Convert foot-pounds per second to watts

1 ft·lbf/s=1.35582W

Use the converter below to change any foot-pounds per second value into watts instantly — with formula, conversion table, and real-world examples.

You have

Equals

1.355818

Conversion formula

Forward

watts = foot-pounds per second × 1.35582

Reverse

foot-pounds per second = watts × 0.7376

Example: 10 ft·lbf/s × 1.35582 = 13.5582 W.

About both units

From

Foot-Pound per Second

ft·lbf/s

Foot-pound per second equals 1.356 watts. Historical US mechanical-engineering unit, now largely replaced by watts or hp. Still appears in older engineering texts.

Real-world: Largely historical; modern specs use W or hp.

Read full foot-pound per second reference →

Watt

The watt is the SI unit of power — 1 joule per second. Named after James Watt. Common examples: LED bulb 5–10 W, laptop 45–100 W, kettle 2000–3000 W, car engine 50,000+ W.

Real-world: LED bulb: 5–10 W. Laptop: 45 W. Kettle: 2200 W. Oven: 2000 W. Sun per m² on Earth: 1361 W/m².

Read full watt reference →

Foot-Pound per Second to Watt conversion table

Common foot-pounds per second to watts values for quick reference.

Foot-Pound per Second (ft·lbf/s)	Watt (W)
1 ft·lbf/s	1.35582 W
5 ft·lbf/s	6.77909 W
10 ft·lbf/s	13.5582 W
50 ft·lbf/s	67.7909 W
100 ft·lbf/s	135.582 W
500 ft·lbf/s	677.909 W
1,000 ft·lbf/s	1,355.82 W
5,000 ft·lbf/s	6,779.09 W
10,000 ft·lbf/s	13,558.18 W
50,000 ft·lbf/s	67,790.9 W

Tips & common mistakes

Quick tips

1 ft·lbf/s = 1.356 W.
550 ft·lbf/s = 1 mechanical hp.
Rarely needed today outside archival references.

Avoid these

Confusing ft·lbf/s (power) with ft·lbf (torque or work).
Using in modern specifications — prefer W or kW.
Mixing with foot-pound (energy) in same calculation.

Frequently asked questions

How many watts in a foot-pound per second?

One foot-pound per second equals 1.35582 watts.

How do I convert foot-pounds per second to watts?

Multiply the foot-pound per second value by 1.35582 to get the equivalent in watts.

What is 100 foot-pounds per second in watts?

100 foot-pounds per second equals 135.582 watts.

Is a foot-pound per second bigger than a watt?

Yes. 1 foot-pound per second equals 1.35582 watts, so one foot-pound per second is larger.

How to convert foot-pounds per second to watts without a calculator?

Multiply by 1.36 for a quick estimate; use a calculator for precise results.

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