Convert Square inches per hour to Square feet per minute

Convert Square inches per hour (in²/h) to Square feet per minute (ft²/min) instantly and accurately.

Square inches per hour (in²/h)
Square feet per minute (ft²/min)

Conversion Formula

ft²/min = in²/h × 0.0001157407407

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.

About Square feet per minute

The square foot per minute (ft²/min) equals ≈1.548 × 10⁻³ m²/s, an uncommon transitional unit appearing in some older US industrial furnace design charts and heat-treatment process sheets where holding times are expressed in minutes. 1 ft²/min = 60 ft²/h = 0.09290304/60 m²/s ≈1.548 × 10⁻³ m²/s.

Quick Reference Table

Square inches per hour (in²/h)Square feet per minute (ft²/min)
1 in²/h0.000115741 ft²/min
2 in²/h0.000231481 ft²/min
5 in²/h0.000578704 ft²/min
10 in²/h0.00115741 ft²/min
25 in²/h0.00289352 ft²/min
50 in²/h0.00578704 ft²/min
100 in²/h0.0115741 ft²/min

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