Convert Square inches per minute to Square metres per second
Convert Square inches per minute (in²/min) to Square metres per second (m²/s) instantly and accurately.
Conversion Formula
m²/s = in²/min × 1.075266667e-5
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 metres per second
The square metre per second (m²/s) is the SI unit for thermal diffusivity (α = k / ρc_p). It defines how fast a temperature disturbance propagates through a material. Diamond: ≈5 × 10⁻⁴ m²/s; silver: ≈1.65 × 10⁻⁴ m²/s; aluminium: ≈8.4 × 10⁻⁵ m²/s; iron: ≈1.8 × 10⁻⁵ m²/s; concrete: ≈6 × 10⁻⁷ m²/s; water: ≈1.4 × 10⁻⁷ m²/s. 1 m²/s = 10⁶ mm²/s = 10⁴ cm²/s.
Quick Reference Table
| Square inches per minute (in²/min) | Square metres per second (m²/s) |
|---|---|
| 1 in²/min | 1.075 × 10-5 m²/s |
| 2 in²/min | 2.151 × 10-5 m²/s |
| 5 in²/min | 5.376 × 10-5 m²/s |
| 10 in²/min | 0.000107527 m²/s |
| 25 in²/min | 0.000268817 m²/s |
| 50 in²/min | 0.000537633 m²/s |
| 100 in²/min | 0.00107527 m²/s |