How many dynes are in one newton?

Exactly 100,000 dynes (1 × 10⁵ dyn). This is an exact conversion because both units are defined from base SI/CGS units: 1 N = 1 kg·m/s², 1 dyn = 1 g·cm/s², and 1 kg = 1000 g, 1 m = 100 cm, giving 1 N = 1000 × 100 dyn = 100,000 dyn.

A dyne (dyn) is the CGS (centimeter-gram-second) unit of force. It is defined as the force needed to accelerate a mass of 1 gram at 1 cm/s². The dyne is much smaller than a newton — it takes 100,000 dynes to equal just 1 newton.

When would I use dynes instead of newtons?

Dynes appear in older scientific literature, some fields of physics (especially surface tension, measured in dyn/cm), and CGS-based engineering references. Modern science generally uses newtons (SI), but CGS units still appear in fields like electromagnetism (Gaussian units) and materials science.

Is the conversion exact or approximate?

Exact. 1 newton = 100,000 dynes with no rounding or approximation. The conversion factor is 10⁵ precisely, derived from the definitions of the base units in both systems.

Can I convert dynes back to newtons?

Yes. To convert dynes to newtons, divide by 100,000 (or multiply by 0.00001). Use the swap button in the converter to reverse the direction.

Newtons to Dynes Converter

Name: Newtons to Dynes Converter
Availability: InStock
Author: Nham Vu

Enter a force in newtons and instantly get the equivalent value in dynes (1 N = 100,000 dyn).

Force Conversion

Newtons (N)

Dynes (dyn)

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Conversion Reference

Formula

dynes = newtons × 100,000

1 N = 10⁵ dyn (exact)

Common Values

Newtons (N)

Dynes (dyn)

0.0001

0.001

100

0.01

1,000

0.1

10,000

100,000

1,000,000

100

10,000,000

The dyne is part of the CGS (centimeter-gram-second) system. It equals the force needed to accelerate 1 gram at 1 cm/s². The newton (SI) equals 1 kg·m/s².

Summary