Horsepower (Elec) to Foot-Pound/Second Converter

Power Converter

22 units available

Decimals:

From

To

550.221363

1 hp (E) = 550.221363 ft·lbf/s

Formula:

ft·lbf/s = hp (E) × 550.2213633736

With your value: 1 hp (E) = 550.22136337 ft·lbf/s

How big is that?

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

LED bulb (1/83 your value)0.0121 hp (E)

Laptop (1/11 your value)0.0871 hp (E)

Your value1.00 hp (E)

Microwave oven (1.3× your value)1.34 hp (E)

Electric kettle (4.0× your value)4.02 hp (E)

Family car engine (1.2e+2× your value)121 hp (E)

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

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

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

Horsepower (Elec) (hp (E))	Foot-Pound/Second (ft·lbf/s)
0.5	275.110682
1	550.221363
2	1,100.442727
5	2,751.106817
10	5,502.213634
15	8,253.320451
20	11,004.427267
25	13,755.534084
50	27,511.068169
100	55,022.136337
250	137,555.340843
500	275,110.681687
1000	550,221.363374

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

Foot-Pound/Second (ft·lbf/s)	Horsepower (Elec) (hp (E))
0.5	0.000909
1	0.001817
2	0.003635
5	0.009087
10	0.018175
15	0.027262
20	0.036349
25	0.045436
50	0.090873
100	0.181745
250	0.454363
500	0.908725
1000	1.81745

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 (Elec) (hp (E))

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 (Elec) to Foot-Pound/Second

To convert from Horsepower (Elec) (hp (E)) to Foot-Pound/Second (ft·lbf/s), multiply the value by 550.2213633736.

Formula: ft·lbf/s = hp (E) × 550.2213633736

Reverse: hp (E) = ft·lbf/s × 0.0018174503

Step-by-Step Example

Start with your value in Horsepower (Elec). For example: 5 hp (E)
Multiply by the conversion factor: 5 x 550.2213633736
The result is: 2,751.106817 ft·lbf/s

About Horsepower (Elec)

The horsepower (elec) (hp (E)) is a unit of power. One horsepower (elec) equals 746 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 (Elec)?

There are exactly 550.2213633736 Foot-Pound/Second in 1 Horsepower (Elec). This means the conversion factor from Horsepower (Elec) to Foot-Pound/Second is 550.2213633736.

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

The formula to convert Horsepower (Elec) to Foot-Pound/Second is: ft·lbf/s = hp (E) × 550.2213633736. For example, to convert 10 Horsepower (Elec) to Foot-Pound/Second, you would multiply 10 by 550.2213633736.

What is a Horsepower (Elec)?