Convert Square feet per hour to Square centimetres per second
Convert Square feet per hour (ft²/h) to Square centimetres per second (cm²/s) instantly and accurately.
Conversion Formula
cm²/s = ft²/h × 0.258064
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.
About Square centimetres per second
The square centimetre per second (cm²/s) equals 1 × 10⁻⁴ m²/s and is the CGS unit for thermal diffusivity, sometimes called the stokes by analogy with kinematic viscosity. Pre-SI thermophysics literature and many older reference databases list values in cm²/s: iron ≈0.18 cm²/s; aluminium ≈0.84 cm²/s; water ≈1.4 × 10⁻³ cm²/s. 1 cm²/s = 1 × 10⁻⁴ m²/s.
Quick Reference Table
| Square feet per hour (ft²/h) | Square centimetres per second (cm²/s) |
|---|---|
| 1 ft²/h | 0.258064 cm²/s |
| 2 ft²/h | 0.516128 cm²/s |
| 5 ft²/h | 1.29032 cm²/s |
| 10 ft²/h | 2.58064 cm²/s |
| 25 ft²/h | 6.4516 cm²/s |
| 50 ft²/h | 12.9032 cm²/s |
| 100 ft²/h | 25.8064 cm²/s |