Convert Millipascals to Millibars
Convert Millipascals (mPa) to Millibars (mbar) instantly and accurately.
Conversion Formula
mbar = mPa × 1.000000000e-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 Millibars
A millibar (mbar) = 100 Pa = 1 hPa - the historically dominant meteorological pressure unit. Standard sea-level pressure is 1013.25 mbar. Hurricane intensity is characterised by central pressure: Category 5 storms typically below 920 mbar (US record: 892 mbar, 1935). Upper-air analysis levels - 850, 700, 500, 300, 200 mbar - appear throughout decades of archived meteorological data. Aircraft cabins are pressurised to ~750-800 mbar at cruise altitude. 'Weather bombs' see pressure fall 24+ mbar in 24 hours. 1 mbar = 100 Pa.
Quick Reference Table
| Millipascals (mPa) | Millibars (mbar) |
|---|---|
| 1 mPa | 1 × 10-5 mbar |
| 2 mPa | 2 × 10-5 mbar |
| 5 mPa | 5 × 10-5 mbar |
| 10 mPa | 0.0001 mbar |
| 25 mPa | 0.00025 mbar |
| 50 mPa | 0.0005 mbar |
| 100 mPa | 0.001 mbar |