Millibar (mbar) to Torr (Torr) Conversion
Millibar
The millibar (mbar) is a unit of pressure equal to one thousandth of a bar (100 Pa). It is the standard unit for atmospheric pressure in meteorology: standard atmospheric pressure is 1,013.25 mbar, and weather maps plot isobars (lines of equal pressure) in millibars or hectopascals (1 hPa = 1 mbar). The eye of a powerful hurricane can have a central pressure below 900 mbar, while high-pressure systems typically exceed 1,020 mbar.
Torr
The torr is a unit of pressure named after Evangelista Torricelli, the Italian physicist who invented the mercury barometer in 1643. One torr is defined as exactly 1/760 of a standard atmosphere (approximately 133.322 Pa). Numerically nearly identical to the millimetre of mercury (mmHg), it differs by less than 0.000015%. The torr is used in vacuum science and engineering: rough vacuum is 1–100 torr, fine vacuum 10⁻³–1 torr, and ultra-high vacuum below 10⁻⁹ torr.
| Millibar (mbar) | Torr (Torr) |
|---|---|
| 0.1 mbar | 0.075 Torr |
| 1 mbar | 0.7501 Torr |
| 2 mbar | 1.5001 Torr |
| 3 mbar | 2.2502 Torr |
| 5 mbar | 3.7503 Torr |
| 10 mbar | 7.5006 Torr |
| 20 mbar | 15.0012 Torr |
| 30 mbar | 22.5019 Torr |
| 50 mbar | 37.5031 Torr |
| 100 mbar | 75.0062 Torr |
| 1000 mbar | 750.0617 Torr |
Frequently Asked Questions (FAQ)
How many torr are in 1 millibar?
1 millibar (mbar) is exactly 0.750062 torr (Torr).
How do I convert millibar to torr?
Multiply the value in millibar by 0.750062 to get the result in torr. Or use the converter above — type any number and see the result instantly.