Attonewton is 1e-18 newton units.
Attonewtons to Millinewtons Converter — aN to mN
Convert Attonewton (aN) to Millinewton (mN) using the exact conversion factor (1 attonewton = 1e-15 millinewton). See the formula, worked examples, and conversion table.
Attonewtons to Millinewtons 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.
Millinewton is 0.001 newton units.
Result = input x 1e-18 / 0.001.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Attonewtons to Millinewtons
Attonewton and Millinewton 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: Attonewton is 1e-18 newton units, and millinewton is 0.001 newton units.
Formula
millinewtons = attonewtons × 1e-15
This factor comes from each unit's defined relationship to the category's base unit: 1 attonewton equals 1e-18 base units, and 1 millinewton equals 0.001 base units, so dividing one by the other gives the direct attonewton-to-millinewton factor of 1e-15.
Simple example
1 aN × 1e-15 = 1e-15 mN
1 attonewton = 1e-15 millinewtons.
Real-world example
10 aN × 1e-15 = 1e-14 mN
10 attonewtons = 1e-14 millinewtons.
Conversion table
| Attonewton (aN) | Millinewton (mN) |
|---|---|
| 1 aN | 1e-15 mN |
| 5 aN | 5e-15 mN |
| 10 aN | 1e-14 mN |
| 50 aN | 5e-14 mN |
| 100 aN | 1e-13 mN |
| 1,000 aN | 1e-12 mN |
Reverse conversion: Millinewton to Attonewton
1e-15 mN × 1e+15 = 1 aN
1e-15 millinewtons = 1 attonewton.
attonewtons = millinewtons × 1e+15
For a page dedicated to this direction, see Millinewton to Attonewton.
Understanding the Attonewton (aN)
Attonewton is 1e-18 newton units.
Understanding the Millinewton (mN)
Millinewton is 0.001 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many millinewtons are in 1 attonewton?
1 attonewton equals 1e-15 millinewtons, using the exact defined conversion factor rather than an estimate.
How do I convert attonewton to millinewton?
Multiply the attonewton value by 1e-15. The converter above does this instantly to whatever precision you set.
How do I convert millinewton back to attonewton?
Use the reverse factor: 1 millinewton equals 1e+15 attonewtons. You can also use the swap control in the converter above to flip the direction instantly.
What is a attonewton?
Attonewton (aN) is a unit of force.
What is a millinewton?
Millinewton (mN) is a unit of force.
Is the attonewton to millinewton conversion exact?
Yes. Both attonewton and millinewton are defined by fixed standards rather than physical artifacts, so the factor of 1e-15 used above is exact to as many digits as you choose to display.