Torr to Bars
An instant torr-to-bars converter, with the formula and a reference table below.
| Torr | Bars |
|---|---|
| 1 Torr | 0.001333 bar |
| 2 Torr | 0.002666 bar |
| 3 Torr | 0.004 bar |
| 5 Torr | 0.006666 bar |
| 10 Torr | 0.013332 bar |
| 25 Torr | 0.033331 bar |
| 50 Torr | 0.066661 bar |
| 100 Torr | 0.133322 bar |
How to use
- Enter a value in the Torr field.
- The Bars figure appears immediately — no button to press.
- Typing in the Bars field converts back to Torr the same way.
- Use the reference table for the values that come up most often.
Torr to Bars formula
To convert torr to bars, multiply by 0.00133322368.
bar = Torr × 0.00133322368
Why this factor: the torr and the bar are both defined against the pascal, so dividing one definition by the other gives 0.00133322368 directly. Both definitions are set out in full below.
To go the other way, divide by 0.00133322368 — or use the Bars to Torr converter, which is the same calculation reversed.
Worked example
Given 760 Torr, multiplying by 0.00133322368 yields 1.01325 bar.
760 Torr × 0.00133322368 = 1.01325 bar
The converter above does this for any value you type, in either direction.
What is a torr?
A torr is a vacuum-measurement pressure unit, defined as one 760th of a standard atmosphere.
Definition: Exactly 101,325/760 pascals, which is about 133.3224 Pa. Named after Evangelista Torricelli.
Where it is used: Vacuum systems, mass spectrometry, and semiconductor process chambers.
Worth knowing: Almost identical to the mmHg but not exactly equal — they differ by about one part in seven million, which matters only in precision metrology.
What is a bar?
A bar is a metric pressure unit chosen to sit very close to atmospheric pressure.
Definition: Exactly 100,000 pascals by definition. Standard atmosphere is 1.01325 bar, so a bar is slightly less.
Where it is used: European tire and hydraulic pressures, diving depth equivalents, and espresso machine ratings.
Worth knowing: Close to one atmosphere but not equal to it — the difference is about 1.3%.
Torr vs Bars
The torr is a specialized unit while the bar is a metric unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many bars are in a torr?
One torr equals 0.00133322368 bars.
What is the formula to convert torr to bars?
Multiply the number of torr by 0.00133322368. To reverse it, divide by 0.00133322368 instead.
How do I convert bars back to torr?
Divide by 0.00133322368, which is the same as multiplying by 750.061683.
How many bars are in 10 torr?
10 Torr works out to 0.013332 bar.
Is there anything to watch out for with torr?
Almost identical to the mmHg but not exactly equal — they differ by about one part in seven million, which matters only in precision metrology.
How is the torr defined?
Exactly 101,325/760 pascals, which is about 133.3224 Pa. Named after Evangelista Torricelli.