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Power and Energy

Wtokcal/hr

Convert watts (W) to kilocalories per hour (kcal/hr).

Factor1 W = 0.8598452 kcal/hr

Converter

W

Accepts numbers or expressions, e.g. 150 + 14.7

Result
859.845kcal/hr

Rendered to 6 significant figures.

Formula

Formula
kcal/hr = W × 0.8598452

Multiply any value in watts by 0.8598452 to obtain the value in kilocalories per hour.

Worked example

Convert 1000 W to kcal/hr.

  1. 01Start with 1000 W.
  2. 02Multiply by the conversion factor: 1000 × 0.8598452 = 859.845 kcal/hr.
Result1000 W = 859.845 kcal/hr

Conversion table

Wkcal/hr
10.85985
21.7197
54.2992
108.5985
2017.197
5042.992
10085.985
200171.97
500429.92
1000859.85

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from W to kcal/hr?
1 W equals 0.8598452 kcal/hr. To convert, multiply the value in watts by 0.8598452.
How do I convert 1 W to kcal/hr?
1 W = 0.859845 kcal/hr. For any value, multiply by 0.8598452.
How do I convert kcal/hr back to W?
Divide by the same factor — or equivalently, multiply by 1.163. So 1 kcal/hr = 1.163 W.
When would I need to convert watt to kilocalorie per hour?
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).

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