In 1 pound of force there are 444,822.2 dynes. Meanwhile in 1 dynes there are 0.00000224809 pound of force. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Dynes to Pound of force calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert pound-force (lbf) to dynes (dyn), use the link between the English force unit and the CGS force unit.
Conversion formula (lbf to dyn):
Quick examples:
Use this when you need a clean pound-force to dynes conversion for physics, engineering, or CGS-based calculations.
A pound-force (lbf) is a unit of force used in the U.S. customary system. It means the force needed to accelerate a 1-pound mass at standard gravity. In everyday terms, it’s close to the weight force of a 1-pound object at sea level.
A dyne (dyn) is a unit of force in the CGS system (centimeter-gram-second). It’s defined as the force needed to accelerate 1 gram by 1 centimeter per second squared. Dynes are much smaller than pound-force.
The standard conversion is:
1 lbf = 444,822.16152605 dyn
You can round this based on your needs. Many cases use 1 lbf ≈ 4.4482216 × 10^5 dyn.
Multiply the value in pound-force by 444,822.16152605.
Formula:
dyn = lbf × 444,822.16152605
Example:
2 lbf = 2 × 444,822.16152605 = 889,644.3230521 dyn
Divide the value in dynes by 444,822.16152605.
Formula:
lbf = dyn ÷ 444,822.16152605
Example:
100,000 dyn = 100,000 ÷ 444,822.16152605 ≈ 0.224809 lbf
The dyne is a very small unit because it’s based on grams and centimeters. Pound-force is based on pounds and feet (through related definitions). Since the base units differ a lot in size, the force units differ too.
No. Pound-force (lbf) measures force. Pound-mass (lbm) measures mass. They can look similar in writing, so it’s common to see mix-ups. In U.S. engineering work, force is often written as lbf to keep it clear.
The defined value of 1 lbf uses standard gravity, so the conversion factor is fixed for unit conversion. Real-world weight force changes slightly with local gravity, but the unit conversion itself doesn’t change.
This conversion helps when you need CGS units, such as:
Because the number is large, scientific notation is often easier to read:
1 lbf = 4.4482216152605 × 10^5 dyn
To convert, multiply lbf by 4.4482216152605 × 10^5.
For rough work, you can use:
1 lbf ≈ 4.45 × 10^5 dyn
This is close enough for many estimates, but use the full value when you need higher accuracy.
Dynes show up less often in modern engineering, where SI units like newtons are common. Still, dynes appear in some older references, specialized fields, and CGS-based formulas.
These common force conversions often help as a cross-check:
The Calculate Box tool to convert pound of force to dynes uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a pound of force value in the box and have it instantly converted to dynes.