/hr) to watts (W).
Factor1 kcal/hr = 1.163 W
Converter
kcal/hr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
W
Rendered to 6 significant figures.
Formula
Formula
W = kcal/hr × 1.163
Multiply any value in kilocalories per hour by 1.163 to obtain the value in watts.
Worked example
Convert 1000 kcal/hr to W.
- 01Start with 1000 kcal/hr.
- 02Multiply by the conversion factor: 1000 × 1.163 = 1163 W.
Result1000 kcal/hr = 1163 W
Conversion table
| kcal/hr | W |
|---|---|
| 1 | 1.163 |
| 2 | 2.326 |
| 5 | 5.815 |
| 10 | 11.63 |
| 20 | 23.26 |
| 50 | 58.15 |
| 100 | 116.3 |
| 200 | 232.6 |
| 500 | 581.5 |
| 1000 | 1163 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kcal/hr to W?
1 kcal/hr equals 1.163 W. To convert, multiply the value in kilocalories per hour by 1.163.
How do I convert 1 kcal/hr to W?
1 kcal/hr = 1.163 W. For any value, multiply by 1.163.
How do I convert W back to kcal/hr?
Divide by the same factor — or equivalently, multiply by 0.8598452. So 1 W = 0.859845 kcal/hr.
When would I need to convert kilocalorie per hour to watt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
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).