Ounce-force.
Ounce-forces to Attonewtons Converter — ozf to aN
Convert Ounce-force (ozf) to Attonewton (aN) using the exact conversion factor (1 ounce-force = 2.780139e+17 attonewton). See the formula, worked examples, and conversion table.
Ounce-forces to Attonewtons converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Attonewton is 1e-18 newton units.
Result = input x 0.278013851 / 1e-18.
Force units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Ounce-forces to Attonewtons
Ounce-force and Attonewton both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Ounce-force, and attonewton is 1e-18 newton units.
Formula
attonewtons = ounce-forces × 2.780139e+17
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 attonewton equals 1e-18 base units, so dividing one by the other gives the direct ounce-force-to-attonewton factor of 2.780139e+17.
Simple example
1 ozf × 2.780139e+17 = 2.780139e+17 aN
1 ounce-force = 2.780139e+17 attonewtons.
Real-world example
100 ozf × 2.780139e+17 = 2.780139e+19 aN
100 ounce-forces = 2.780139e+19 attonewtons.
Conversion table
| Ounce-force (ozf) | Attonewton (aN) |
|---|---|
| 1 ozf | 2.780139e+17 aN |
| 10 ozf | 2.780139e+18 aN |
| 50 ozf | 1.390069e+19 aN |
| 100 ozf | 2.780139e+19 aN |
| 500 ozf | 1.390069e+20 aN |
| 1,000 ozf | 2.780139e+20 aN |
Reverse conversion: Attonewton to Ounce-force
2.780139e+17 aN × 3.596943e-18 = 1.000000176 ozf
2.780139e+17 attonewtons = 1.000000176 ounce-forces.
ounce-forces = attonewtons × 3.596943e-18
For a page dedicated to this direction, see Attonewton to Ounce-force.
Understanding the Ounce-force (ozf)
Ounce-force.
Understanding the Attonewton (aN)
Attonewton is 1e-18 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many attonewtons are in 1 ounce-force?
1 ounce-force equals 2.780139e+17 attonewtons, using the exact defined conversion factor rather than an estimate.
How do I convert ounce-force to attonewton?
Multiply the ounce-force value by 2.780139e+17. The converter above does this instantly to whatever precision you set.
How do I convert attonewton back to ounce-force?
Use the reverse factor: 1 attonewton equals 3.596943e-18 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 engineering.
What is a attonewton?
Attonewton (aN) is a unit of engineering.
Is the ounce-force to attonewton conversion exact?
Yes. Both ounce-force and attonewton are defined by fixed standards rather than physical artifacts, so the factor of 2.780139e+17 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.