Convert Gal to Feet per second squared
Convert Gal (Gal) to Feet per second squared (ft/s²) instantly and accurately.
Conversion Formula
ft/s² = Gal × 0.03280839895
About Gal
The gal (Gal) equals 1 cm/s² = 0.01 m/s², named after Galileo Galilei in recognition of his free-fall experiments. Earth's surface gravity is approximately 980 Gal; the GRS80 normal gravity formula gives 978.03 Gal at the equator and 983.22 Gal at the poles. The BIPM SI Brochure recognises the Gal as a non-SI unit accepted in geophysics. 1 Gal = 0.01 m/s² = 1 cm/s² = 1000 mGal ≈ 1.02 × 10⁻³ g₀.
About Feet per second squared
The foot per second squared (ft/s²) equals exactly 0.3048 m/s², the coherent acceleration unit in the imperial engineering system where F [lbf] = m [slug] × a [ft/s²]. Standard gravity is g₀ = 32.174 ft/s², a constant used throughout US aerospace and structural engineering - from legacy NACA reports to modern software (SAP2000, ETABS with US units). A car braking at 0.8 g decelerates at about 25.7 ft/s². 1 ft/s² = 0.3048 m/s² ≈ 3.108 × 10⁻² g₀.
Quick Reference Table
| Gal (Gal) | Feet per second squared (ft/s²) |
|---|---|
| 1 Gal | 0.0328084 ft/s² |
| 2 Gal | 0.0656168 ft/s² |
| 5 Gal | 0.164042 ft/s² |
| 10 Gal | 0.328084 ft/s² |
| 25 Gal | 0.82021 ft/s² |
| 50 Gal | 1.64042 ft/s² |
| 100 Gal | 3.28084 ft/s² |