Pounds per Minute to Pounds per Hour (lb/min to lb/h)
1 pound per minute (lb/min) = 60 pounds per hour (lb/h). 1 lb/h = 0.01666666667 lb/min. Example: 15 lb/min = 15 × 60 = 900 lb/h.
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1 lb/min = 60 lb/h
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound per minute to pound per hour converter to paste a column from Excel.
How to Convert Pound per Minute to Pound per Hour
- 1 lb/min = 60 lb/h
- 1 lb/h = 0.01666666667 lb/min
- Example: convert 15 lb/min to lb/h: 15 lb/min = 15 × 60 lb/h = 900 lb/h
Formula
lb/h = lb/min × 60
Derivation from SI units:
- 1 lb/min = 0.45359237/60 kg/s.
- 1 lb/h = 0.45359237/3600 kg/s.
- 1 lb/min = 0.007559872833333 kg/s ÷ 0.0001259978805556 kg/s per lb/h = 60 lb/h
Both units are defined exactly, so the factor is exact. Pound per Minute definition: pound per minute; Pound per Hour definition: pound per hour.
Worked examples
- A reading of 5 lb/min converts to 300 lb/h.
5 lb/min × 60 = 300 lb/h - A value of 50 lb/min is 3000 lb/h.
50 lb/min × 60 = 3000 lb/h
Pound per Minute to Pound per Hour conversion table
| Pounds per Minute (lb/min) | Pounds per Hour (lb/h) |
|---|---|
| 0.5 lb/min | 30 lb/h |
| 1 lb/min | 60 lb/h |
| 2 lb/min | 120 lb/h |
| 5 lb/min | 300 lb/h |
| 10 lb/min | 600 lb/h |
| 20 lb/min | 1200 lb/h |
| 50 lb/min | 3000 lb/h |
| 100 lb/min | 6000 lb/h |
| 200 lb/min | 12000 lb/h |
| 500 lb/min | 30000 lb/h |
Where it's used
Pounds per Minute are used for refrigerant mass flow in US HVAC, 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 Minute to other mass flow rate units
| Conversion | 1 lb/min equals |
|---|---|
| pound per minute to pound per hour | 60 lb/h |
| pound per minute to kilogram per second | 0.007559872833 kg/s |
| pound per minute to kilogram per hour | 27.2155422 kg/h |
| pound per minute to tonne per hour | 0.0272155422 t/h |
| pound per minute to tonne per day | 0.6531730128 t/day |
| pound per minute to gram per second | 7.559872833 g/s |
| pound per minute to kilogram per minute | 0.45359237 kg/min |
| pound per minute to pound per second | 0.01666666667 lb/s |
Frequently asked questions
How many pounds per hour are in 1 pound per minute?
1 lb/min = 60 lb/h.
How do I convert pounds per minute to pounds per hour?
Multiply the value in lb/min by 60. For example, 15 lb/min × 60 = 900 lb/h.
Is the lb/min 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 minute".
- 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). Pounds per Minute to Pounds per Hour (lb/min to lb/h). Retrieved October 29, 2026, from https://scientificconverters.com/mass-flow-rate/pounds-per-minute-to-pounds-per-hour/
IEEE
Scientific Converters, "Pounds per Minute to Pounds per Hour (lb/min to lb/h)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/mass-flow-rate/pounds-per-minute-to-pounds-per-hour/