Femtonewton is 1e-15 newton units.
Femtonewtons to Dynes Converter — fN to dyn
Convert Femtonewton (fN) to Dyne (dyn) using the exact conversion factor (1 femtonewton = 1e-10 dyne). See the formula, worked examples, and conversion table.
Femtonewtons to Dynes 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.
A dyne is a CGS force unit.
Result = input x 1e-15 / 1e-5.
Force units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Femtonewtons to Dynes
Femtonewton and Dyne 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: Femtonewton is 1e-15 newton units, and a dyne is a CGS force unit.
Formula
dynes = femtonewtons × 1e-10
This factor comes from each unit's defined relationship to the category's base unit: 1 femtonewton equals 1e-15 base units, and 1 dyne equals 0.00001 base units, so dividing one by the other gives the direct femtonewton-to-dyne factor of 1e-10.
Simple example
1 fN × 1e-10 = 1e-10 dyn
1 femtonewton = 1e-10 dynes.
Real-world example
100 fN × 1e-10 = 1e-8 dyn
100 femtonewtons = 1e-8 dynes.
Conversion table
| Femtonewton (fN) | Dyne (dyn) |
|---|---|
| 1 fN | 1e-10 dyn |
| 10 fN | 1e-9 dyn |
| 50 fN | 5e-9 dyn |
| 100 fN | 1e-8 dyn |
| 500 fN | 5e-8 dyn |
| 1,000 fN | 1e-7 dyn |
Reverse conversion: Dyne to Femtonewton
1e-10 dyn × 10000000000 = 1 fN
1e-10 dynes = 1 femtonewton.
femtonewtons = dynes × 10000000000
For a page dedicated to this direction, see Dyne to Femtonewton.
Understanding the Femtonewton (fN)
Femtonewton is 1e-15 newton units.
Understanding the Dyne (dyn)
A dyne is a CGS force unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many dynes are in 1 femtonewton?
1 femtonewton equals 1e-10 dynes, using the exact defined conversion factor rather than an estimate.
How do I convert femtonewton to dyne?
Multiply the femtonewton value by 1e-10. The converter above does this instantly to whatever precision you set.
How do I convert dyne back to femtonewton?
Use the reverse factor: 1 dyne equals 10,000,000,000 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 engineering.
What is a dyne?
Dyne (dyn) is a unit of engineering.
Is the femtonewton to dyne conversion exact?
Yes. Both femtonewton and dyne are defined by fixed standards rather than physical artifacts, so the factor of 1e-10 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.