Convert Square inches per second to Square millimetres per minute
Convert Square inches per second (in²/s) to Square millimetres per minute (mm²/min) instantly and accurately.
Conversion Formula
mm²/min = in²/s × 38709.6
About Square inches per second
The square inch per second (in²/s) equals 6.4516 × 10⁻⁴ m²/s, used in high-speed thermal analyses such as ballistic impact heating, explosive detonation studies, and rapid induction heating of steel billets. Values for high-conductivity copper alloys reach ≈1-2 in²/s; for mild steel ≈0.3 in²/s. 1 in²/s = 0.00064516 m²/s = 3600 in²/h.
About Square millimetres per minute
The square millimetre per minute (mm²/min) equals 1/60 000 000 m²/s. It appears in material testing standards where thermal diffusivity of polymers and composites is measured over minute-scale heating pulses. ASTM and ISO laser-flash methods sometimes report in mm²/min as an intermediate step. 1 mm²/min = 1e-6/60 m²/s ≈ 1.667 × 10⁻¸ m²/s.
Quick Reference Table
| Square inches per second (in²/s) | Square millimetres per minute (mm²/min) |
|---|---|
| 1 in²/s | 38709.6 mm²/min |
| 2 in²/s | 77419.2 mm²/min |
| 5 in²/s | 193548 mm²/min |
| 10 in²/s | 387096 mm²/min |
| 25 in²/s | 967740 mm²/min |
| 50 in²/s | 1935480 mm²/min |
| 100 in²/s | 3870960 mm²/min |