Use this free, accurate torr to standard atmosphere calculator to convert between Torr (Torr) and Standard Atmosphere (atm). Includes live instant results, complete mathematical formulas, conversion tables, and step-by-step examples.
0.0013157895 Standard Atmosphere
1 Torr is equal to 0.001316 atm.
atm = Torr × 0.00131579
pressure Converters
To convert from Torr to Standard Atmosphere, multiply the value in Torr by 0.001316 (or use the formula: atm = Torr × 0.001316).
Take your initial measurement in Torr (Torr). For instance, let's convert 1 Torr.
Multiply by the standard conversion factor (0.001316).
The final converted measurement equals 0.001316 Standard Atmosphere (atm).
Compare standard reference values and common conversion benchmarks.
| Torr (Torr) | Standard Atmosphere (atm) | Action |
|---|---|---|
| 1 Torr | 0.00132 atm | |
| 2 Torr | 0.00263 atm | |
| 3 Torr | 0.00395 atm | |
| 5 Torr | 0.00658 atm | |
| 10 Torr | 0.01316 atm | |
| 15 Torr | 0.01974 atm | |
| 20 Torr | 0.02632 atm | |
| 25 Torr | 0.03289 atm | |
| 50 Torr | 0.06579 atm | |
| 75 Torr | 0.09868 atm | |
| 100 Torr | 0.13158 atm | |
| 250 Torr | 0.32895 atm | |
| 500 Torr | 0.65789 atm | |
| 1000 Torr | 1.31579 atm |
Official standards, measurement systems, and real-world everyday applications.
A torr is defined as exactly 1/760 of a standard atmosphere (approx 133.322 pascals).
Common Practical Uses
A standard atmosphere is a defined reference pressure equal to exactly 101,325 pascals.
Common Practical Uses
Calculate from Standard Atmosphere (atm) back to Torr (Torr).
Frequently used unit conversions in this category:
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There are 0.001316 atmospheres in 1 torr. Exactly 1 Torr is equal to 0.001316 atm.
The conversion formula is: Standard Atmosphere = atm = Torr × 0.00131579. Applying this to 1 Torr gives: 1 × 0.001316 = 0.001316 atm.
To convert in reverse from atmospheres to torr, multiply by the inverse factor: 1 atm = 760 Torr. Alternatively, divide your Standard Atmosphere amount by 0.001316.
For quick estimates, divide the Torr value by 760.
Torr (Torr) belongs to the Vacuum Scientific system, commonly used in High-vacuum systems, Semiconductor etching chambers, Mass spectrometry. In comparison, Standard Atmosphere (atm) is part of the Standard Reference system, frequently applied in Thermodynamics, Chemical equilibrium, High-pressure physics.
Key milestones include: 1 Torr = 0.001316 atm, 5 Torr = 0.0066 atm, 10 Torr = 0.0132 atm, 50 Torr = 0.0658 atm, and 100 Torr = 0.1316 atm.