Femtonewton is 1e-15 newton units.
Femtonewtons to Micronewtons Converter — fN to uN
Convert Femtonewton (fN) to Micronewton (uN) using the exact conversion factor (1 femtonewton = 1e-9 micronewton). See the formula, worked examples, and conversion table.
Femtonewtons to Micronewtons 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.
Micronewton is 0.000001 newton units.
Result = input x 1e-15 / 1e-6.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Femtonewtons to Micronewtons
Femtonewton and Micronewton 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: Femtonewton is 1e-15 newton units, and micronewton is 0.000001 newton units.
Formula
micronewtons = femtonewtons × 1e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 femtonewton equals 1e-15 base units, and 1 micronewton equals 0.000001 base units, so dividing one by the other gives the direct femtonewton-to-micronewton factor of 1e-9.
Simple example
1 fN × 1e-9 = 1e-9 uN
1 femtonewton = 1e-9 micronewtons.
Real-world example
10 fN × 1e-9 = 1e-8 uN
10 femtonewtons = 1e-8 micronewtons.
Conversion table
| Femtonewton (fN) | Micronewton (uN) |
|---|---|
| 1 fN | 1e-9 uN |
| 5 fN | 5e-9 uN |
| 10 fN | 1e-8 uN |
| 50 fN | 5e-8 uN |
| 100 fN | 1e-7 uN |
| 1,000 fN | 0.000001 uN |
Reverse conversion: Micronewton to Femtonewton
1e-9 uN × 1000000000 = 1 fN
1e-9 micronewtons = 1 femtonewton.
femtonewtons = micronewtons × 1000000000
For a page dedicated to this direction, see Micronewton to Femtonewton.
Understanding the Femtonewton (fN)
Femtonewton is 1e-15 newton units.
Understanding the Micronewton (uN)
Micronewton is 0.000001 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micronewtons are in 1 femtonewton?
1 femtonewton equals 1e-9 micronewtons, using the exact defined conversion factor rather than an estimate.
How do I convert femtonewton to micronewton?
Multiply the femtonewton value by 1e-9. The converter above does this instantly to whatever precision you set.
How do I convert micronewton back to femtonewton?
Use the reverse factor: 1 micronewton equals 1,000,000,000 femtonewtons. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtonewton?
Femtonewton (fN) is a unit of force.
What is a micronewton?
Micronewton (uN) is a unit of force.
Is the femtonewton to micronewton conversion exact?
Yes. Both femtonewton and micronewton are defined by fixed standards rather than physical artifacts, so the factor of 1e-9 used above is exact to as many digits as you choose to display.