Ounce-force.
Ounce-forces to Femtonewtons Converter — ozf to fN
Convert Ounce-force (ozf) to Femtonewton (fN) using the exact conversion factor (1 ounce-force = 2.780139e+14 femtonewton). See the formula, worked examples, and conversion table.
Ounce-forces to Femtonewtons converter
Converter
Force Converter
Convert newtons, dynes, pound-force, kilogram-force, kips, and ounce-force.
Context values
Some unit families need one extra value for a physically accurate result.
Femtonewton is 1e-15 newton units.
Result = input x 0.278013851 / 1e-15.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounce-forces to Femtonewtons
Ounce-force and Femtonewton both measure force, and the conversion matters whenever an SI-trained engineer needs to compare notes with a US-trained one, or vice versa. Specifically: Ounce-force, and femtonewton is 1e-15 newton units.
Formula
femtonewtons = ounce-forces × 2.780139e+14
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce-force equals 0.278013850954 base units, and 1 femtonewton equals 1e-15 base units, so dividing one by the other gives the direct ounce-force-to-femtonewton factor of 2.780139e+14.
Simple example
1 ozf × 2.780139e+14 = 2.780139e+14 fN
1 ounce-force = 2.780139e+14 femtonewtons.
Real-world example
10 ozf × 2.780139e+14 = 2.780139e+15 fN
10 ounce-forces = 2.780139e+15 femtonewtons.
Conversion table
| Ounce-force (ozf) | Femtonewton (fN) |
|---|---|
| 1 ozf | 2.780139e+14 fN |
| 5 ozf | 1.390069e+15 fN |
| 10 ozf | 2.780139e+15 fN |
| 50 ozf | 1.390069e+16 fN |
| 100 ozf | 2.780139e+16 fN |
| 1,000 ozf | 2.780139e+17 fN |
Reverse conversion: Femtonewton to Ounce-force
2.780139e+14 fN × 3.596943e-15 = 1.000000176 ozf
2.780139e+14 femtonewtons = 1.000000176 ounce-forces.
ounce-forces = femtonewtons × 3.596943e-15
For a page dedicated to this direction, see Femtonewton to Ounce-force.
Understanding the Ounce-force (ozf)
Ounce-force.
Understanding the Femtonewton (fN)
Femtonewton is 1e-15 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtonewtons are in 1 ounce-force?
1 ounce-force equals 2.780139e+14 femtonewtons, using the exact defined conversion factor rather than an estimate.
How do I convert ounce-force to femtonewton?
Multiply the ounce-force value by 2.780139e+14. The converter above does this instantly to whatever precision you set.
How do I convert femtonewton back to ounce-force?
Use the reverse factor: 1 femtonewton equals 3.596943e-15 ounce-forces. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce-force?
Ounce-force (ozf) is a unit of force.
What is a femtonewton?
Femtonewton (fN) is a unit of force.
Is the ounce-force to femtonewton conversion exact?
Yes. Both ounce-force and femtonewton are defined by fixed standards rather than physical artifacts, so the factor of 2.780139e+14 used above is exact to as many digits as you choose to display.