Pounds per Minute to Tonnes per Day (lb/min to t/day)
1 pound per minute (lb/min) = 0.6531730128 tonnes per day (t/day). 1 t/day = 1.530987932 lb/min. Example: 15 lb/min = 15 × 0.6531730128 = 9.797595192 t/day.
Also searched as pounds per minute to t/day, pounds per minute in t/day, pounds per minute into tonnes per day, lb/min to t/day, lb/min in tonnes per day, lb/min into tonne per day, pound per minute to tonne per day, lb/min to tonnes per day converter and how many tonnes per day in a pound per minute.
1 lb/min = 0.6531730128 t/day
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound per minute to tonne per day converter to paste a column from Excel.
How to Convert Pound per Minute to Tonne per Day
- 1 lb/min = 0.6531730128 t/day
- 1 t/day = 1.530987932 lb/min
- Example: convert 15 lb/min to t/day: 15 lb/min = 15 × 0.6531730128 t/day = 9.797595192 t/day
Formula
t/day = lb/min × 0.6531730128
or t/day = lb/min ÷ 1.530987931839
Derivation from SI units:
- 1 lb/min = 0.45359237/60 kg/s.
- 1 t/day = 1000/86,400 kg/s.
- 1 lb/min = 0.007559872833333 kg/s ÷ 0.01157407407407 kg/s per t/day = 0.6531730128 t/day
Both units are defined exactly, so the factor is exact. Pound per Minute definition: pound per minute; Tonne per Day definition: tonne per day.
Worked examples
- A reading of 5 lb/min converts to 3.265865064 t/day.
5 lb/min × 0.6531730128 = 3.265865064 t/day - A value of 50 lb/min is 32.65865064 t/day.
50 lb/min × 0.6531730128 = 32.65865064 t/day
Pound per Minute to Tonne per Day conversion table
| Pounds per Minute (lb/min) | Tonnes per Day (t/day) |
|---|---|
| 0.5 lb/min | 0.3265865064 t/day |
| 1 lb/min | 0.6531730128 t/day |
| 2 lb/min | 1.306346026 t/day |
| 5 lb/min | 3.265865064 t/day |
| 10 lb/min | 6.531730128 t/day |
| 20 lb/min | 13.06346026 t/day |
| 50 lb/min | 32.65865064 t/day |
| 100 lb/min | 65.31730128 t/day |
| 200 lb/min | 130.6346026 t/day |
| 500 lb/min | 326.5865064 t/day |
Where it's used
Pounds per Minute are used for refrigerant mass flow in US HVAC, while tonnes per day appear in chemical and fertiliser plant capacity. 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 tonne per day | 0.6531730128 t/day |
| 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 pound per hour | 60 lb/h |
| 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 tonnes per day are in 1 pound per minute?
1 lb/min = 0.6531730128 t/day.
How do I convert pounds per minute to tonnes per day?
Multiply the value in lb/min by 0.6531730128, or divide it by 1.530987932. For example, 15 lb/min × 0.6531730128 = 9.797595192 t/day.
Is the lb/min to t/day conversion exact?
Yes. Both units are defined exactly, and 1 lb/min is exactly 0.6531730128 t/day.
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".
- 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). Pounds per Minute to Tonnes per Day (lb/min to t/day). Retrieved October 29, 2026, from https://scientificconverters.com/mass-flow-rate/pounds-per-minute-to-tonnes-per-day/
IEEE
Scientific Converters, "Pounds per Minute to Tonnes per Day (lb/min to t/day)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/mass-flow-rate/pounds-per-minute-to-tonnes-per-day/