Millibar to PSI Converter (mbar to psi)

How to Convert Millibar to PSI

Formula: PSI = Millibar × 0.01450377

Example: 1 mbar = 0.01450377 psi

You can also use the interactive converter above. Simply enter any Millibar value and the equivalent PSI value will appear instantly. Click the ⇄ button to reverse the conversion.

A little context on Millibar and PSI helps this conversion stick, along with some frequently asked questions below.

Step-by-step example — Convert 1000 mbar to psi:

What is Millibar and PSI?

A Millibar (mbar) equals one-thousandth of a bar and is the standard unit for weather pressure reports.

PSI (pounds per square inch) is the imperial pressure unit used throughout the US for everyday pressure measurement.

Real World Uses of Millibar to PSI Conversion

• Millibar: Commonly used for reporting atmospheric pressure in weather forecasts.
• PSI: Commonly used for rating hydraulic and pneumatic tool pressure.
• Millibar: Commonly used on ship and aircraft barometers for tracking storm systems.
• PSI: Commonly used in the US for car and bicycle tyre pressure.

Frequently Asked Questions

What is the formula to convert Millibar to PSI?

The formula is: PSI = Millibar x 0.01450377. Multiply any Millibar value by 0.01450377 to get the equivalent in PSI.

What is 1 Millibar in PSI?

1 mbar = 0.01450377 psi.

How many Millibar are in 1 PSI?

1 psi = 68.9475908677537 mbar.

Is Millibar bigger or smaller than PSI?

Millibar is smaller than PSI. 1 PSI = 68.9475908677537 mbar.

What is 1013 mbar in psi?

1013 mbar = 14.69231706 psi.

What is 50 psi in mbar?

50 psi = 3,447.38 mbar.

What millibar reading indicates a major storm?

Intense hurricanes often have central pressures below 950 millibars — the lower the reading, the more powerful the storm.