psi to millibars
Convert pound per square inch to millibar — instant, free, with the formula shown.
How to convert pound per square inch to millibar
To convert pound per square inch to millibar, multiply by 68.94757293:
For example, 10 psi × 68.947573 = 689.475729 mbar.
psi to mbar conversion table
| psi (psi) | millibars (mbar) |
|---|---|
| 1 psi | 68.947573 mbar |
| 2 psi | 137.895146 mbar |
| 5 psi | 344.737865 mbar |
| 10 psi | 689.475729 mbar |
| 25 psi | 1723.689323 mbar |
| 50 psi | 3447.378647 mbar |
| 100 psi | 6894.757293 mbar |
| 250 psi | 17236.893233 mbar |
| 500 psi | 34473.786466 mbar |
| 1000 psi | 68947.572932 mbar |
Other pound per square inch conversions
Convert to millibar from another unit
psi to mbar — frequently asked
How many millibars are in 1 pound per square inch?
1 pound per square inch = 68.947573 millibars (psi × 68.947573 = mbar).
What is the formula to convert pound per square inch to millibar?
Multiply your pound per square inch value by 68.94757293 to get millibar.
How do I convert 10 psi to millibars?
10 psi = 689.475729 mbar. For 100 psi the answer is 6894.757293 mbar. Use the calculator on this page for any other value.
When to convert pound per square inch to millibar
Pressure conversion — common questions
What's the difference between bar and psi?
1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.
Is 1 atmosphere the same as 1 bar?
Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.
Why is blood pressure in mmHg?
Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.