Torr (Torr)
The torr is used for vacuum systems, lab equipment, and pressures close to a millimeter of mercury.
History: the torr is named after Evangelista Torricelli and is connected to the mercury barometer.
Quickly convert torr to atmospheres without lookup tables or manual math.
This page is focused on converting torr to atmospheres. Type a number into the first field and the result appears immediately in the second field.
Example: 1 Torr = 0.0013157895 atm. Conversion formula: result = value × 133.32236842105 / 101325.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The torr is used for vacuum systems, lab equipment, and pressures close to a millimeter of mercury.
History: the torr is named after Evangelista Torricelli and is connected to the mercury barometer.
The atmosphere reflects approximate air pressure at sea level and is used as a practical pressure measure.
History: the standard atmosphere began as an approximation of mean air pressure at sea level.
Enter a value in the Torr field. The converter applies the formula "result = value × 133.32236842105 / 101325" and immediately shows the result in atmospheres.
1 Torr = 0.0013157895 atm.
Yes. Use the swap button or choose the reverse pair from the full conversion list.