BTU per Hour to PS Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert BTU per Hour to PS, multiply by 0.0003984658. For example, 10 Btu/h is 0.003984658 PS. One btu per hour equals 0.0003984658 PS.

Use the BTU per Hour to PS Converter

BTU per Hour to PS formula and what each symbol means

PS = Btu/h × 0.0003984658

Symbols used in the formula
SymbolMeaning
Btu/hBTU per hour
PSMetric horsepower

BTU per Hour to PS examples

1 Btu/h

1 Btu/h × 0.0003984658 = 0.0003984658 PS.

10 Btu/h

10 Btu/h × 0.0003984658 = 0.003984658 PS.

100 Btu/h

100 Btu/h × 0.0003984658 = 0.03984658 PS.

BTU per Hour compared with PS

One PS is 2,510 times as large as one Btu/h, so your number gets smaller when you convert BTU per Hour to PS and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.

About BTU per Hour and PS

Metric horsepower (PS): Metric horsepower (Pferdestärke), exactly 735.49875 watts.

Where BTU per Hour to PS conversions are used

Engines and motors are rated in kilowatts or horsepower, depending on the market. Appliances and chargers list their draw in watts, while air conditioners may quote BTU per hour.

How to calculate BTU per Hour to PS step by step

  1. Enter the value in Btu/h (the starting unit).
  2. Multiply by 0.0003984658, because 1 Btu/h = 0.0003984658 PS.
  3. The product is the value in PS. To go back, divide by 0.0003984658 or multiply by 2,509.626.

Popular power conversions

How to read your BTU per Hour to PS result

Quick estimate: multiply by about 0.0004 to get PS from BTU per Hour; this is within 0.4% of the exact factor. One watt is one joule per second.

BTU PER HOURPS
10.0003984658
20.0007969315
50.001992329
100.003984658
200.007969315
500.01992329
1000.03984658
1,0000.3984658

PS to BTU per Hour: quick table

PSBTU PER HOUR
12,509.626
512,548.13
1025,096.26
2562,740.65
50125,481.3
100250,962.6
250627,406.5
5001,254,813

Common mistakes when calculating BTU per Hour to PS

  • Assuming all horsepower figures are the same: mechanical hp is about 1.4% larger than metric PS.
  • Dividing when you should multiply: from Btu/h to PS multiply by 0.0003984658; from PS to Btu/h divide by 0.0003984658.

BTU per Hour to PS FAQ

How many PS are in 1 Btu/h?

1 Btu/h equals 0.0003984658 PS.

How many Btu/h are in 1 PS?

1 PS equals 2,509.626 Btu/h.

Is 1 Btu/h = 0.0003984658 PS an exact conversion?

The factor is shown rounded to 7 significant figures (0.0003984658). The calculator above uses more digits.

What is a metric horsepower (PS)?

Metric horsepower (Pferdestärke), exactly 735.49875 watts.

How can I estimate BTU per Hour to PS in my head?

Quick estimate: multiply by about 0.0004 to get PS from BTU per Hour; this is within 0.4% of the exact factor.

What is 80 Btu/h in PS?

80 Btu/h = 0.03187726 PS (since 80 × 0.0003984658).

What is 500 Btu/h in PS?

500 Btu/h = 0.1992329 PS (since 500 × 0.0003984658).

What is 15 Btu/h in PS?

15 Btu/h = 0.005976986 PS (since 15 × 0.0003984658).

How many decimals should I keep when converting Btu/h to PS?

Match the precision of your original measurement. For example, 0.003984658 PS rounds to 0.00398 PS at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors