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Result
1 BTU/hour = 0.21615775 Foot-pounds/second
Convert between watts, horsepower, BTU, and other power units used in engineering and industry.
| BTU/hour (BTU/h) | Foot-pounds/second (ft·lbf/s) |
|---|---|
| 1 BTU/h | 0.21615775 ft·lbf/s |
| 2 BTU/h | 0.4323155 ft·lbf/s |
| 5 BTU/h | 1.08078875 ft·lbf/s |
| 10 BTU/h | 2.1615775 ft·lbf/s |
| 25 BTU/h | 5.40394374 ft·lbf/s |
| 50 BTU/h | 10.80788748 ft·lbf/s |
| 100 BTU/h | 21.61577496 ft·lbf/s |
| 250 BTU/h | 54.03943739 ft·lbf/s |
| 500 BTU/h | 108.07887478 ft·lbf/s |
| 1000 BTU/h | 216.15774955 ft·lbf/s |
Formula
Foot-pounds/second = BTU/hour × 0.21615775
Worked Example
Example: 5 BTU/hour = 5 × 0.21615775 = 1.08078875 Foot-pounds/second
To convert BTU/hour to Foot-pounds/second, multiply the BTU/hour value by 0.21615775. This factor is derived from the ratio between the two units.
BTU per hour is a unit of power used in the heating, ventilation, and air conditioning (HVAC) industry. One BTU/h represents the rate of energy needed to raise one pound of water by one degree Fahrenheit per hour.
History
The British Thermal Unit originated in the 1850s and became the standard unit for heating and cooling capacity in the United States. Air conditioners and furnaces are rated in BTU/h. A typical window AC unit is rated at 5,000-12,000 BTU/h.
Foot-pounds per second is an imperial unit of power measuring the rate of work done. One foot-pound per second equals the energy transferred when one pound of force moves an object one foot in one second.
History
Foot-pounds per second is derived from the fundamental imperial units of force (pound-force) and distance (foot). It predates the horsepower and watt as a unit of power measurement. One horsepower equals 550 foot-pounds per second.
Calculated using the latest NIST standards for physical constants and unit ratios.
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