Pressure Converter
Quickly convert pressure measurements across different systems. Whether you're checking tire pressure, scientific data, or weather reports, this tool handles all major units.
What is the standard unit of pressure?
The Pascal (Pa) is the SI unit of pressure, defined as one Newton per square meter. However, in various industries, units like PSI (pounds per square inch), Bar, and Atmospheres (atm) are more common.
What is 1 atmosphere of pressure?
One standard atmosphere (1 atm) is approximately the average atmospheric pressure at sea level. It is equal to 101,325 Pascals, 14.696 PSI, or 1.01325 Bar.
Why is pressure measured in "inches of mercury"?
Historically, pressure was measured using a column of liquid (mercury). "Inches of Mercury" (inHg) refers to the height of a mercury column that atmospheric pressure can support. This unit is still common in aviation and weather forecasting.
How do I convert PSI to Bar?
To convert PSI to Bar, multiply the PSI value by approximately 0.06895. Conversely, to convert Bar to PSI, multiply by 14.5038.