BTU/hr to Horsepower Converter
Enter the power in btu/hr below to convert it to horsepower.
Convert BTU/hr to Horsepower (hp)
Enter a value in btu/hr (BTU/hr) to convert to horsepower (hp) (hp).
BTU per Hour to Horsepower Conversion Table
Table showing various btu per hour measurements converted to horsepower. Click any preset value or arrow to load it into the converter.
| BTU/hr (BTU/hr) | Horsepower (hp) (hp) |
|---|---|
| 1 BTU/hr | 0.000393015 hp |
| 2 BTU/hr | 0.00078603 hp |
| 2.5 BTU/hr | 0.000982537 hp |
| 5 BTU/hr | 0.0019651 hp |
| 10 BTU/hr | 0.0039301 hp |
| 15 BTU/hr | 0.0058952 hp |
| 20 BTU/hr | 0.0078603 hp |
| 25 BTU/hr | 0.0098254 hp |
| 30 BTU/hr | 0.0117904 hp |
| 50 BTU/hr | 0.0196507 hp |
How to Convert BTU/hr to Horsepower
To convert btu/hr to horsepower, multiply the power by the following conversion ratio: 0.000393015 horsepower/btu per hour.
Since one btu per hour is equal to 0.000393015 horsepower, you can use this simple formula to convert:
The power in horsepower is equal to the power in btu/hr multiplied by 0.000393015.
For example, here's how to convert 5 btu/hr to horsepower using the formula above.
How Many Horsepower Are in a BTU per Hour?
There are 0.000393015 horsepower in a btu per hour, which is why we use this value in the formula above.
Our btu per hour to horsepower calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
BTU/hr and horsepower are both units used to measure power. Keep reading to learn more about each unit.
What Is a BTU per Hour?
A btu per hour is a unit of power equal to 0.2930711 watts (W), the base unit for power. HVAC thermal rate (1 W ≈ 3.41214 BTU/hr). [1]
The btu per hour is classified as a US customary and imperial unit of power. BTU/hr can be abbreviated as BTU/hr; for example, 1 btu per hour can be written as 1 BTU/hr.
When working with btu/hr (BTU/hr) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, btu/hr (BTU/hr) are widely used across standard power applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Horsepower?
A horsepower is a unit of power equal to 745.6998716 watts (W), the base unit for power. Imperial mechanical horsepower (550 ft·lbf/s ≈ 745.7 W). [2]
The horsepower is classified as a US customary and imperial unit of power. Horsepower can be abbreviated as hp; for example, 1 horsepower can be written as 1 hp.
When working with horsepower (hp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, horsepower (hp) are widely used across standard power applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting power between btu/hr (BTU/hr) and horsepower (hp), keep full floating-point precision (1 BTU/hr = 0.000393015 hp; 1 hp = 2,544.4335791 BTU/hr) during intermediate calculations and round only the final horsepower figure to match your instrument tolerance.
More BTU per Hour & Horsepower Conversions
Need to calculate in the opposite direction? Use our horsepower (hp) to btu/hr calculator to switch your starting unit immediately. You can also explore related tools such as converting horsepower (hp) to btu/hr, converting watts to horsepower (hp), or converting kilowatts to horsepower (hp).
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — BTU/hr (BTU/hr) to Horsepower (hp) (hp)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: BTU per Hour (BTU/hr) & Horsepower (Mechanical) (hp)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (BTU/hr to hp)