Convert Centimeters of Water to Millipascals

Convert Centimeters of Water (cmH₂O) to Millipascals (mPa) instantly and accurately.

Centimeters of Water (cmH₂O)
Millipascals (mPa)

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 cmH₂O98066.5 mPa
2 cmH₂O196133 mPa
5 cmH₂O490333 mPa
10 cmH₂O980665 mPa
25 cmH₂O2451660 mPa
50 cmH₂O4903330 mPa
100 cmH₂O9806650 mPa

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