Convert Pounds per Second to Pounds per Hour (lb/s to lb/h)
1 pound per second (lb/s) = 3600 pounds per hour (lb/h). 1 lb/h = 0.0002777777778 lb/s. Example: 15 lb/s = 15 × 3600 = 54000 lb/h.
Also searched as pounds per second to lb/h, pounds per second in lb/h, pounds per second into pounds per hour, lb/s to lb/h, lb/s in pounds per hour, lb/s into pound per hour, pound per second to pound per hour, lb/s to pounds per hour converter and how many pounds per hour in a pound per second.
1 lb/s = 3600 lb/h
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound per second to pound per hour converter to paste a column from Excel.
How to Convert Pound per Second to Pound per Hour
- 1 lb/s = 3600 lb/h
- 1 lb/h = 0.0002777777778 lb/s
- Example: convert 15 lb/s to lb/h: 15 lb/s = 15 × 3600 lb/h = 54000 lb/h
Formula
lb/h = lb/s × 3600
Derivation from SI units:
- 1 lb/s = 0.45359237 kg/s.
- 1 lb/h = 0.45359237/3600 kg/s.
- 1 lb/s = 0.45359237 kg/s ÷ 0.0001259978805556 kg/s per lb/h = 3600 lb/h
Both units are defined exactly, so the factor is exact. Pound per Second definition: pound per second; Pound per Hour definition: pound per hour.
Worked examples
- A reading of 10 lb/s converts to 36000 lb/h.
10 lb/s × 3600 = 36000 lb/h - A value of 200 lb/s is 720000 lb/h.
200 lb/s × 3600 = 720000 lb/h
Pound per Second to Pound per Hour conversion table
| Pounds per Second (lb/s) | Pounds per Hour (lb/h) |
|---|---|
| 0.1 lb/s | 360 lb/h |
| 1 lb/s | 3600 lb/h |
| 5 lb/s | 18000 lb/h |
| 10 lb/s | 36000 lb/h |
| 50 lb/s | 180000 lb/h |
| 100 lb/s | 360000 lb/h |
| 200 lb/s | 720000 lb/h |
| 500 lb/s | 1800000 lb/h |
| 1000 lb/s | 3600000 lb/h |
| 2000 lb/s | 7200000 lb/h |
Where it's used
Pounds per Second are used for gas turbine and jet engine air flow, while pounds per hour appear in US boiler and steam ratings. Both measure mass flow rate ṁ, so the conversion is a fixed factor.
Pound per Second to other mass flow rate units
| Conversion | 1 lb/s equals |
|---|---|
| pound per second to pound per hour | 3600 lb/h |
| pound per second to kilogram per second | 0.45359237 kg/s |
| pound per second to kilogram per hour | 1632.932532 kg/h |
| pound per second to tonne per hour | 1.632932532 t/h |
| pound per second to tonne per day | 39.19038077 t/day |
| pound per second to gram per second | 453.59237 g/s |
| pound per second to kilogram per minute | 27.2155422 kg/min |
| pound per second to pound per minute | 60 lb/min |
Frequently asked questions
How many pounds per hour are in 1 pound per second?
1 lb/s = 3600 lb/h.
How do I convert pounds per second to pounds per hour?
Multiply the value in lb/s by 3600. For example, 15 lb/s × 3600 = 54000 lb/h.
Is the lb/s to lb/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, "pound 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, "pound per 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 Pounds per Second to Pounds per Hour (lb/s to lb/h). Retrieved October 29, 2026, from https://scientificconverters.com/mass-flow-rate/pounds-per-second-to-pounds-per-hour/
IEEE
Scientific Converters, "Convert Pounds per Second to Pounds per Hour (lb/s to lb/h)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/mass-flow-rate/pounds-per-second-to-pounds-per-hour/