Convert Square centimetres per second to Square millimetres per second

Convert Square centimetres per second (cm²/s) to Square millimetres per second (mm²/s) instantly and accurately.

Square centimetres per second (cm²/s)
Square millimetres per second (mm²/s)

Conversion Formula

mm²/s = cm²/s × 100

About Square centimetres per second

The square centimetre per second (cm²/s) equals 1 × 10⁻⁴ m²/s and is the CGS unit for thermal diffusivity, sometimes called the stokes by analogy with kinematic viscosity. Pre-SI thermophysics literature and many older reference databases list values in cm²/s: iron ≈0.18 cm²/s; aluminium ≈0.84 cm²/s; water ≈1.4 × 10⁻³ cm²/s. 1 cm²/s = 1 × 10⁻⁴ m²/s.

About Square millimetres per second

The square millimetre per second (mm²/s) equals 1 × 10⁻⁶ m²/s and is the standard unit in materials engineering and the laser-flash diffusivity method (ASTM E1461, ISO 22007-4). Metals span roughly 2-180 mm²/s; polymers 0.07-0.2 mm²/s; ceramics 0.3-10 mm²/s. Numerically identical to the kinematic viscosity unit (cSt) in SI context. 1 mm²/s = 1 × 10⁻⁶ m²/s.

Quick Reference Table

Square centimetres per second (cm²/s)Square millimetres per second (mm²/s)
1 cm²/s100 mm²/s
2 cm²/s200 mm²/s
5 cm²/s500 mm²/s
10 cm²/s1000 mm²/s
25 cm²/s2500 mm²/s
50 cm²/s5000 mm²/s
100 cm²/s10000 mm²/s

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