BTU/Hour to Horsepower (Boiler) Converter

Power Converter

22 units available

Decimals:

From

To

2.987625e-5

1 BTU/h = 2.987625e-5 hp (S)

Formula:

hp (S) = BTU/h × 0.0000298762

With your value: 1 BTU/h = 2.987625e-5 hp (S)

How big is that?

Everyday references on a logarithmic scale, all expressed in btu/hour so you can sanity-check the result.

Your value1.00 BTU/h

LED bulb (31× your value)30.7 BTU/h

Laptop (2.2e+2× your value)222 BTU/h

Microwave oven (3.4e+3× your value)3.41e+3 BTU/h

Electric kettle (1.0e+4× your value)1.02e+4 BTU/h

Family car engine (3.1e+5× your value)3.07e+5 BTU/h

Other BTU/Hour to Horsepower (Boiler) conversions

2 BTU/h to hp (S)3 BTU/h to hp (S)4 BTU/h to hp (S)5 BTU/h to hp (S)6 BTU/h to hp (S)7 BTU/h to hp (S)8 BTU/h to hp (S)

BTU/Hour to Horsepower (Boiler) Conversion Table

BTU/Hour (BTU/h)	Horsepower (Boiler) (hp (S))
0.5	1.493812e-5
1	2.987625e-5
2	5.975250e-5
5	0.000149
10	0.000299
15	0.000448
20	0.000598
25	0.000747
50	0.001494
100	0.002988
250	0.007469
500	0.014938
1000	0.029876

Horsepower (Boiler) to BTU/Hour Conversion Table

Horsepower (Boiler) (hp (S))	BTU/Hour (BTU/h)
0.5	16,735.701675
1	33,471.40335
2	66,942.8067
5	167,357.016751
10	334,714.033502
15	502,071.050253
20	669,428.067003
25	836,785.083754
50	1,673,570.167508
100	3,347,140.335017
250	8,367,850.837542
500	16,735,701.675084
1000	33,471,403.350169

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

BTU/Hour (BTU/h)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Horsepower (Boiler) (hp (S))

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert BTU/Hour to Horsepower (Boiler)

To convert from BTU/Hour (BTU/h) to Horsepower (Boiler) (hp (S)), multiply the value by 2.987625e-5.

Formula: hp (S) = BTU/h × 0.0000298762

Reverse: BTU/h = hp (S) × 33,471.4033501688

Step-by-Step Example

Start with your value in BTU/Hour. For example: 5 BTU/h
Multiply by the conversion factor: 5 x 2.987625e-5
The result is: 0.000149 hp (S)

About BTU/Hour

The btu/hour (BTU/h) is a unit of power. One btu/hour equals 0.2930710702 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About Horsepower (Boiler)

The horsepower (boiler) (hp (S)) is a unit of power. One horsepower (boiler) equals 9809.5 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

How many Horsepower (Boiler) are in 1 BTU/Hour?

There are exactly 2.987625e-5 Horsepower (Boiler) in 1 BTU/Hour. This means the conversion factor from BTU/Hour to Horsepower (Boiler) is 2.987625e-5.

What is the formula to convert BTU/Hour to Horsepower (Boiler)?

The formula to convert BTU/Hour to Horsepower (Boiler) is: hp (S) = BTU/h × 0.0000298762. For example, to convert 10 BTU/Hour to Horsepower (Boiler), you would multiply 10 by 2.987625e-5.

What is a BTU/Hour?