Convert Foot-pound per second to BTU per hour

One ft·lbf/s equals 4.626242868 BTU/h. This converter allows you to easily convert between Foot-pound per second and BTU per hour in real time.

Formula

ft·lbf/s × 4.626242868 = BTU/h

Example: 1 ft·lbf/s = 4.626242868 BTU/h

What is Foot-pound per second?

The foot-pound per second is the fundamental unit of power in the imperial system, representing one foot-pound of work performed per second. It equals approximately 1.356 watts. Historically, James Watt defined one horsepower as 550 foot-pounds per second, making this unit the foundation of the horsepower concept. While rarely used directly in modern practice, it appears in engineering unit conversions and historical technical literature.

What is BTU per hour?

BTU per hour is a unit of power used primarily in the American HVAC industry for rating heating and cooling capacity. Residential air conditioners range from about 5,000 to 25,000 BTU/h, with 12,000 BTU/h equaling one ton of refrigeration. Gas furnaces and boilers are also rated in BTU/h. One BTU/h equals approximately 0.293 watts.