Formula
atm to Torr conversion formula
Use this relationship for a direct conversion:
Worked example
2 atm = 1,520 Torr.
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
Pressure conversion
1 standard atmosphere (atm) equals 760 torr (Torr). Enter any value below to convert from atm to Torr.
Enter a value and choose units. Results update instantly.
1 atm = 760 Torr
| Unit | Value |
|---|---|
| Pascal Pa | 101,325 |
| Kilopascal kPa | 101.325 |
| Megapascal MPa | 0.101325 |
| Bar bar | 1.01325 |
| Millibar mbar | 1,013.25 |
| Standard atmosphere atm | 1 |
| Pound per square inch psi | 14.6959487755 |
| Torr Torr | 760 |
| Millimeter of mercury mmHg | 759.9998917256 |
| Inch of mercury inHg | 29.9212524019 |
Formula
Use this relationship for a direct conversion:
2 atm = 1,520 Torr.
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
Quick reference
| Standard atmosphere (atm) | Torr (Torr) |
|---|---|
| 0.01 | 7.6 |
| 0.1 | 76 |
| 1 | 760 |
| 2 | 1,520 |
| 5 | 3,800 |
| 10 | 7,600 |
| 25 | 19,000 |
| 50 | 38,000 |
| 100 | 76,000 |
| 1,000 | 760,000 |
From unit
Exactly 101,325 pascals.
Symbol: atm
To unit
Exactly one 760th of a standard atmosphere.
Symbol: Torr
Keep converting
Source
Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.
View the complete pressure converterQuestions
Use the formula Torr = atm x 760. 1 standard atmosphere (atm) equals 760 torr (Torr).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.