Psi to Bar Converter
Enter a value in pounds per square inch to convert it to bar — 1 psi = 0.0689 bar.
Reviewed by the ToolNestr Editorial Team — July 2026
How to convert pounds per square inch to bar
Converting pounds per square inch to bar is a simple multiplication: take your pressure in pounds per square inch and multiply by the fixed conversion factor of 0.0689476 to get bar. Because the factor never changes, the same calculation works for any value, from tiny amounts to very large ones. The converter above applies it the moment you type, with no rounding errors in the underlying maths.
Handy for tyre and equipment pressures when a US spec in psi needs to be read in bar. Knowing how to move between pounds per square inch and bar is useful whenever measurements are given in one system but you need them in the other — for shopping, travel, study, cooking, engineering or simply comparing figures from different countries.
The reference table below lists common pounds per square inch values already converted to bar, so you can read off everyday amounts at a glance without typing. For the opposite direction, use the Bar to Psi Converter, which reverses the calculation exactly.
The formula and a worked example
Formula
bar = psi × 0.0689476
Worked example
To convert 10 pounds per square inch: 10 × 0.0689476 = 0.6895 bar. To convert 25 pounds per square inch: 25 × 0.0689476 = 1.7237 bar.
Psi to Bar conversion table
| PSI (psi) | Bar (bar) |
|---|---|
| 1 | 0.0689 |
| 2 | 0.1379 |
| 5 | 0.3447 |
| 10 | 0.6895 |
| 25 | 1.7237 |
| 50 | 3.4474 |
| 100 | 6.8948 |
| 250 | 17.2369 |
| 500 | 34.4738 |
| 1,000 | 68.9476 |
Values are rounded for display; the converter above keeps full precision.
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Frequently asked questions
How do I convert pounds per square inch to bar?
Multiply the number of pounds per square inch by 0.0689476. For example, 10 psi × 0.0689476 = 0.6895 bar. The converter above does this automatically.
How many bar are in one pounds per square inch?
There are 0.0689 bar in one pounds per square inch. Multiply by 0.0689476 for any amount.
Is this Psi to Bar converter accurate?
Yes. It uses the exact conversion factor of 0.0689476, so results are precise. Values shown in the table are rounded for readability.
How do I convert bar back to pounds per square inch?
Use our Bar to Psi Converter for the reverse direction, or divide the bar value by 0.0689476.