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Convert Dynes to Pounds-force

1 dyne is 0.000002 lbf. One dyne is exactly 0.000002248089431 pounds-force.

One dyne is 2.2481 × 10^-6 pounds-force. To convert dynes to pounds-force, multiply by 2.2481 × 10^-6; to go the other way, divide by 2.2481 × 10^-6 or multiply by 444822.16. The factor is exact rather than rounded: it follows from NIST Special Publication 811. Exactly a hundred-thousandth of a newton, from the older centimetre-gram-second system.

Factor checked against the defining standard · How we check

Pounds-force
0.000002 lbf
Dynes × 2.2481 × 10^-6
value * 0.0000022480894310 lbf

1 dyne in every force unit

UnitValueExact factor
newtons0.00001 N× 0.00001
kilonewtons0.00000001 kN× 0.00000001
pounds-force0.000002248089431 lbf× 0.000002248089431
kilograms-force0.000001019716213 kgf× 0.00000101971621298
ounces-force0.0000359694309 ozf× 0.000035969430896
dynes (as entered)1 dyn

Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert dynes to pounds-force?

  1. 1.Take the measurement in dynes.
  2. 2.Multiply by 2.2481 × 10^-6 — that is how many pounds-force fit in one dyne.
  3. 3.To go back the other way, divide by 2.2481 × 10^-6, or multiply by 444822.16.

Worked example: 25 dynes to pounds-force

Formula
dyn × 2.2481 × 10^-6 = lbf
Arithmetic
25 × 2.2481 × 10^-6 = 0.000056 lbf
Answer
25 dyn = 0.000056 lbf

The factor is rounded for display; the figure above is computed from the full value.

Dynes to pounds-force conversion table

DynesPounds-force
1 dyn0.000002 lbf
2 dyn0.000004 lbf
3 dyn0.000007 lbf
4 dyn0.000009 lbf
5 dyn0.000011 lbf
6 dyn0.000013 lbf
7 dyn0.000016 lbf
8 dyn0.000018 lbf
9 dyn0.00002 lbf
10 dyn0.000022 lbf
12 dyn0.000027 lbf
15 dyn0.000034 lbf
20 dyn0.000045 lbf
25 dyn0.000056 lbf
50 dyn0.000112 lbf
100 dyn0.000225 lbf
200 dyn0.00045 lbf
300 dyn0.000674 lbf
500 dyn0.001124 lbf
1000 dyn0.002248 lbf
2000 dyn0.004496 lbf
5000 dyn0.01124 lbf
10000 dyn0.022481 lbf

What is a dyne?

Exactly a hundred-thousandth of a newton, from the older centimetre-gram-second system. Surface tension and older physics texts still use it.

What is a pound-force?

The weight of one pound under standard gravity, exactly 4.4482216152605 newtons. A pound of mass and a pound-force are different quantities that share a name, which is why this unit exists at all.

How many pounds-force are in a dyne?

One dyne is 2.2481 × 10^-6 pounds-force. Going the other way, one pound-force is 444822.16 dynes. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every force unit here

UnitSymbolOne of these is
NewtonsNthe base unit
KilonewtonskN1000 newton
Pounds-forcelbf4.4482216 newton
Kilograms-forcekgf9.80665 newton
Ounces-forceozf0.27801385 newton
Dynesdyn1.0000 × 10^-5 newton

Source: NIST Special Publication 811 — pound-force is exactly 4.4482216152605 N

Questions people actually ask

How many pounds-force are in a dyne?
2.2481 × 10^-6. The weight of one pound under standard gravity, exactly 4.4482216152605 newtons. A pound of mass and a pound-force are different quantities that share a name, which is why this unit exists at all.
How do I convert pounds-force back to dynes?
Divide by 2.2481 × 10^-6, or multiply by 444822.16 — they are the same operation.

Other force conversions

Pounds-force to dynes — the same conversion the other way.