Convert Centimeters of Water to Millipascals
Convert Centimeters of Water (cmH₂O) to Millipascals (mPa) instantly and accurately.
Conversion Formula
mPa = cmH₂O × 98066.5
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 Millipascals
A millipascal (mPa) is 10⁻³ Pa. It appears primarily in rheology as the millipascal-second (mPa·s = centipoise) for dynamic viscosity: water at 20°C is 1.002 mPa·s; olive oil ~80 mPa·s; honey 2,000-10,000 mPa·s. Food technology, polymer processing, pharmaceutical formulation, and inkjet printing all specify flow behaviour in mPa·s. Partial pressures of trace atmospheric gases and ultra-high-vacuum leak rates measured by residual gas analysers are also expressed in millipascals. 1 mPa = 10⁻³ Pa.
Quick Reference Table
| Centimeters of Water (cmH₂O) | Millipascals (mPa) |
|---|---|
| 1 cmH₂O | 98066.5 mPa |
| 2 cmH₂O | 196133 mPa |
| 5 cmH₂O | 490333 mPa |
| 10 cmH₂O | 980665 mPa |
| 25 cmH₂O | 2451660 mPa |
| 50 cmH₂O | 4903330 mPa |
| 100 cmH₂O | 9806650 mPa |