Torr (Torr) to Bar (bar) Conversion
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.
Bar
The bar is a unit of pressure equal to exactly 100,000 pascals (100 kPa), accepted for use with the SI by the BIPM. It is close to one standard atmosphere (1 atm = 1.01325 bar) making it convenient for many practical applications. The bar is widely used in meteorology (weather maps), industrial gas and fluid systems, and tyre inflation in continental Europe. A typical car tyre is inflated to 2.2–2.5 bar; scuba diving tanks are filled to 200–300 bar.
| Torr (Torr) | Bar (bar) |
|---|---|
| 0.1 Torr | 0.000133 bar |
| 1 Torr | 0.00133 bar |
| 2 Torr | 0.00267 bar |
| 3 Torr | 0.004 bar |
| 5 Torr | 0.00667 bar |
| 10 Torr | 0.0133 bar |
| 20 Torr | 0.0267 bar |
| 30 Torr | 0.04 bar |
| 50 Torr | 0.0667 bar |
| 100 Torr | 0.1333 bar |
| 1000 Torr | 1.3332 bar |
Frequently Asked Questions (FAQ)
How many bar are in 1 torr?
1 torr (Torr) is exactly 0.001333 bar (bar).
How do I convert torr to bar?
Multiply the value in torr by 0.001333 to get the result in bar. Or use the converter above — type any number and see the result instantly.