Convert Feet of Water to Megapascals
Convert Feet of Water (ftH₂O) to Megapascals (MPa) instantly and accurately.
Conversion Formula
MPa = ftH₂O × 0.00298906692
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.
About Megapascals
A megapascal (MPa) = 10⁶ Pa = 10 bar - standard unit for mechanical stress, material strength, and high-pressure engineering. Structural material yield strengths: mild steel 250-550 MPa; high-strength steel to 2,000 MPa; carbon fibre composites 1,500-7,000 MPa tensile. Hydraulic press pressures 50-200 MPa. Mariana Trench floor ~110 MPa. Concrete compressive strength: 25-40 MPa (normal); up to 150 MPa (high-performance). Water-jet cutting: 200-600 MPa. Elastic moduli in FEM analysis are in MPa or GPa. 1 MPa = 10⁶ Pa = 145.0 psi.
Quick Reference Table
| Feet of Water (ftH₂O) | Megapascals (MPa) |
|---|---|
| 1 ftH₂O | 0.00298907 MPa |
| 2 ftH₂O | 0.00597813 MPa |
| 5 ftH₂O | 0.0149453 MPa |
| 10 ftH₂O | 0.0298907 MPa |
| 25 ftH₂O | 0.0747267 MPa |
| 50 ftH₂O | 0.149453 MPa |
| 100 ftH₂O | 0.298907 MPa |