Convert BTU per hour to Horsepower
1 BTU per hour is 0.000393 hp. One BTU per hour is exactly 0.000393014778922 horsepower.
One BTU per hour is 3.9301 × 10^-4 horsepower. To convert BTU per hour to horsepower, multiply by 3.9301 × 10^-4; to go the other way, divide by 3.9301 × 10^-4 or multiply by 2544.4336. The factor is exact rather than rounded: it follows from NIST Special Publication 811. The rate US heating and air conditioning is sold in.
Factor checked against the defining standard · How we check
- BTU per hour × 3.9301 × 10^-4
value * 0.0003930147789220 hp
1 BTU per hour in every power unit
| Unit | Value | Exact factor |
|---|---|---|
| horsepower | 0.0003930147789 hp | × 0.000393014778922 |
| metric horsepower | 0.0003984657624 PS | × 0.000398465762413 |
| watts | 0.2930710702 W | × 0.293071070172 |
| kilowatts | 0.0002930710702 kW | × 0.000293071070172 |
| megawatts | 0.0000002930710702 MW | × 0.000000293071070172 |
| BTU per hour (as entered) | 1 BTU/h | — |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert BTU per hour to horsepower?
- 1.Take the measurement in BTU per hour.
- 2.Multiply by 3.9301 × 10^-4 — that is how many horsepower fit in one BTU per hour.
- 3.To go back the other way, divide by 3.9301 × 10^-4, or multiply by 2544.4336.
Worked example: 25 BTU per hour to horsepower
- Formula
- BTU/h × 3.9301 × 10^-4 = hp
- Arithmetic
- 25 × 3.9301 × 10^-4 = 0.009825 hp
- Answer
- 25 BTU/h = 0.009825 hp
The factor is rounded for display; the figure above is computed from the full value.
BTU per hour to horsepower conversion table
| BTU per hour | Horsepower |
|---|---|
| 1 BTU/h | 0.000393 hp |
| 2 BTU/h | 0.000786 hp |
| 3 BTU/h | 0.001179 hp |
| 4 BTU/h | 0.001572 hp |
| 5 BTU/h | 0.001965 hp |
| 6 BTU/h | 0.002358 hp |
| 7 BTU/h | 0.002751 hp |
| 8 BTU/h | 0.003144 hp |
| 9 BTU/h | 0.003537 hp |
| 10 BTU/h | 0.00393 hp |
| 12 BTU/h | 0.004716 hp |
| 15 BTU/h | 0.005895 hp |
| 20 BTU/h | 0.00786 hp |
| 25 BTU/h | 0.009825 hp |
| 50 BTU/h | 0.019651 hp |
| 100 BTU/h | 0.039301 hp |
| 200 BTU/h | 0.078603 hp |
| 300 BTU/h | 0.117904 hp |
| 500 BTU/h | 0.196507 hp |
| 1000 BTU/h | 0.393015 hp |
| 2000 BTU/h | 0.78603 hp |
| 5000 BTU/h | 1.965074 hp |
| 10000 BTU/h | 3.930148 hp |
What is a BTU per hour?
The rate US heating and air conditioning is sold in. A 12,000 BTU/h unit is one "ton" of cooling and about 3.5 kilowatts of heat moved.
What is a horsepower?
Mechanical horsepower: exactly 550 foot-pounds of work every second, the figure James Watt settled on to sell engines against pit ponies. US vehicle and motor ratings use it.
How many horsepower are in a BTU per hour?
One BTU per hour is 3.9301 × 10^-4 horsepower. Going the other way, one horsepower is 2544.4336 BTU per hour. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every power unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Horsepower | hp | 745.69987 watt |
| Metric horsepower | PS | 735.49875 watt |
| Watts | W | the base unit |
| Kilowatts | kW | 1000 watt |
| Megawatts | MW | 1000000 watt |
| BTU per hour | BTU/h | 0.29307107 watt |
Source: NIST Special Publication 811 — mechanical horsepower is 550 ft·lbf/s exactly
Questions people actually ask
- How many horsepower are in a BTU per hour?
- 3.9301 × 10^-4. Mechanical horsepower: exactly 550 foot-pounds of work every second, the figure James Watt settled on to sell engines against pit ponies. US vehicle and motor ratings use it.
- How do I convert horsepower back to BTU per hour?
- Divide by 3.9301 × 10^-4, or multiply by 2544.4336 — they are the same operation.
Other power conversions
Horsepower to BTU per hour — the same conversion the other way.