Pounds per Square Inch to Bar Converter
Convert Pounds per Square Inch to Bar with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns Pounds per Square Inch into Bar instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — Pounds per Square Inch to Bar
How to use this calculator
- Enter the value in Pounds per Square Inch in the input box.
- Read the result in Bar — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common Pounds per Square Inch amounts.
The formula
Bar = Pounds per Square Inch × 0.0689476
Worked example
30 psi = 2.06843 bar — in full, 30 Pounds per Square Inch converts to 2.06843 Bar. Tyre pressure, weather maps and diving are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert Pounds per Square Inch to Bar?
Multiply the value in Pounds per Square Inch by 0.0689476. For example, 30 Pounds per Square Inch × 0.0689476 = 2.06843 Bar. To go the other way, divide by 0.0689476 instead — or press Swap in the converter above.
How many Bar are in one Pound per Square Inch?
One Pound per Square Inch equals 0.0689476 Bar. Scaling up, 10 Pounds per Square Inch = 0.689476 Bar and 100 Pounds per Square Inch = 6.89476 Bar. The converter uses the full-precision factor, so typed values are more precise than the rounded figure quoted here.
Which is bigger, a Pound per Square Inch or a Bar?
A Bar is bigger. One Bar equals 14.5038 Pounds per Square Inch, while one Pound per Square Inch is only 0.0689476 Bar. So a measurement that looks smaller in Bar is reflecting the scale difference, not an error.
What is 30 Pounds per Square Inch in Bar?
30 Pounds per Square Inch is 2.06843 Bar. The math is 30 × 0.0689476 = 2.06843. Try any other amount in the converter above and the result updates as you type.