PSI to Bar Converter
Convert pound per square inch to bar instantly. 1 psi = 0.06894757293 bar, worked steps and a full reference table.
How to use it
- Type the value in pound per square inch — the result updates as you type.
- Use Swap to flip the direction, or change either dropdown to convert between any two units.
- Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.
Examples
| 1 psi | 0.06894757293 bar |
| 5 psi | 0.3447378647 bar |
| 10 psi | 0.6894757293 bar |
| 100 psi | 6.894757293 bar |
One pound per square inch equals 0.068947573 bars (bar). To convert pound per square inches to bars, multiply by 0.068947573; to go back the other way, multiply by 14.503774 instead.
The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.
What pound per square inches and bars actually measure
Pound per square inch (psi) — Pounds per square inch. Tyre pressures, air compressors and plumbing in the US.
Bar (bar) — A bar is 100,000 pascals, very close to atmospheric pressure at sea level. Tyre pressures, diving and industrial equipment in Europe.
PSI to Bar conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| psi | bar |
|---|---|
| 1 psi | 0.068947573 bar |
| 2 psi | 0.13789515 bar |
| 5 psi | 0.34473786 bar |
| 10 psi | 0.68947573 bar |
| 25 psi | 1.7236893 bar |
| 50 psi | 3.4473786 bar |
| 100 psi | 6.8947573 bar |
How to convert pound per square inches to bars by hand
Multiply the number of pound per square inches by 0.068947573.
For example, 25 psi × 0.068947573 = 1.7236893 bar.
Going the other way, divide by 0.068947573 — or multiply by 14.503774, which is the same thing and easier to do in your head.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
How many bar are in 1 psi?
1 psi equals exactly 0.06894757293 bar. Multiply any value in pound per square inch by 0.06894757293 to get bar.
Is anything uploaded to a server?
No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.
Last updated 18 August 2026