How many Torr are in one atm?
One standard atmosphere contains exactly 760 Torr.
Convert Standard atmosphere (atm) to Torr (Torr) instantly.
Formula
value × 760
| Sample | Converted |
|---|---|
| 1 atm | 760 Torr |
| 5 atm | 3,800 Torr |
| 10 atm | 7,600 Torr |
| 100 atm | 76,000 Torr |
| 1,000 atm | 760,000 Torr |
Convert standard atmospheres to Torr by multiplying the atm value by 760. This is an exact relationship because one Torr is defined as 1/760 of a standard atmosphere.
atm and Torr are strongly linked through the definition of standard atmosphere.
This conversion is exact: one atm is 760 Torr.
A pressure of 2 atm is 1520 Torr.
Use Torr when the target context is vacuum work, chemistry, physics, or mercury-column pressure references.
Use atm when the pressure is meant to be read as a multiple of standard atmosphere.
Actual local air pressure may not be exactly one atm or 760 Torr.
Atmospheres and Torr often appear together in laboratory and chemistry contexts.
Converting atm to Torr uses a direct definition-based relationship.
This makes the conversion simple and reliable for gas-law examples and pressure references.
One Torr is defined as 1/760 of a standard atmosphere.
Therefore, one standard atmosphere is exactly 760 Torr.
This exact relationship is useful for checking other pressure conversions.
Torr remains common in vacuum systems and laboratory pressure work.
atm is often used in gas-law calculations and broader pressure comparisons.
Choose the unit that matches the equipment, formula, or teaching context.
Definition: A standard atmosphere is a pressure unit defined as exactly 101,325 pascals.
History/Origin: The atmosphere unit became useful as a reference for average sea-level air pressure in science and education.
Current use: atm is used in chemistry, gas laws, diving references, laboratory work, classroom problems, and pressure comparisons.
Definition: A torr is a pressure unit defined as 1/760 of a standard atmosphere.
History/Origin: Torr is named after Evangelista Torricelli and remains associated with mercury-column and vacuum pressure measurement.
Current use: Torr is used in vacuum systems, laboratories, physics, chemistry, pressure gauges, and low-pressure process documentation.
| Standard atmosphere [atm] | Torr [Torr] |
|---|---|
| 0.01 atm | 7.6 Torr |
| 0.1 atm | 76 Torr |
| 1 atm | 760 Torr |
| 2 atm | 1,520 Torr |
| 5 atm | 3,800 Torr |
| 10 atm | 7,600 Torr |
| 20 atm | 15,200 Torr |
| 50 atm | 38,000 Torr |
| 100 atm | 76,000 Torr |
1 atm = 760 Torr
1 Torr = 0.001316 atm
Formula: value × 760
Example: 15 atm = 11,400 Torr
Precision note: Use exactly 760 Torr per atm. Preserve decimals when converting fractional atmosphere values.
One standard atmosphere contains exactly 760 Torr.
0.25 atm equals 190 Torr.
Torr is defined as 1/760 of a standard atmosphere.