Convert Square millimetres per minute to Square inches per minute

Convert Square millimetres per minute (mm²/min) to Square inches per minute (in²/min) instantly and accurately.

Square millimetres per minute (mm²/min)
Square inches per minute (in²/min)

Conversion Formula

in²/min = mm²/min × 0.0015500031

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 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.

Quick Reference Table

Square millimetres per minute (mm²/min)Square inches per minute (in²/min)
1 mm²/min0.00155 in²/min
2 mm²/min0.00310001 in²/min
5 mm²/min0.00775002 in²/min
10 mm²/min0.0155 in²/min
25 mm²/min0.0387501 in²/min
50 mm²/min0.0775002 in²/min
100 mm²/min0.155 in²/min

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