Convert Square millimetres per minute to Square inches per second
Convert Square millimetres per minute (mm²/min) to Square inches per second (in²/s) instantly and accurately.
Conversion Formula
in²/s = mm²/min × 2.583338500e-5
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.
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.
Quick Reference Table
| Square millimetres per minute (mm²/min) | Square inches per second (in²/s) |
|---|---|
| 1 mm²/min | 2.583 × 10-5 in²/s |
| 2 mm²/min | 5.167 × 10-5 in²/s |
| 5 mm²/min | 0.000129167 in²/s |
| 10 mm²/min | 0.000258334 in²/s |
| 25 mm²/min | 0.000645835 in²/s |
| 50 mm²/min | 0.00129167 in²/s |
| 100 mm²/min | 0.00258334 in²/s |