Convert Centimeters of Water to Megapascals
Convert Centimeters of Water (cmH₂O) to Megapascals (MPa) instantly and accurately.
Conversion Formula
MPa = cmH₂O × 9.806650000e-5
About Centimeters of Water
One centimetre of water column (cmH₂O) ≈ 98.07 Pa - the clinical pressure unit for respiratory and intravascular measurements. Mechanical ventilator settings are in cmH₂O: peak inspiratory pressure (PIP) 15-30 cmH₂O; PEEP 5-15 cmH₂O; plateau pressure should stay below 30 cmH₂O to avoid lung injury. Lumbar puncture CSF opening pressure is normally 8-20 cmH₂O. CPAP/BiPAP therapy for sleep apnea: 4-20 cmH₂O. Central venous pressure is also reported in cmH₂O. 1 cmH₂O = 98.0665 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
| Centimeters of Water (cmH₂O) | Megapascals (MPa) |
|---|---|
| 1 cmH₂O | 9.807 × 10-5 MPa |
| 2 cmH₂O | 0.000196133 MPa |
| 5 cmH₂O | 0.000490332 MPa |
| 10 cmH₂O | 0.000980665 MPa |
| 25 cmH₂O | 0.00245166 MPa |
| 50 cmH₂O | 0.00490333 MPa |
| 100 cmH₂O | 0.00980665 MPa |