Bar (bar) to Torr (Torr) Conversion
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
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 (bar) | Torr (Torr) |
|---|---|
| 0.1 bar | 75.006168271009 Torr |
| 1 bar | 750.06168271009 Torr |
| 2 bar | 1500.1233654202 Torr |
| 3 bar | 2250.1850481303 Torr |
| 5 bar | 3750.3084135505 Torr |
| 10 bar | 7500.6168271009 Torr |
| 20 bar | 15001.233654202 Torr |
| 30 bar | 22501.850481303 Torr |
| 50 bar | 37503.084135505 Torr |
| 100 bar | 75006.168271009 Torr |
| 1000 bar | 750061.68271009 Torr |