Torr to Atmosphere Converter
Pressure · unit-converter
Convert Torr to Atmosphere with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through pascal with fixed definitions (standard atmosphere = 101,325 Pa; torr and mmHg = atm/760; plus industrial/manometer units like kgf/cm², inHg, inH2O, and mmH2O).
About Torr
The torr is defined as 1/760 of a standard atmosphere (≈133.32236842105263 Pa). It is widely used in vacuum science alongside pascal.
About Atmosphere
The standard atmosphere (atm) is defined as exactly 101,325 Pa. It links legacy chemistry and physics problems to SI.
How to convert torr to atmosphere
1 torr equals 0.0013157894736842105 atmosphere in this tool (via pascal):
1 torr = (133.32236842105263 Pa ÷ 101325 Pa) atm = 0.0013157894736842105 atm
Each torr carries 133.32236842105263 Pa and each atmosphere 101325 Pa, so one torr equals 133.32236842105263 ÷ 101325 atm.
Let p(torr) be pressure in Torr (torr), and p(atm) in Atmosphere (atm). Then:
p(atm) = p(torr) × (133.32236842105263 / 101325)
Equivalently, divide by how many torr fit into one atm (Pa per atm divided by Pa per torr):
p(atm) = p(torr) ÷ 760
Examples
Example #1: Convert 1 torr to atmosphere
1 torr = 1 torr × (133.32236842105263/101325) atm = 0.0013157895 atm
1 torr = 1 torr ÷ 760 = 0.0013157895 atm
1 torr × (133.32236842105263/101,325) = 0.001316 atm
Example #2: Convert 10 torr to atmosphere
10 torr = 10 torr × (133.32236842105263/101325) atm = 0.0131578947 atm
10 torr = 10 torr ÷ 760 = 0.0131578947 atm
10 torr × (133.32236842105263/101,325) = 0.013158 atm
Summary
To convert Torr to Atmosphere, multiply the value in torr by (133.32236842105263 Pa per torr) / (101325 Pa per atm). Equivalently: value_atm = value_torr × (133.32236842105263 / 101325). Numerically, 1 torr equals 0.0013157894736842105 atm.
Relationship context
Both Torr and Atmosphere are converted by fixed multiples of the pascal. Multiplying by (Pa per torr) ÷ (Pa per atm) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| Torr (torr) | Atmosphere (atm) |
|---|---|
| 0.1 | 0.0001315789 |
| 1 | 0.0013157895 |
| 2 | 0.0026315789 |
| 3 | 0.0039473684 |
| 4 | 0.0052631579 |
| 5 | 0.0065789474 |
| 6 | 0.0078947368 |
| 7 | 0.0092105263 |
| 8 | 0.0105263158 |
| 9 | 0.0118421053 |
| Torr (torr) | Atmosphere (atm) |
|---|---|
| 10 | 0.0131578947 |
| 20 | 0.0263157895 |
| 30 | 0.0394736842 |
| 40 | 0.0526315789 |
| 50 | 0.0657894737 |
| 60 | 0.0789473684 |
| 70 | 0.0921052632 |
| 80 | 0.1052631579 |
| 90 | 0.1184210526 |
| 100 | 0.1315789474 |