Convert Foot-pounds per Second to Kilocalories per Hour
1 foot-pound per second (ft·lbf/s) equals 1.165793593 kilocalories per hour (kcal/h).
1 ft·lbf/s = 1.165793593 kcal/h
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk foot-pound per second to kilocalorie per hour converter to paste a column from Excel.
How to Convert Foot-pound per Second to Kilocalorie per Hour
- 1 ft·lbf/s = 1.165793593 kcal/h
- 1 kcal/h = 0.8577847796 ft·lbf/s
- Example: convert 15 ft·lbf/s to kcal/h: 15 ft·lbf/s = 15 × 1.165793593 kcal/h = 17.48690389 kcal/h
Reference conditions. kcal/h: Uses the International Table kilocalorie (4186.8 J), the convention in heating and HVAC: 1 kcal/h = 1.163 W.
Formula
kcal/h = ft·lbf/s × 1.165793592718
Derivation from SI units:
- 1 ft·lbf/s = 1.3558179483314 W
- 1 kcal_IT/h = 4186.8 J ÷ 3600 s = 1.163 W (exact)
- 1 ft·lbf/s = 1.355817948331 W ÷ 1.163 W per kcal/h = 1.165793592718 kcal/h
Both units are defined exactly, so the factor is exact. Foot-pound per Second definition: foot-pound per second; Kilocalorie per Hour definition: kilocalorie per hour.
Worked examples
- A reading of 100 ft·lbf/s converts to 116.5793593 kcal/h.
100 ft·lbf/s × 1.165793593 = 116.5793593 kcal/h - A value of 1000 ft·lbf/s is 1165.793593 kcal/h.
1000 ft·lbf/s × 1.165793593 = 1165.793593 kcal/h
Foot-pound per Second to Kilocalorie per Hour conversion table
| Foot-pounds per Second (ft·lbf/s) | Kilocalories per Hour (kcal/h) |
|---|---|
| 1 ft·lbf/s | 1.165793593 kcal/h |
| 10 ft·lbf/s | 11.65793593 kcal/h |
| 50 ft·lbf/s | 58.28967964 kcal/h |
| 100 ft·lbf/s | 116.5793593 kcal/h |
| 250 ft·lbf/s | 291.4483982 kcal/h |
| 550 ft·lbf/s | 641.186476 kcal/h |
| 1000 ft·lbf/s | 1165.793593 kcal/h |
| 2750 ft·lbf/s | 3205.93238 kcal/h |
| 5000 ft·lbf/s | 5828.967964 kcal/h |
| 10000 ft·lbf/s | 11657.93593 kcal/h |
Where it's used
Foot-pounds per Second are used for mechanics problems in US units, while kilocalories per hour appear in radiator and boiler ratings in older European data. Both measure power (energy per unit time), so the conversion is a fixed factor.
Foot-pound per Second to other power units
| Conversion | 1 ft·lbf/s equals |
|---|---|
| foot-pound per second to watt | 1.355817948 W |
| foot-pound per second to milliwatt | 1355.817948 mW |
| foot-pound per second to kilowatt | 0.001355817948 kW |
| foot-pound per second to megawatt | 0.000001355817948 MW |
| foot-pound per second to horsepower | 0.001818181818 hp |
| foot-pound per second to metric horsepower | 0.001843399392 PS |
| foot-pound per second to BTU per hour | 4.626242868 BTU/h |
| foot-pound per second to refrigeration ton | 0.000385520239 TR |
| foot-pound per second to kilocalorie per hour | 1.165793593 kcal/h |
Frequently asked questions
How many kilocalories per hour are in 1 foot-pound per second?
1 ft·lbf/s = 1.165793593 kcal/h.
How do I convert foot-pounds per second to kilocalories per hour?
Multiply the value in ft·lbf/s by 1.165793593. For example, 15 ft·lbf/s × 1.165793593 = 17.48690389 kcal/h.
Is the ft·lbf/s to kcal/h conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "foot pound-force per second".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "calorie_IT" with hour.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Foot-pounds per Second to Kilocalories per Hour. Retrieved October 17, 2026, from https://scientificconverters.com/power/foot-pounds-per-second-to-kilocalories-per-hour/
IEEE
Scientific Converters, "Convert Foot-pounds per Second to Kilocalories per Hour," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/foot-pounds-per-second-to-kilocalories-per-hour/