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Common Benchmarks
Soccer ball
12 psi
Atmospheric pressure
101.325 kPa
Espresso machine
9 bar
Natural gas line
0.25 psi
Storm center
950 hPa
Bicycle tire
80 psi
Formula
atm = Torr × 0.0013157895
Example
Example: convert 40 torr to atmospheres.
40 Torr = 0.05263158 atm
Conversion table
| torr (Torr) | atmospheres (atm) |
|---|---|
| 1 Torr | 0.00131579 atm |
| 2 Torr | 0.00263158 atm |
| 5 Torr | 0.00657895 atm |
| 10 Torr | 0.01315789 atm |
| 20 Torr | 0.02631579 atm |
| 50 Torr | 0.06578947 atm |
| 100 Torr | 0.13157895 atm |
Explanation
These are both units.
How to convert torr to atmospheres
- Start with the value in torr (Torr).
- Multiply it by 0.0013157895.
- The result is the measurement in atmospheres (atm).
Example: 40 Torr → 0.05263158 atm
Frequently Asked Questions
How much is 40 torr in atmospheres?
40 torr is about 0.052632 atmospheres.
How many atmospheres is 1 torr?
1 torr is about 0.001316 atmospheres.
How many torr is 1 atmosphere?
1 atmosphere equals 760 torr.
What is the difference between torr and atmospheres?
Both measure pressure, but they are commonly used in different contexts. Torr are used in lab work and vacuum technology. Atmospheres are used as a reference for standard atmospheric pressure.
Where are torr and atmospheres used?
In practice: Torr are used in lab work and vacuum technology. Atmospheres are used as a reference for standard atmospheric pressure.
Why does 1 torr equal 0.001316 atmospheres?
Because pressure units are defined with a fixed relationship (often relative to the pascal). To convert, multiply by that factor.