Convert Millipascals to Centimeters of Water
Convert Millipascals (mPa) to Centimeters of Water (cmH₂O) instantly and accurately.
Conversion Formula
cmH₂O = mPa × 1.019716213e-5
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.
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.
Quick Reference Table
| Millipascals (mPa) | Centimeters of Water (cmH₂O) |
|---|---|
| 1 mPa | 1.02 × 10-5 cmH₂O |
| 2 mPa | 2.039 × 10-5 cmH₂O |
| 5 mPa | 5.099 × 10-5 cmH₂O |
| 10 mPa | 0.000101972 cmH₂O |
| 25 mPa | 0.000254929 cmH₂O |
| 50 mPa | 0.000509858 cmH₂O |
| 100 mPa | 0.00101972 cmH₂O |