Pound per Second (lb/s)
Pounds per second rate jet-engine and gas-turbine air flow in US practice.
Symbol: lb/s
Quantity: mass flow rate ṁ
SI relation: 1 lb/s = 0.45359237 kg/s (exact)
Derivation: 1 lb/s = 0.45359237 kg/s.
Exact: yes, by definition
Typical uses
- Gas turbine and jet engine air flow
- US aerospace propulsion data
Convert pounds per second to other units
| Conversion | 1 lb/s equals | Reverse |
|---|---|---|
| pound per second to kilogram per second | 0.45359237 kg/s | kilogram per second to pound per second |
| pound per second to kilogram per hour | 1632.932532 kg/h | kilogram per hour to pound per second |
| pound per second to tonne per hour | 1.632932532 t/h | tonne per hour to pound per second |
| pound per second to tonne per day | 39.19038077 t/day | tonne per day to pound per second |
| pound per second to pound per hour | 3600 lb/h | pound per hour to pound per second |
| pound per second to gram per second | 453.59237 g/s | gram per second to pound per second |
| pound per second to kilogram per minute | 27.2155422 kg/min | kilogram per minute to pound per second |
| pound per second to pound per minute | 60 lb/min | pound per minute to pound per second |
Open the Mass Flow Rate Converter (kg/s, kg/h, t/h, lb/h) to convert any value between all units.
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".
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). Pound per Second (lb/s). Retrieved October 29, 2026, from https://scientificconverters.com/units/pound-per-second/
IEEE
Scientific Converters, "Pound per Second (lb/s)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/pound-per-second/