Convert Square metres per second to Square feet per hour
Convert Square metres per second (m²/s) to Square feet per hour (ft²/h) instantly and accurately.
Conversion Formula
ft²/h = m²/s × 38750.0775
About Square metres per second
The square metre per second (m²/s) is the SI unit for thermal diffusivity (α = k / ρc_p). It defines how fast a temperature disturbance propagates through a material. Diamond: ≈5 × 10⁻⁴ m²/s; silver: ≈1.65 × 10⁻⁴ m²/s; aluminium: ≈8.4 × 10⁻⁵ m²/s; iron: ≈1.8 × 10⁻⁵ m²/s; concrete: ≈6 × 10⁻⁷ m²/s; water: ≈1.4 × 10⁻⁷ m²/s. 1 m²/s = 10⁶ mm²/s = 10⁴ cm²/s.
About Square feet per hour
The square foot per hour (ft²/h) equals ≈2.581 × 10⁻⁵ m²/s and is the dominant unit in US engineering practice for thermal diffusivity of building materials and industrial insulation. ASHRAE handbooks, Perry's Chemical Engineers' Handbook, and NFPA fire-resistance tables all list diffusivity in ft²/h. Steel: ≈0.4-0.5 ft²/h; concrete: ≈0.023 ft²/h; mineral wool: ≈0.005 ft²/h. 1 ft²/h = 0.09290304/3600 m²/s.
Quick Reference Table
| Square metres per second (m²/s) | Square feet per hour (ft²/h) |
|---|---|
| 1 m²/s | 38750.1 ft²/h |
| 2 m²/s | 77500.2 ft²/h |
| 5 m²/s | 193750 ft²/h |
| 10 m²/s | 387501 ft²/h |
| 25 m²/s | 968752 ft²/h |
| 50 m²/s | 1937500 ft²/h |
| 100 m²/s | 3875010 ft²/h |