Convert Pounds per Hour to Tonnes per Hour (lb/h to t/h)
1 pound per hour (lb/h) = 0.00045359237 tonnes per hour (t/h). 1 t/h = 2204.622622 lb/h. Example: 15 lb/h = 15 × 0.00045359237 = 0.00680388555 t/h.
Also searched as pounds per hour to t/h, pounds per hour in t/h, pounds per hour into tonnes per hour, lb/h to t/h, lb/h in tonnes per hour, lb/h into tonne per hour, pound per hour to tonne per hour, lb/h to tonnes per hour converter and how many tonnes per hour in a pound per hour.
1 lb/h = 0.00045359237 t/h
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound per hour to tonne per hour converter to paste a column from Excel.
How to Convert Pound per Hour to Tonne per Hour
- 1 lb/h = 0.00045359237 t/h
- 1 t/h = 2204.622622 lb/h
- Example: convert 15 lb/h to t/h: 15 lb/h = 15 × 0.00045359237 t/h = 0.00680388555 t/h
Formula
t/h = lb/h × 0.00045359237
or t/h = lb/h ÷ 2204.622621849
Derivation from SI units:
- 1 lb/h = 0.45359237/3600 kg/s.
- 1 t/h = 1000/3600 kg/s ≈ 0.2778 kg/s.
- 1 lb/h = 0.0001259978805556 kg/s ÷ 0.2777777777778 kg/s per t/h = 0.00045359237 t/h
Both units are defined exactly, so the factor is exact. Pound per Hour definition: pound per hour; Tonne per Hour definition: tonne per hour.
Worked examples
- A reading of 1000 lb/h converts to 0.45359237 t/h.
1000 lb/h × 0.00045359237 = 0.45359237 t/h - A value of 25000 lb/h is 11.33980925 t/h.
25000 lb/h × 0.00045359237 = 11.33980925 t/h
Pound per Hour to Tonne per Hour conversion table
| Pounds per Hour (lb/h) | Tonnes per Hour (t/h) |
|---|---|
| 10 lb/h | 0.0045359237 t/h |
| 100 lb/h | 0.045359237 t/h |
| 500 lb/h | 0.226796185 t/h |
| 1000 lb/h | 0.45359237 t/h |
| 5000 lb/h | 2.26796185 t/h |
| 10000 lb/h | 4.5359237 t/h |
| 25000 lb/h | 11.33980925 t/h |
| 50000 lb/h | 22.6796185 t/h |
| 100000 lb/h | 45.359237 t/h |
| 500000 lb/h | 226.796185 t/h |
Where it's used
Pounds per Hour are used for US boiler and steam ratings, while tonnes per hour appear in boiler capacity (TPH). Both measure mass flow rate ṁ, so the conversion is a fixed factor.
Pound per Hour to other mass flow rate units
| Conversion | 1 lb/h equals |
|---|---|
| pound per hour to tonne per hour | 0.00045359237 t/h |
| pound per hour to kilogram per second | 0.0001259978806 kg/s |
| pound per hour to kilogram per hour | 0.45359237 kg/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 tonnes per hour are in 1 pound per hour?
1 lb/h = 0.00045359237 t/h.
How do I convert pounds per hour to tonnes per hour?
Multiply the value in lb/h by 0.00045359237, or divide it by 2204.622622. For example, 15 lb/h × 0.00045359237 = 0.00680388555 t/h.
Is the lb/h to t/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 Tonnes per Hour (lb/h to t/h). Retrieved October 29, 2026, from https://scientificconverters.com/mass-flow-rate/pounds-per-hour-to-tonnes-per-hour/
IEEE
Scientific Converters, "Convert Pounds per Hour to Tonnes per Hour (lb/h to t/h)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/mass-flow-rate/pounds-per-hour-to-tonnes-per-hour/