Foot-pounds-force per second to watts

Type a value in foot-pounds-force per second to see it in watts straight away, or type in the second box to convert back.

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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.

How to use it

  1. Type the value in the foot-pounds-force per second box.
  2. Read the result in watts as you type, and pick the precision you need.
  3. Swap the direction to convert back, or copy the result.

How it is calculated

W = ft·lbf/s × 1.355817948

Multiply the value in foot-pounds-force per second by 1.355817948 to get watts.

Example

To convert 25 ft·lbf/s to watts: 25 × 1.355817948 = 33.8954 W.

Conversion table

Foot-pounds-force per second (ft·lbf/s)Watts (W)
11.35582
22.71164
34.06745
56.77909
1013.5582
2027.1164
2533.8954
5067.7909
100135.582
250338.954
500677.909
1,0001,355.82

About the units

Foot-pound-force per second
One foot-pound-force per second is exactly 1.3558179483314004 watts, the imperial engineering unit of power.
Watt
The SI unit of power, equal to one joule per second.

Limits and caveats

  • Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
  • Both unit factors are exact by their official definitions.

Questions about this tool

How many watts are in one foot-pound-force per second?

1 ft·lbf/s = 1.35582 W exactly.

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

Use W = ft·lbf/s × 1.355817948. For example, 25 ft·lbf/s = 33.8954 W.

How many foot-pounds-force per second are in one watt?

1 W = 0.737562 ft·lbf/s.

What is the difference between mechanical and metric horsepower?

Mechanical horsepower is about 745.7 watts and is used in the US, while metric horsepower (PS) is 735.5 watts and is used in Europe and Japan. The same engine therefore shows a PS figure about 1.4% higher.

How many kilowatts is one ton of refrigeration?

One ton of refrigeration is 12000 BTU per hour, about 3.517 kW of cooling capacity. That is cooling output, not electricity use; the unit draws less power depending on its efficiency.