Torr to Atmospheres Converter

Enter the pressure in torr below to get the value converted to atmospheres.

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Result in Atmospheres:

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1 Torr = 0.001316 atm

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How to Convert Torr to Atmospheres

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To convert a measurement in torr to a measurement in atmospheres, divide the pressure by the following conversion ratio: 760 torr/atmosphere.

Since one atmosphere is equal to 760 torr, you can use this simple formula to convert:

atmospheres = torr ÷ 760

The pressure in atmospheres is equal to the pressure in torr divided by 760.

For example, here's how to convert 500 torr to atmospheres using the formula above.
atmospheres = (500 Torr ÷ 760) = 0.657895 atm

Torr and atmospheres are both units used to measure pressure. Keep reading to learn more about each unit of measure.

What Is a Torr?

The torr is a measure of pressure equal to 1/760 of an atmosphere. Torr is based on an absolute scale of pressure, which is equivalent to the atmospheric pressure plus the gauge pressure.

The torr is a non-SI metric unit for pressure. Torr can be abbreviated as Torr; for example, 1 torr can be written as 1 Torr.

Learn more about torr.

What Is an Atmosphere?

The atmosphere is a reference measure of pressure equal to 101,325 pascals or 1,013,250 dynes. The atmosphere was originally defined as the pressure of 760 millimeters of mercury at standard gravity at 0 °C, but was later redefined in 1954 to be equal to 1,013,250 dynes.

Atmospheres can be abbreviated as atm; for example, 1 atmosphere can be written as 1 atm.

Learn more about atmospheres.

Torr to Atmosphere Conversion Table

Table showing various torr measurements converted to atmospheres.
Torr Atmospheres
1 Torr 0.001316 atm
2 Torr 0.002632 atm
3 Torr 0.003947 atm
4 Torr 0.005263 atm
5 Torr 0.006579 atm
6 Torr 0.007895 atm
7 Torr 0.009211 atm
8 Torr 0.010526 atm
9 Torr 0.011842 atm
10 Torr 0.013158 atm
20 Torr 0.026316 atm
30 Torr 0.039474 atm
40 Torr 0.052632 atm
50 Torr 0.065789 atm
60 Torr 0.078947 atm
70 Torr 0.092105 atm
80 Torr 0.105263 atm
90 Torr 0.118421 atm
100 Torr 0.131579 atm
200 Torr 0.263158 atm
300 Torr 0.394737 atm
400 Torr 0.526316 atm
500 Torr 0.657895 atm
600 Torr 0.789474 atm
700 Torr 0.921053 atm
800 Torr 1.0526 atm
900 Torr 1.1842 atm
1,000 Torr 1.3158 atm

More Torr & Atmosphere Conversions