Horsepower to BTU per Hour
Convert horsepower to btu per hour instantly. 1 hp = 2544.433577644 BTU/h. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert horsepower to btu per hour
To convert horsepower to btu per hour, multiply by 2544.433577644. The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
BTU/h = hp × 2544.433577644
Horsepower to BTU per Hour conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Horsepower | BTU per Hour |
|---|---|
| 1 hp | 2,544.43 BTU/h |
| 2 hp | 5,088.87 BTU/h |
| 3 hp | 7,633.3 BTU/h |
| 5 hp | 12,722.17 BTU/h |
| 10 hp | 25,444.34 BTU/h |
| 20 hp | 50,888.67 BTU/h |
| 25 hp | 63,610.84 BTU/h |
| 50 hp | 127,221.68 BTU/h |
| 100 hp | 254,443.36 BTU/h |
| 500 hp | 1,272,216.79 BTU/h |
| 1,000 hp | 2,544,433.58 BTU/h |
What is a horsepower?
Mechanical horsepower, defined as 550 foot-pounds per second.
What is a btu per hour?
The rating unit for air conditioners and boilers in the US.
The formula
BTU/h = hp × 2544.433577644
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Horsepower to BTU per Hour
- Type the number of horsepower you want to convert.
- Read the result in btu per hour straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked btu per hour to horsepower page.
Horsepower to BTU per Hour — frequently asked questions
How many btu per hour are in a horsepower?
One horsepower equals 2544.433577644 BTU/h. BTU/h = hp × 2544.433577644
What is the formula to convert horsepower to btu per hour?
The formula is BTU/h = hp × 2544.433577644. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert btu per hour back to horsepower?
Divide instead of multiplying: one btu per hour is 0.0003930148 hp. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this horsepower to btu per hour free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the horsepower to btu per hour.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error