Horsepower (Boiler) to Foot-Pound/Second Converter

Power Converter

22 units available

Decimals:

From

To

7,235.115904

1 hp (S) = 7,235.115904 ft·lbf/s

Formula:

ft·lbf/s = hp (S) × 7,235.1159035029

With your value: 1 hp (S) = 7,235.1159035 ft·lbf/s

How big is that?

Everyday references on a logarithmic scale, all expressed in horsepower (boiler) so you can sanity-check the result.

LED bulb (1/1.1e+3 your value)0.000917 hp (S)

Laptop (1/1.5e+2 your value)0.00663 hp (S)

Microwave oven (1/9.8 your value)0.102 hp (S)

Electric kettle (1/3.3 your value)0.306 hp (S)

Your value1.00 hp (S)

Family car engine (9.2× your value)9.17 hp (S)

Other Horsepower (Boiler) to Foot-Pound/Second conversions

2 hp (S) to ft·lbf/s 3 hp (S) to ft·lbf/s 4 hp (S) to ft·lbf/s 5 hp (S) to ft·lbf/s 6 hp (S) to ft·lbf/s 7 hp (S) to ft·lbf/s 8 hp (S) to ft·lbf/s

Horsepower (Boiler) to Foot-Pound/Second Conversion Table

Horsepower (Boiler) (hp (S))	Foot-Pound/Second (ft·lbf/s)
0.5	3,617.557952
1	7,235.115904
2	14,470.231807
5	36,175.579518
10	72,351.159035
15	108,526.738553
20	144,702.31807
25	180,877.897588
50	361,755.795175
100	723,511.59035
250	1,808,778.975876
500	3,617,557.951751
1000	7,235,115.903503

Foot-Pound/Second to Horsepower (Boiler) Conversion Table

Foot-Pound/Second (ft·lbf/s)	Horsepower (Boiler) (hp (S))
0.5	6.910739e-5
1	0.000138
2	0.000276
5	0.000691
10	0.001382
15	0.002073
20	0.002764
25	0.003455
50	0.006911
100	0.013821
250	0.034554
500	0.069107
1000	0.138215

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.

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

Foot-Pound/Second (ft·lbf/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 Horsepower (Boiler) to Foot-Pound/Second

To convert from Horsepower (Boiler) (hp (S)) to Foot-Pound/Second (ft·lbf/s), multiply the value by 7,235.1159035029.

Formula: ft·lbf/s = hp (S) × 7,235.1159035029

Reverse: hp (S) = ft·lbf/s × 0.0001382148

Step-by-Step Example

Start with your value in Horsepower (Boiler). For example: 5 hp (S)
Multiply by the conversion factor: 5 x 7,235.1159035029
The result is: 36,175.579518 ft·lbf/s

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.

About Foot-Pound/Second

The foot-pound/second (ft·lbf/s) is a unit of power. One foot-pound/second equals 1.355817948 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 Foot-Pound/Second are in 1 Horsepower (Boiler)?

There are exactly 7,235.1159035029 Foot-Pound/Second in 1 Horsepower (Boiler). This means the conversion factor from Horsepower (Boiler) to Foot-Pound/Second is 7,235.1159035029.

What is the formula to convert Horsepower (Boiler) to Foot-Pound/Second?

The formula to convert Horsepower (Boiler) to Foot-Pound/Second is: ft·lbf/s = hp (S) × 7,235.1159035029. For example, to convert 10 Horsepower (Boiler) to Foot-Pound/Second, you would multiply 10 by 7,235.1159035029.

What is a Horsepower (Boiler)?