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Convert Metric horsepower to BTU per hour

1 metric horsepower is 2,509.625906 BTU/h. One metric horsepower is exactly 2509.62590599 BTU per hour.

One metric horsepower is 2509.6259 BTU per hour. To convert metric horsepower to BTU per hour, multiply by 2509.6259; to go the other way, divide by 2509.6259 or multiply by 3.9847 × 10^-4. The factor is exact rather than rounded: it follows from NIST Special Publication 811. Exactly 75 kilogram-force metres a second, which is 1.4% less than mechanical horsepower.

Factor checked against the defining standard · How we check

BTU per hour
2,509.625906 BTU/h
Metric horsepower × 2509.6259
value * 2509.625905992,509.626 BTU/h

1 metric horsepower in every power unit

UnitValueExact factor
horsepower0.9863200706 hp× 0.98632007062
metric horsepower (as entered)1 PS
watts735.49875 W× 735.49875
kilowatts0.73549875 kW× 0.73549875
megawatts0.00073549875 MW× 0.00073549875
BTU per hour2,509.625906 BTU/h× 2,509.62590599

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 metric horsepower to BTU per hour?

  1. 1.Take the measurement in metric horsepower.
  2. 2.Multiply by 2509.6259 — that is how many BTU per hour fit in one metric horsepower.
  3. 3.To go back the other way, divide by 2509.6259, or multiply by 3.9847 × 10^-4.

Worked example: 25 metric horsepower to BTU per hour

Formula
PS × 2509.6259 = BTU/h
Arithmetic
25 × 2509.6259 = 62,740.64765 BTU/h
Answer
25 PS = 62,740.64765 BTU/h

The factor is rounded for display; the figure above is computed from the full value.

Metric horsepower to BTU per hour conversion table

Metric horsepowerBTU per hour
1 PS2,509.625906 BTU/h
2 PS5,019.251812 BTU/h
3 PS7,528.877718 BTU/h
4 PS10,038.503624 BTU/h
5 PS12,548.12953 BTU/h
6 PS15,057.755436 BTU/h
7 PS17,567.381342 BTU/h
8 PS20,077.007248 BTU/h
9 PS22,586.633154 BTU/h
10 PS25,096.25906 BTU/h
12 PS30,115.510872 BTU/h
15 PS37,644.38859 BTU/h
20 PS50,192.51812 BTU/h
25 PS62,740.64765 BTU/h
50 PS125,481.2953 BTU/h
100 PS250,962.590599 BTU/h
200 PS501,925.181198 BTU/h
300 PS752,887.771797 BTU/h
500 PS1,254,812.952995 BTU/h
1000 PS2,509,625.90599 BTU/h
2000 PS5,019,251.81198 BTU/h
5000 PS12,548,129.52995 BTU/h
10000 PS25,096,259.0599 BTU/h

What is a metric horsepower?

Exactly 75 kilogram-force metres a second, which is 1.4% less than mechanical horsepower. A German car quoted at 150 PS is 148 hp, and the difference is the definition rather than the engine.

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.

How many BTU per hour are in a metric horsepower?

One metric horsepower is 2509.6259 BTU per hour. Going the other way, one BTU per hour is 3.9847 × 10^-4 metric horsepower. 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

UnitSymbolOne of these is
Horsepowerhp745.69987 watt
Metric horsepowerPS735.49875 watt
WattsWthe base unit
KilowattskW1000 watt
MegawattsMW1000000 watt
BTU per hourBTU/h0.29307107 watt

Source: NIST Special Publication 811 — mechanical horsepower is 550 ft·lbf/s exactly

Questions people actually ask

How many BTU per hour are in a metric horsepower?
2509.6259. 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.
How do I convert BTU per hour back to metric horsepower?
Divide by 2509.6259, or multiply by 3.9847 × 10^-4 — they are the same operation.

Other power conversions

BTU per hour to metric horsepower — the same conversion the other way.