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Power and Energy

BTU/mintocal/s

Convert British thermal units per minute (BTU/min) to calories per second (cal/s).

Factor1 BTU/min = 4.20274 cal/s

Converter

BTU/min

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

Result
4.20274cal/s

Rendered to 6 significant figures.

Formula

Formula
cal/s = BTU/min × 4.20274

Multiply any value in British thermal units per minute by 4.20274 to obtain the value in calories per second.

Worked example

Convert 1 BTU/min to cal/s.

  1. 01Start with 1 BTU/min.
  2. 02Multiply by the conversion factor: 1 × 4.20274 = 4.20274 cal/s.
Result1 BTU/min = 4.20274 cal/s

Conversion table

BTU/mincal/s
14.2027
28.4055
521.014
1042.027
2084.055
50210.14
100420.27
200840.55
5002101.4
10004202.7

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/min to cal/s?
1 BTU/min equals 4.20274 cal/s. To convert, multiply the value in British thermal units per minute by 4.20274.
How do I convert 1 BTU/min to cal/s?
1 BTU/min = 4.20274 cal/s. For any value, multiply by 4.20274.
How do I convert cal/s back to BTU/min?
Divide by the same factor — or equivalently, multiply by 0.23794. So 1 cal/s = 0.23794 BTU/min.
When would I need to convert British thermal unit per minute to calorie 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).

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