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Power and Energy

cal/stoBTU/hr

Convert calories per second (cal/s) to British thermal units per hour (BTU/hr).

Factor1 cal/s = 14.2764 BTU/hr

Converter

cal/s

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

Result
14.2764BTU/hr

Rendered to 6 significant figures.

Formula

Formula
BTU/hr = cal/s × 14.2764

Multiply any value in calories per second by 14.2764 to obtain the value in British thermal units per hour.

Worked example

Convert 1 cal/s to BTU/hr.

  1. 01Start with 1 cal/s.
  2. 02Multiply by the conversion factor: 1 × 14.2764 = 14.2764 BTU/hr.
Result1 cal/s = 14.2764 BTU/hr

Conversion table

cal/sBTU/hr
114.276
228.553
571.382
10142.76
20285.53
50713.82
1001427.6
2002855.3
5007138.2
100014276

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cal/s to BTU/hr?
1 cal/s equals 14.2764 BTU/hr. To convert, multiply the value in calories per second by 14.2764.
How do I convert 1 cal/s to BTU/hr?
1 cal/s = 14.2764 BTU/hr. For any value, multiply by 14.2764.
How do I convert BTU/hr back to cal/s?
Divide by the same factor — or equivalently, multiply by 0.07004567. So 1 BTU/hr = 0.0700457 cal/s.
When would I need to convert calorie per second to British thermal unit 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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