Gram-force (gf)
Force of standard gravity on one gram: exactly 0.00980665 newtons.
What is a gram-force?
- Symbol
- gf
- Quantity
- Force
- Unit system
- metric
- Definition
- Force of standard gravity on one gram: exactly 0.00980665 newtons.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used for small forces such as key switch actuation and spring tension.
Gram-force in other force units
- 1 gf = 9.80665 mNMillinewton
- 1 gf = 0.00980665 NGram-force to Newton converter
- 1 gf = 0.00000980665 kNKilonewton
- 1 gf = 9.80665e-9 MNMeganewton
- 1 gf = 980.665 dynDyne
- 1 gf = 0.001 kgfKilogram-force
- 1 gf = 0.000001 tfTonne-force (metric)
- 1 gf ≈ 0.03527396195 ozfOunce-force
- 1 gf ≈ 0.002204622622 lbfPound-force
- 1 gf ≈ 0.000002204622622 kipKip-force
- 1 gf ≈ 0.000001102311311 tonf (US)Short ton-force (US)
- 1 gf ≈ 9.842065276e-7 tonf (UK)Long ton-force (UK)
- 1 gf ≈ 0.07093163528 pdlPoundal
Gram-force quick reference
| Gram-force | Newton | Pound-force | Millinewton |
|---|---|---|---|
| 1 gf | = 0.00980665 N | ≈ 0.002204622622 lbf | = 9.80665 mN |
| 10 gf | = 0.0980665 N | ≈ 0.02204622622 lbf | = 98.0665 mN |
| 100 gf | = 0.980665 N | ≈ 0.2204622622 lbf | = 980.665 mN |
| 1000 gf | = 9.80665 N | ≈ 2.204622622 lbf | = 9806.65 mN |
Where the gram-force fits
The next smaller force unit is the millinewton (mN). 1 gf = 9.80665 mN, and 1 mN ≈ 0.1019716213 gf.
The next larger force unit is the poundal (pdl). 1 gf ≈ 0.07093163528 pdl, and 1 pdl ≈ 14.09808185 gf.
Frequently asked questions
- How many newtons are in one gram-force?
- One gram-force = 0.00980665 N (newtons).
- How many pounds-force are in one gram-force?
- One gram-force ≈ 0.002204622622 lbf (pounds-force).
- How many millinewtons are in one gram-force?
- One gram-force = 9.80665 mN (millinewtons).