Convert Square millimetres per minute to Square inches per hour

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

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

Conversion Formula

in²/h = mm²/min × 0.093000186

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 hour

The square inch per hour (in²/h) equals ≈1.792 × 10⁻⁷ m²/s, used in US heat-transfer handbooks and HVAC insulation specifications. Pre-SI tables for building insulation board and refractory brick often list thermal diffusivity in in²/h. Firebrick: ≈3.5 in²/h; rigid foam: ≈0.8-1.2 in²/h. 1 in²/h = 0.00064516/3600 m²/s.

Quick Reference Table

Square millimetres per minute (mm²/min)Square inches per hour (in²/h)
1 mm²/min0.0930002 in²/h
2 mm²/min0.186 in²/h
5 mm²/min0.465001 in²/h
10 mm²/min0.930002 in²/h
25 mm²/min2.325 in²/h
50 mm²/min4.65001 in²/h
100 mm²/min9.30002 in²/h

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