To convert psi to millibar, multiply by 68.94757293.
The calculation uses 1 psi = 68.94757293 mbar. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in mbar = value in psi × 68.94757293
psi- Input unit: psi
mbar- Output unit: millibar
How to use this calculator
- Enter a value in psi.
- Multiply by the stored conversion factor.
- Read the result in mbar; divide by the same factor to convert back.
Worked examples
Worked conversion
1 psi × 68.94757293 ≈ 68.94757293 mbar.
Reverse conversion
68.94757293 mbar ÷ 68.94757293 ≈ 1 psi. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 68.94757293 mbar per psi.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
psi to mbar table
| psi | mbar (rounded) |
|---|---|
| 0 | 0 |
| 1 | 68.94757293 |
| 2 | 137.8951459 |
| 5 | 344.7378647 |
| 10 | 689.4757293 |
| 100 | 6894.757293 |
Related calculators
Millibars to Pounds Per Square Inch ConverterTo convert millibar to psi, multiply by 0.01450377377.Pounds Per Square Inch to Atmospheres ConverterTo convert psi to atmospheres, multiply by 0.06804596391.Pounds Per Square Inch to Bar ConverterTo convert psi to bar, multiply by 0.06894757293.Pounds Per Square Inch to Torr ConverterTo convert psi to torr, multiply by 51.71493257.Pounds Per Square Inch to Megapascals ConverterTo convert psi to megapascals, multiply by 0.006894757293.Pounds-Force to Newtons ConverterTo convert pound force to newtons, multiply by 4.448221615.