Convert Square inches per minute to Square millimetres per second
Convert Square inches per minute (in²/min) to Square millimetres per second (mm²/s) instantly and accurately.
Conversion Formula
mm²/s = in²/min × 10.75266667
About Square inches per minute
The square inch per minute (in²/min) equals ≈1.075 × 10⁻⁵ m²/s, found in US military and aerospace specifications for thermal protection materials and ablative heat shields. Some NASA technical reports on reentry vehicle TPS (Thermal Protection System) materials quote diffusivity in in²/min. 1 in²/min = 0.00064516/60 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 inches per minute (in²/min) | Square millimetres per second (mm²/s) |
|---|---|
| 1 in²/min | 10.7527 mm²/s |
| 2 in²/min | 21.5053 mm²/s |
| 5 in²/min | 53.7633 mm²/s |
| 10 in²/min | 107.527 mm²/s |
| 25 in²/min | 268.817 mm²/s |
| 50 in²/min | 537.633 mm²/s |
| 100 in²/min | 1075.27 mm²/s |