convertimate Diffusion

Square meters per second to square millimeters per second

Type a value in m²/s to get it in mm²/s instantly.

10mm²/s

That's 6,667× as fast as salt in water, while a gas in air is 2× faster. In an hour a molecule would wander about 268.3 mm.

What it means

How fast does it spread?

Diffusion distances go with the square root of time: four times as long gets you only twice as far.

The math

How to convert m²/s to mm²/s

To convert square meters per second to square millimeters per second, multiply by 1,000,000.

Example: 1×10⁻⁵ m²/s × 1,000,000 = 10 mm²/s.

In the other direction, 1 mm²/s = 1×10⁻⁶ m²/s.

Every unit

Your coefficient in every unit

Tables

m²/s to mm²/s conversion table

m²/s to mm²/s conversion table
m²/smm²/s
1×10⁻¹² m²/s1×10⁻⁶ mm²/s
1×10⁻¹⁰ m²/s1×10⁻⁴ mm²/s
1×10⁻⁸ m²/s0.01 mm²/s
1×10⁻⁶ m²/s1 mm²/s
1×10⁻⁵ m²/s10 mm²/s
0.0001 m²/s100 mm²/s
0.01 m²/s10,000 mm²/s
0.1 m²/s100,000 mm²/s
0.2 m²/s200,000 mm²/s
1 m²/s1,000,000 mm²/s
mm²/s to m²/s conversion table
mm²/s to m²/s conversion table
mm²/sm²/s
1×10⁻¹² mm²/s1×10⁻¹⁸ m²/s
1×10⁻¹⁰ mm²/s1×10⁻¹⁶ m²/s
1×10⁻⁸ mm²/s1×10⁻¹⁴ m²/s
1×10⁻⁶ mm²/s1×10⁻¹² m²/s
1×10⁻⁵ mm²/s1×10⁻¹¹ m²/s
0.0001 mm²/s1×10⁻¹⁰ m²/s
0.01 mm²/s1×10⁻⁸ m²/s
0.1 mm²/s1×10⁻⁷ m²/s
0.2 mm²/s2×10⁻⁷ m²/s
1 mm²/s1×10⁻⁶ m²/s

Quick answers

Quick answers

How many mm²/s is 1 m²/s?
1 m²/s is 1,000,000 mm²/s.
How many mm²/s is 10 m²/s?
10 m²/s is 10,000,000 mm²/s.
How many mm²/s is 1×10⁻⁵ m²/s?
1×10⁻⁵ m²/s is 10 mm²/s.

The units

About these units

Square meters per second (m²/s)

The SI form, ten thousand times larger.

Square millimeters per second (mm²/s)

Convenient for gases and thermal diffusion.

Learn more about diffusion units

Keep going

Related conversions