Pounds per Square Inch to Millibar Pressure Converter
Convert PSI (psi) to Millibar (mbar) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Millibar to PSI (mbar to psi) ►
How to convert Pounds per Square Inch to Millibar
1 psi = 1 lbfin2
1 mbar = 100 Pa
1 psi (psi) is equal to 68.94757 millibar (mbar).
mbar = psi × 68.94757
Multiply the pressure in psis by 68.94757:
Example: Convert 14.696 psi to mbar:
mbar = 14.696 × 68.94757 = 1013.25 mbar
What is a PSI?
The PSI (psi) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Millibar?
The Millibar (mbar) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts pressure from PSI into Millibar. One psi equals 68.94757293 mbar.
PSI to Millibar conversion table
Common psi values and the matching mbar result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| PSI (psi) | Millibar (mbar) |
|---|---|
| 1 psi | 68.94757293 mbar |
| 5 psi | 344.73786465 mbar |
| 10 psi | 689.4757293 mbar |
| 14.696 psi | 1013.253531779 mbar |
| 100 psi | 6894.757293 mbar |
| 1000 psi | 68947.57293 mbar |
How this calculator works
The form on this page is a PSI-to-Millibar converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the mbar result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many mbar are in 1 psi?
1 psi = 68.94757293 mbar.
How do I convert PSI to Millibar?
Multiply the pressure in psis by 68.94757:
Is this psi to mbar converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.