Millibar to PSI
Convert Millibar to PSI instantly. Free online pressure unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Millibar to PSI conversions.
Reserved above the conversion cards and below the converter.
Formula
psi = millibar × 0.014504
millibar = psi × 68.947573
Conversion table
| 1 mbar | 0.014504 psi |
| 5 mbar | 0.072519 psi |
| 10 mbar | 0.145038 psi |
| 20 mbar | 0.290075 psi |
| 50 mbar | 0.725189 psi |
| 100 mbar | 1.450377 psi |
| 500 mbar | 7.251887 psi |
| 1000 mbar | 14.503774 psi |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the millibar (mbar). A millibar is 100 pascals.
What is the destination unit in this conversion?
The destination unit is the psi (psi). Pounds per square inch.
How do I convert millibar to psi?
Multiply the millibar value by 0.014504. For example, 10 mbar × 0.014504 = 0.145038 psi.
Is the millibar to psi conversion exact?
Yes. Both units are defined as fixed multiples of the pascal, the SI-derived unit of pressure, so the conversion factor follows directly from those exact definitions rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in millibar needs to be compared with, or reported in, psi, such as in engineering specifications, weather readings, tire pressure, or industrial and scientific work.
Can I convert psi back to millibar?
Yes. Multiply the psi value by 68.947573 to get millibar.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts millibar (mbar) to psi (psi) within the pressure converter.
A millibar is 100 pascals. Pounds per square inch.
The formula is psi = millibar × 0.014504, based on each unit's fixed relationship to the pascal, the pressure converter's base unit.
The conversion is exact, since both units are tied to the pascal by a fixed numerical ratio rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common millibar values already converted to psi.