Power

hp to BTU/hr conversion

Convert mechanical horsepower (hp) to BTU per hour (BTU/hr). Power is energy per unit time — the rating of pumps, compressors, motors, and heat duties.

1 hp = 2544.434 BTU/hr

Formula

To convert mechanical horsepower to BTU per hour, multiply the hp value by 2544.434. To go the other way, divide by 2544.434 (or multiply by 0.0003930148).

hp to BTU/hr conversion table

hp	BTU/hr
1	2544.434
2	5088.867
5	12722.17
10	25444.34
25	63610.84
50	127221.7
100	254443.4
250	636108.4
500	1272217
1000	2544434

Used in practice

Rotating-equipment duties are quoted in kW or hp; heat duties in kW, MW, or BTU/hr.

Electrical input, shaft power, and hydraulic power differ by the efficiencies between them — label which one a number refers to.

Worked example. A power of 134.1022 hp is 341214.2 BTU/hr.

Frequently asked questions

How do you convert mechanical horsepower to BTU per hour?

Multiply the value in hp by 2544.434 to get BTU/hr. For example, 10 hp = 25444.34 BTU/hr.

What is 1 hp in BTU/hr?

1 hp equals 2544.434 BTU/hr.

Where is this conversion used?