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Power and Energy

kWtokcal/hr

Convert kilowatts (kW) to kilocalories per hour (kcal/hr).

Factor1 kW = 859.8452 kcal/hr

Converter

kW

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

Result
8598.45kcal/hr

Rendered to 6 significant figures.

Formula

Formula
kcal/hr = kW × 859.8452

Multiply any value in kilowatts by 859.8452 to obtain the value in kilocalories per hour.

Worked example

Convert 10 kW to kcal/hr.

  1. 01Start with 10 kW.
  2. 02Multiply by the conversion factor: 10 × 859.8452 = 8598.45 kcal/hr.
Result10 kW = 8598.45 kcal/hr

Conversion table

kWkcal/hr
1859.85
21719.7
54299.2
108598.5
2017197
5042992
10085985
2001.7197e+5
5004.2992e+5
10008.5985e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kW to kcal/hr?
1 kW equals 859.8452 kcal/hr. To convert, multiply the value in kilowatts by 859.8452.
How do I convert 1 kW to kcal/hr?
1 kW = 859.845 kcal/hr. For any value, multiply by 859.8452.
How do I convert kcal/hr back to kW?
Divide by the same factor — or equivalently, multiply by 0.001163. So 1 kcal/hr = 0.001163 kW.
When would I need to convert kilowatt 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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