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.
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/s | 100 mm²/s |
| 2 cm²/s | 200 mm²/s |
| 5 cm²/s | 500 mm²/s |
| 10 cm²/s | 1000 mm²/s |
| 25 cm²/s | 2500 mm²/s |
| 50 cm²/s | 5000 mm²/s |
| 100 cm²/s | 10000 mm²/s |