Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Metric horsepower to BTU per hour
Convert PS to BTU/h instantly, then review the formula, assumptions, and rounding guidance.
Energy, work, heat & powerInstant result
Decimals
Formula result = input × 735.49875 ÷ 0.293071070172. 1 PS = 2,509.6259 BTU/h
Common examples
One value, several units
Watts735.4988 W
Kilowatts0.7355 kW
Megawatts0.0007 MW
Mechanical horsepower0.9863 hp
BTU per hour2,509.6259 BTU/h
Conversion table
| PS | BTU/h |
|---|---|
| 1 PS | 2,509.6259 BTU/h |
| 2 PS | 5,019.2518 BTU/h |
| 5 PS | 12,548.1295 BTU/h |
| 10 PS | 25,096.2591 BTU/h |
| 25 PS | 62,740.6476 BTU/h |
| 50 PS | 125,481.2953 BTU/h |
| 100 PS | 250,962.5906 BTU/h |
Conversion chart
1 PS2,509.6259 BTU/h
5 PS12,548.1295 BTU/h
10 PS25,096.2591 BTU/h
25 PS62,740.6476 BTU/h
50 PS125,481.2953 BTU/h
Worked example
1 mechanical horsepower is approximately 745.7 watts.
Unit definition
Metric horsepower (PS) One metric horsepower equals 735.49875 watt.
Unit history
Metric horsepower is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert PS to watt.
3. Convert the base value to BTU/h and apply your display precision.
Understand the result before using it
Metric horsepower to BTU per hour converts a value measured in Metric horsepower (PS) into the equivalent value in BTU per hour (BTU/h). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 735.49875 ÷ 0.293071070172
Assumptions
- Metric horsepower and BTU per hour represent the same power quantity.
- The input is expressed in PS; the output is expressed in BTU/h.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 PS = 2,509.62590599 BTU/h. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a PS measurement in a document that expects BTU/h.
- Compare a metric horsepower value with a value reported in btu per hour.
- Check the PS-to-BTU/h arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse PS with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Metric horsepower to BTU per hour?
result = input × 735.49875 ÷ 0.293071070172 Using the displayed relationship, 1 PS equals 2,509.62590599 BTU/h.
How many BTU per hour are in one Metric horsepower?
One Metric horsepower is 2,509.62590599 BTU per hour. The displayed digits may be rounded.
Can I reverse the PS to BTU/h conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts BTU/h back to PS.
Is the Metric horsepower to BTU per hour result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.