Pound per square foot second (lb/(ft²·s))
One avoirdupois pound through one square foot every second.
What is a pound per square foot second?
- Symbol
- lb/(ft²·s)
- Quantity
- Mass Flux Density
- Unit system
- US customary
- Definition
- One avoirdupois pound through one square foot every second.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in US fluid mechanics and aerospace engineering for mass flow through ducts and nozzles.
Pound per square foot second in other mass flux density units
- 1 lb/(ft²·s) ≈ 4.882427636 kg/(m²·s)Kilogram per square meter second
- 1 lb/(ft²·s) ≈ 17576.73949 kg/(m²·h)Kilogram per square meter hour
- 1 lb/(ft²·s) ≈ 0.4882427636 g/(cm²·s)Gram per square centimeter second
- 1 lb/(ft²·s) = 3600 lb/(ft²·h)Pound per square foot hour
Pound per square foot second quick reference
| Pound per square foot second | Kilogram per square meter second | Pound per square foot hour | Kilogram per square meter hour |
|---|---|---|---|
| 1 lb/(ft²·s) | ≈ 4.882427636 kg/(m²·s) | = 3600 lb/(ft²·h) | ≈ 17576.73949 kg/(m²·h) |
| 10 lb/(ft²·s) | ≈ 48.82427636 kg/(m²·s) | = 36000 lb/(ft²·h) | ≈ 175767.3949 kg/(m²·h) |
| 100 lb/(ft²·s) | ≈ 488.2427636 kg/(m²·s) | = 360000 lb/(ft²·h) | ≈ 1757673.949 kg/(m²·h) |
| 1000 lb/(ft²·s) | ≈ 4882.427636 kg/(m²·s) | = 3600000 lb/(ft²·h) | ≈ 17576739.49 kg/(m²·h) |
Where the pound per square foot second fits
The next smaller mass flux density unit is the kilogram per square meter second (kg/(m²·s)). 1 lb/(ft²·s) ≈ 4.882427636 kg/(m²·s), and 1 kg/(m²·s) ≈ 0.2048161436 lb/(ft²·s).
The next larger mass flux density unit is the gram per square centimeter second (g/(cm²·s)). 1 lb/(ft²·s) ≈ 0.4882427636 g/(cm²·s), and 1 g/(cm²·s) ≈ 2.048161436 lb/(ft²·s).
Frequently asked questions
- How many kilograms per square meter second are in one pound per square foot second?
- One pound per square foot second ≈ 4.882427636 kg/(m²·s) (kilograms per square meter second).
- How many pounds per square foot hour are in one pound per square foot second?
- One pound per square foot second = 3600 lb/(ft²·h) (pounds per square foot hour).
- How many kilograms per square meter hour are in one pound per square foot second?
- One pound per square foot second ≈ 17576.73949 kg/(m²·h) (kilograms per square meter hour).