Convert Gigapascals to Feet of Water
Convert Gigapascals (GPa) to Feet of Water (ftH₂O) instantly and accurately.
Conversion Formula
ftH₂O = GPa × 334552.5633
About Gigapascals
A gigapascal (GPa) = 10⁹ Pa = 10 kbar - the extreme-pressure unit for materials science and planetary physics. Bulk moduli: fused silica 72 GPa; iron 170 GPa; diamond 442 GPa (highest known). Earth's inner core: 330-360 GPa. Jupiter's core: ~40,000-70,000 GPa. NIF laser-shocked experiments create 100-100,000 GPa to reproduce planetary interior conditions. Metallic hydrogen is predicted to form above ~500 GPa and has been tentatively observed at 400-500 GPa in diamond anvil cells. 1 GPa = 10⁹ Pa = 10 kbar.
About Feet of Water
One foot of water column (ftH₂O) ≈ 2,989 Pa - the US customary equivalent of cmH₂O used in civil and hydraulic engineering. Municipal water supply systems are designed for 40-80 psi head ≈ 92-184 ft; fire suppression sprinkler systems require minimum 7 psi ≈ 16 ft. Well pump specifications, sump pump head ratings, irrigation mainline pressure, and drainage calculations all use feet of head. 1 ft of water = 12 in WC = 0.4335 psi ≈ 2,989 Pa.
Quick Reference Table
| Gigapascals (GPa) | Feet of Water (ftH₂O) |
|---|---|
| 1 GPa | 334553 ftH₂O |
| 2 GPa | 669105 ftH₂O |
| 5 GPa | 1672760 ftH₂O |
| 10 GPa | 3345530 ftH₂O |
| 25 GPa | 8363810 ftH₂O |
| 50 GPa | 16727600 ftH₂O |
| 100 GPa | 33455300 ftH₂O |