Convert Pounds per Hour to Kilograms per Hour (lb/h to kg/h)
1 pound per hour (lb/h) = 0.45359237 kilograms per hour (kg/h). 1 kg/h = 2.204622622 lb/h. Example: 10000 lb/h = 10000 × 0.45359237 = 4535.9237 kg/h.
Also searched as lb/hr to kg/hr, pounds per hour to kilograms per hour and pph to kg/h.
1 lb/h = 0.45359237 kg/h
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound per hour to kilogram per hour converter to paste a column from Excel.
How to Convert Pound per Hour to Kilogram per Hour
- 1 lb/h = 0.45359237 kg/h
- 1 kg/h = 2.204622622 lb/h
- Example: convert 10000 lb/h to kg/h: 10000 lb/h = 10000 × 0.45359237 kg/h = 4535.9237 kg/h
Formula
kg/h = lb/h × 0.45359237
or kg/h = lb/h ÷ 2.204622621849
Derivation from SI units:
- 1 lb/h = 0.45359237/3600 kg/s.
- 1 kg/h = 1/3600 kg/s.
- 1 lb/h = 0.0001259978805556 kg/s ÷ 0.0002777777777778 kg/s per kg/h = 0.45359237 kg/h
Both units are defined exactly, so the factor is exact. Pound per Hour definition: pound per hour; Kilogram per Hour definition: kilogram per hour.
Worked examples
- A steam flow of 10000 lb/h is 4535.9237 kg/h.
10000 lb/h × 0.45359237 = 4535.9237 kg/h - 1000 lb/h is 453.59237 kg/h.
1000 lb/h × 0.45359237 = 453.59237 kg/h
Pound per Hour to Kilogram per Hour conversion table
| Pounds per Hour (lb/h) | Kilograms per Hour (kg/h) |
|---|---|
| 10 lb/h | 4.5359237 kg/h |
| 100 lb/h | 45.359237 kg/h |
| 500 lb/h | 226.796185 kg/h |
| 1000 lb/h | 453.59237 kg/h |
| 5000 lb/h | 2267.96185 kg/h |
| 10000 lb/h | 4535.9237 kg/h |
| 25000 lb/h | 11339.80925 kg/h |
| 50000 lb/h | 22679.6185 kg/h |
| 100000 lb/h | 45359.237 kg/h |
| 500000 lb/h | 226796.185 kg/h |
Where it's used
US steam and process flows in lb/h are converted to kg/h. Multiply by 0.45359237.
Pound per Hour to other mass flow rate units
| Conversion | 1 lb/h equals |
|---|---|
| pound per hour to kilogram per hour | 0.45359237 kg/h |
| pound per hour to kilogram per second | 0.0001259978806 kg/s |
| pound per hour to tonne per hour | 0.00045359237 t/h |
| pound per hour to tonne per day | 0.01088621688 t/day |
| pound per hour to gram per second | 0.1259978806 g/s |
| pound per hour to kilogram per minute | 0.007559872833 kg/min |
| pound per hour to pound per second | 0.0002777777778 lb/s |
| pound per hour to pound per minute | 0.01666666667 lb/min |
Frequently asked questions
How many kg/h is 1 lb/h?
1 lb/h = 0.45359237 kg/h.
How many kilograms per hour are in 1 pound per hour?
1 lb/h = 0.45359237 kg/h.
How do I convert pounds per hour to kilograms per hour?
Multiply the value in lb/h by 0.45359237, or divide it by 2.204622622. For example, 10000 lb/h × 0.45359237 = 4535.9237 kg/h.
Is the lb/h to kg/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 hour".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units with special names).
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 Hour to Kilograms per Hour (lb/h to kg/h). Retrieved October 29, 2026, from https://scientificconverters.com/mass-flow-rate/pounds-per-hour-to-kilograms-per-hour/
IEEE
Scientific Converters, "Convert Pounds per Hour to Kilograms per Hour (lb/h to kg/h)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/mass-flow-rate/pounds-per-hour-to-kilograms-per-hour/