Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 mbar | 0.1 Pa | |
| 0.01 mbar | 1 Pa | |
| 0.1 mbar | 10 Pa | |
| 1 mbar | 100 Pa | |
| 5 mbar | 500 Pa | |
| 10 mbar | 1000 Pa | |
| 50 mbar | 5000 Pa | |
| 100 mbar | 10000 Pa | |
| 1000 mbar | 100000 Pa |
Formula: Pascal = Millibar × 100
Multiply any millibar value by 100 to get pascal.
Reverse: Millibar = Pascal × 0.01
Common millibar values — factor: 1 mbar = 100 Pa
| Millibar (mbar) | Pascal (Pa) | Context |
|---|---|---|
| 1 mbar | 100 Pa | 0.1 kPa / light wind |
| 10 mbar | 1,000 Pa | 1 kPa |
| 100 mbar | 1e+04 Pa | 10 kPa |
| 500 mbar | 5e+04 Pa | 0.5 bar |
| 1,013 mbar | 101,300 Pa | 1 atm / sea level |
| 2,000 mbar | 200,000 Pa | 2 bar |
| 5,000 mbar | 500,000 Pa | 5 bar |
| 1e+04 mbar | 1,000,000 Pa | 10 bar |
| 100,000 mbar | 10,000,000 Pa | 100 bar |
| 1,000,000 mbar | 100,000,000 Pa | 1,000 bar |
| 68.95 mbar | 6,895 Pa | 1 psi |
| 1.333 mbar | 133.3 Pa | 1 mmHg |
| 33.86 mbar | 3,386 Pa | 1 inHg |
| 980.7 mbar | 9.807e+04 Pa | 1 kgf/cm² |
| 10,000,000 mbar | 1.000e+09 Pa | 10,000 bar |
1 mbar = 100 Pa. Memorize for instant estimates.
Use 100 as a quick mental multiplier.
Multiply result by 0.01 to recover the original mbar value.
Measures sound pressure levels in pascals — 20 μPa is the threshold of hearing.
Measures wind load on structures and façade pressure in pascals.
Specifies air pressure differentials across filters and dampers in Pa.
Calibrates pressure instruments traceable to SI pascal standards.
Solves Navier-Stokes equations with pressure in pascals.
Controls process chamber pressure in mPa range for deposition processes.
The millibar (mbar) equals 0.001 bar or 100 pascals, and is numerically identical to the hectopascal (hPa). It became the standard unit for surface pressure in international meteorology in the 20th century.
Weather maps and forecasts worldwide use millibars or hectopascals for surface pressure. Standard sea-level pressure is 1013.25 mbar. Hurricanes and typhoons are characterized by very low central pressures — Hurricane Patricia (2015) reached 872 mbar.
Interesting fact: A 1 mbar pressure difference over 111 km (1° latitude) drives a wind of approximately 1 m/s in mid-latitudes, which is why steep pressure gradients produce strong winds.
The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square meter. It was named after Blaise Pascal, the 17th-century French mathematician and physicist who studied fluid pressure. The unit was officially adopted by the International System of Units in 1971.
Pascals are used in meteorology (atmospheric pressure ~101,325 Pa), materials science (Young's modulus in GPa), and fluid mechanics. The pascal is very small — standard atmospheric pressure equals 101,325 Pa.
Interesting fact: Blaise Pascal demonstrated in 1648 that atmospheric pressure decreases with altitude by carrying a barometer up the Puy de Dôme mountain, confirming Torricelli's theory of atmospheric pressure.
Converting millibar to pascal is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 mbar = 500 Pa and 10 mbar = 1000 Pa. For the reverse: 1 Pa = 0.01 mbar. The exact factor is 1 mbar = 100 Pa.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.