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Millibars to PSI Converter

Quick answer: 1 mbar = 0.0145037738 psi. To convert millibars to PSI, divide by 68.947573.

mbar
psi

PSI = Millibars × 0.0145037738

Swap: PSI to Millibars

Millibars to PSI conversion table

MillibarsPSI
1 mbar0.0145037738 psi
2 mbar0.0290075475 psi
5 mbar0.0725188689 psi
10 mbar0.1450377377 psi
25 mbar0.3625943443 psi
50 mbar0.7251886887 psi
100 mbar1.450377 psi

How to convert millibars to PSI

PSI = Millibars × 0.0145037738. For example, 2 mbar = 0.0290075475 psi. Type a value in either box above: the other one updates instantly, both ways.

What is a millibar?

A millibar (mbar) is 1/1,000 bar or 100 Pa, the same as a hectopascal used on weather maps.

What is a psi?

PSI (pounds per square inch) is the US unit of pressure for tires and air compressors; 1 psi ≈ 6.895 kPa.

How do I convert millibars to PSI?

Use the formula PSI = Millibars × 0.0145037738. Type a value in the millibars box and the result appears instantly.

How many PSI are in 1 millibar?

1 mbar = 0.0145037738 psi.

Is this converter free and private?

Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.

Is this gauge or absolute pressure?

The conversion factor is the same for both. Tire gauges show gauge pressure (above the air around you); add about 14.7 psi or 1.013 bar to get absolute pressure.