PSI to Millibar Converter
Convert PSI to millibar: multiply by 68.9476. 1 PSI ≈ 68.95 mbar. Free tool for cross-unit pressure checks.
How to Convert Psi to Millibar
Multiply PSI by 68.9476.
Conversion Formula:
value * 68.9476Conversion Examples
Example: 14.5 PSI to mbar
- 14.5 × 68.9476 ≈ 1000 mbar
≈ 1000 mbar
Near 1 bar.
Example: 1 PSI to mbar
- 1 × 68.9476 ≈ 68.95 mbar
≈ 68.95 mbar
Unit scale.
Conversion Chart
| Psi | Millibar |
|---|---|
| 1 | 68.95 |
| 5 | 344.74 |
| 10 | 689.48 |
| 14.7 | 1013.25 |
| 20 | 1378.95 |
| 32 | 2206.32 |
| 50 | 3447.38 |
| 75 | 5171.07 |
| 100 | 6894.76 |
| 150 | 10342.14 |
Conversion Formula
PSI × 68.9476 = mbar
Quick Conversion Tip
Multiply PSI by ~68.95 for mbar; 14.5 PSI ≈ 1000 mbar.
Unit Definitions
Pound per Square Inch (psi)
Imperial pressure unit.
1 psi = 68.9476 mbar = 6.89476 kPa.
Millibar (mbar)
Atmospheric unit equal to hPa.
mbar to psi divide by 68.9476; mbar to kPa divide by 10; mbar to Pa multiply by 100.
Common Use Cases
- Cross-checking PSI to barometric mbar.
- Lab and teaching conversions.
- Mixed-unit datasheets.
- Sensor calibration notes.
Understanding the Conversion
1 PSI ≈ 68.9476 mbar. Multiply PSI by 68.9476.
Examples: 14.5 PSI ≈ 1000 mbar · 1 PSI ≈ 68.95 mbar · 30 PSI ≈ 2068 mbar.
Rare direct use; helpful when comparing US PSI to weather mbar scales.
Cross-checking PSI to barometric mbar. The table and FAQ on this page walk through the factor if you need it.
FAQs
How many mbar in one PSI?
About 68.9476 millibars per PSI.
How do you convert PSI to mbar?
Multiply by 68.9476, or convert PSI → bar → mbar (1 bar = 1000 mbar).
Is 14.7 PSI one atmosphere?
Yes—about 1013 mbar or 1.013 bar at sea level.