▸ processconvert
Power and Energy

hptoBTU/hr

Convert mechanical horsepower (hp) to British thermal units per hour (BTU/hr).

Factor1 hp = 2544.434 BTU/hr

Converter

hp

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

Result
25444.3BTU/hr

Rendered to 6 significant figures.

Formula

Formula
BTU/hr = hp × 2544.434

Multiply any value in mechanical horsepower by 2544.434 to obtain the value in British thermal units per hour.

Worked example

Convert 10 hp to BTU/hr.

  1. 01Start with 10 hp.
  2. 02Multiply by the conversion factor: 10 × 2544.434 = 25444.3 BTU/hr.
Result10 hp = 25444.3 BTU/hr

Conversion table

hpBTU/hr
12544.4
25088.9
512722
1025444
2050889
501.2722e+5
1002.5444e+5
2005.0889e+5
5001.2722e+6
10002.5444e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from hp to BTU/hr?
1 hp equals 2544.434 BTU/hr. To convert, multiply the value in mechanical horsepower by 2544.434.
How do I convert 1 hp to BTU/hr?
1 hp = 2544.43 BTU/hr. For any value, multiply by 2544.434.
How do I convert BTU/hr back to hp?
Divide by the same factor — or equivalently, multiply by 0.0003930148. So 1 BTU/hr = 0.000393015 hp.
When would I need to convert mechanical horsepower 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).

Related conversions