Power and Energy
kcal/hrtoBTU/s
Convert kilocalories per hour (kcal/hr) to British thermal units per second (BTU/s).
Factor1 kcal/hr = 0.001102311 BTU/s
Converter
kcal/hr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
BTU/s
Rendered to 6 significant figures.
Formula
Formula
BTU/s = kcal/hr × 0.001102311
Multiply any value in kilocalories per hour by 0.001102311 to obtain the value in British thermal units per second.
Worked example
Convert 10000 kcal/hr to BTU/s.
- 01Start with 10000 kcal/hr.
- 02Multiply by the conversion factor: 10000 × 0.001102311 = 11.0231 BTU/s.
Result10000 kcal/hr = 11.0231 BTU/s
Conversion table
| kcal/hr | BTU/s |
|---|---|
| 1 | 0.0011023 |
| 2 | 0.0022046 |
| 5 | 0.0055116 |
| 10 | 0.011023 |
| 20 | 0.022046 |
| 50 | 0.055116 |
| 100 | 0.11023 |
| 200 | 0.22046 |
| 500 | 0.55116 |
| 1000 | 1.1023 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kcal/hr to BTU/s?
1 kcal/hr equals 0.001102311 BTU/s. To convert, multiply the value in kilocalories per hour by 0.001102311.
How do I convert 1 kcal/hr to BTU/s?
1 kcal/hr = 0.00110231 BTU/s. For any value, multiply by 0.001102311.
How do I convert BTU/s back to kcal/hr?
Divide by the same factor — or equivalently, multiply by 907.1847. So 1 BTU/s = 907.185 kcal/hr.
When would I need to convert kilocalorie per hour to British thermal unit per second?
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).