Convert Pound-force Seconds to Newton Seconds
1 pound-force second = 4.4482216 newton seconds. Multiply the number of pound-force seconds by 4.44822161526.
1 lbf·s = 4.448221615 N·s
Multiply the number of pound-force seconds by 4.44822161526.
Results are rounded for display. Double-check values for critical work.
Popular momentum & impulse conversions
Pound-force Seconds to Newton Seconds table
| Pound-force Seconds | Newton Seconds |
|---|---|
| 1 lbf·s | 4.4482216 N·s |
| 2 lbf·s | 8.8964432 N·s |
| 3 lbf·s | 13.344665 N·s |
| 4 lbf·s | 17.792886 N·s |
| 5 lbf·s | 22.241108 N·s |
| 10 lbf·s | 44.482216 N·s |
| 20 lbf·s | 88.964432 N·s |
| 25 lbf·s | 111.20554 N·s |
| 50 lbf·s | 222.41108 N·s |
| 100 lbf·s | 444.82216 N·s |
| 500 lbf·s | 2,224.1108 N·s |
| 1000 lbf·s | 4,448.2216 N·s |
Pound-force Seconds to Newton Seconds in your head
Multiply by 9, then divide by 2.
That lands within 1% of the exact value.
10 lbf·s → 45 N·s in your head, 44.4822 N·s exactly.
About these units
The pound-force second (lbf·s) is an imperial unit of momentum & impulse, equal to 4.4482216 kilogram meters per second.
The newton second (N·s) is an SI base or derived unit of momentum & impulse, equal to 1 kilogram meters per second.
Going the other way, 1 newton second = 0.22480894 pound-force seconds. Momentum is mass times velocity, and impulse, force times time, is measured in exactly the same units: 1 N·s equals 1 kg·m/s. Physics problems, ballistics and rocket motor ratings use them.
Frequently asked
- How many newton seconds are in a pound-force second?
- 1 pound-force second = 4.4482216 newton seconds.
- How do you convert pound-force seconds to newton seconds?
- Multiply the number of pound-force seconds by 4.44822161526.
- What is 10 lbf·s in N·s?
- 10 lbf·s = 44.482216 N·s.