Pounds per square inch to bar
Type a value in psi to get it in bar instantly.
20.68bar
That's 2.8× as strong as blood plasma, while seawater is 1.31× higher. That would hold up a column of water about 210.9 meters tall.
Convert the other way: bar to psi
What it means
How hard does it pull?
Van ’t Hoff’s law is exact only for dilute solutions at 25 °C. Concentrated brines deviate, which is why desalination plants use measured data.
The math
How to convert psi to bar
To convert pounds per square inch to bar, multiply by 0.0689476.
Example: 300 psi × 0.0689476 = 20.6843 bar.
In the other direction, 1 bar = 14.5038 psi.
Every unit
Your pressure in every unit
Tables
psi to bar conversion table
| psi | bar |
|---|---|
| 0.1 psi | 0.00689476 bar |
| 1 psi | 0.0689476 bar |
| 5 psi | 0.344738 bar |
| 7.4 psi | 0.510212 bar |
| 10 psi | 0.689476 bar |
| 25 psi | 1.72369 bar |
| 30 psi | 2.06843 bar |
| 50 psi | 3.44738 bar |
| 60 psi | 4.13685 bar |
| 100 psi | 6.89476 bar |
bar to psi conversion table
| bar | psi |
|---|---|
| 0.1 bar | 1.45038 psi |
| 1 bar | 14.5038 psi |
| 5 bar | 72.5189 psi |
| 7.4 bar | 107.328 psi |
| 10 bar | 145.038 psi |
| 25 bar | 362.594 psi |
| 30 bar | 435.113 psi |
| 50 bar | 725.189 psi |
| 60 bar | 870.226 psi |
| 100 bar | 1,450.38 psi |
Quick answers
Quick answers
- How many bar is 1 psi?
- 1 psi is 0.0689476 bar.
- How many bar is 10 psi?
- 10 psi is 0.689476 bar.
- How many bar is 300 psi?
- 300 psi is 20.6843 bar.
The units
About these units
Pounds per square inch (psi)
The US unit, on every RO pump gauge.
Bar (bar)
The working unit in desalination and membrane work.
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