Poundal (pdl)
Force that gives one pound an acceleration of one foot per second squared: 0.45359237 kg × 0.3048 m/s².
What is a poundal?
- Symbol
- pdl
- Quantity
- Force
- Unit system
- imperial
- Definition
- Force that gives one pound an acceleration of one foot per second squared: 0.45359237 kg × 0.3048 m/s².
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
A unit of the foot-pound-second system, mostly found in physics textbooks and older British literature.
Poundal in other force units
- 1 pdl = 138.254954376 mNMillinewton
- 1 pdl = 0.138254954376 NNewton
- 1 pdl = 0.000138254954376 kNKilonewton
- 1 pdl = 1.38254954376e-7 MNMeganewton
- 1 pdl = 13825.4954376 dynDyne
- 1 pdl ≈ 14.09808185 gfGram-force
- 1 pdl ≈ 0.01409808185 kgfKilogram-force
- 1 pdl ≈ 0.00001409808185 tfTonne-force (metric)
- 1 pdl ≈ 0.4972952027 ozfOunce-force
- 1 pdl ≈ 0.03108095017 lbfPound-force
- 1 pdl ≈ 0.00003108095017 kipKip-force
- 1 pdl ≈ 0.00001554047509 tonf (US)Short ton-force (US)
- 1 pdl ≈ 0.00001387542418 tonf (UK)Long ton-force (UK)
Poundal quick reference
| Poundal | Newton | Pound-force | Millinewton |
|---|---|---|---|
| 1 pdl | = 0.138254954376 N | ≈ 0.03108095017 lbf | = 138.254954376 mN |
| 10 pdl | = 1.38254954376 N | ≈ 0.3108095017 lbf | = 1382.54954376 mN |
| 100 pdl | = 13.8254954376 N | ≈ 3.108095017 lbf | = 13825.4954376 mN |
| 1000 pdl | = 138.254954376 N | ≈ 31.08095017 lbf | = 138254.954376 mN |
Where the poundal fits
The next smaller force unit is the gram-force (gf). 1 pdl ≈ 14.09808185 gf, and 1 gf ≈ 0.07093163528 pdl.
The next larger force unit is the ounce-force (ozf). 1 pdl ≈ 0.4972952027 ozf, and 1 ozf ≈ 2.010878035 pdl.
Frequently asked questions
- How many newtons are in one poundal?
- One poundal = 0.138254954376 N (newtons).
- How many pounds-force are in one poundal?
- One poundal ≈ 0.03108095017 lbf (pounds-force).
- How many millinewtons are in one poundal?
- One poundal = 138.254954376 mN (millinewtons).