Pound per Hour (lb/h)
Pounds per hour rate US boilers (lb/h of steam), fuel flows and process streams.
Symbol: lb/h
Quantity: mass flow rate ṁ
SI relation: 1 lb/h = 0.0001259978805556 kg/s (exact)
Derivation: 1 lb/h = 0.45359237/3600 kg/s.
Exact: yes, by definition
Typical uses
- US boiler and steam ratings
- Process stream tables in US units
Convert pounds per hour to other units
| Conversion | 1 lb/h equals | Reverse |
|---|---|---|
| pound per hour to kilogram per second | 0.0001259978806 kg/s | kilogram per second to pound per hour |
| pound per hour to kilogram per hour | 0.45359237 kg/h | kilogram per hour to pound per hour |
| pound per hour to tonne per hour | 0.00045359237 t/h | tonne per hour to pound per hour |
| pound per hour to tonne per day | 0.01088621688 t/day | tonne per day to pound per hour |
| pound per hour to gram per second | 0.1259978806 g/s | gram per second to pound per hour |
| pound per hour to kilogram per minute | 0.007559872833 kg/min | kilogram per minute to pound per hour |
| pound per hour to pound per second | 0.0002777777778 lb/s | pound per second to pound per hour |
| pound per hour to pound per minute | 0.01666666667 lb/min | pound per minute to pound per hour |
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 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). Pound per Hour (lb/h). Retrieved October 29, 2026, from https://scientificconverters.com/units/pound-per-hour/
IEEE
Scientific Converters, "Pound per Hour (lb/h)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/pound-per-hour/