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Viscosity

mm²/stom²/s

Convert square millimetres per second (mm²/s) to square metres per second (m²/s).

Factor1 mm²/s = 1e-6 m²/s

Converter

mm²/s

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1m²/s

Rendered to 6 significant figures.

Formula

Formula
m²/s = mm²/s × 1e-6

Multiply any value in square millimetres per second by 1e-6 to obtain the value in square metres per second.

Worked example

Convert 1.00000e+6 mm²/s to m²/s.

  1. 01Start with 1.00000e+6 mm²/s.
  2. 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 m²/s.
Result1.00000e+6 mm²/s = 1 m²/s

Conversion table

mm²/sm²/s
11e-6
22e-6
55e-6
101e-5
202e-5
505e-5
1001e-4
2000.0002
5000.0005
10000.001

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mm²/s to m²/s?
1 mm²/s equals 1e-6 m²/s. To convert, multiply the value in square millimetres per second by 1e-6.
How do I convert 1 mm²/s to m²/s?
1 mm²/s = 1e-6 m²/s. For any value, multiply by 1e-6.
How do I convert m²/s back to mm²/s?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 m²/s = 1.00000e+6 mm²/s.
When would I need to convert square millimetre per second to square metre per second?
Kinematic viscosity conversions between mm²/s and m²/s arise in hydraulic fluid selection, lubricant grading (ISO VG), pipe flow Reynolds number calculations, and fuel-oil specification. Kinematic viscosity equals dynamic viscosity divided by fluid density and cannot be directly compared to dynamic viscosity without that context.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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