mm Hg to PSI Calculator: Convert Millimeters of Mercury to Pounds per Square Inch
Convert millimeters of mercury (mm Hg) to pounds per square inch (PSI) with ease using our mm Hg to PSI calculator. This tool helps you quickly determine the equivalent pressure in PSI based on the mm Hg value entered.
Understanding mm Hg to PSI Conversion
Millimeters of mercury (mm Hg) and pounds per square inch (PSI) are both units used to measure pressure. However, they are used in different measurement systems. mm Hg is a metric unit commonly used in medicine, meteorology, and engineering, whereas PSI is widely used in the imperial system, especially in industrial applications. Converting between these two units is essential for comparing pressure measurements in various systems.
Conversion Factor
The conversion factor between millimeters of mercury (mm Hg) and pounds per square inch (PSI) is that 1 mm Hg is equal to approximately 0.0193368 PSI.
| Unit | Symbol | Equivalent |
|---|---|---|
| Millimeters of Mercury | mm Hg | 1 mm Hg = 0.0193368 PSI |
| Pounds per Square Inch | PSI | 1 PSI = 51.7149 mm Hg |
Formula for mm Hg to PSI Conversion
The formula to convert millimeters of mercury (mm Hg) to pounds per square inch (PSI) is:
PSI = mm Hg × 0.0193368
Where:
- mm Hg: Millimeters of mercury
- PSI: Pounds per square inch (the result)
Common Applications of mm Hg to PSI Conversion
| Application | Typical mm Hg Range | Typical PSI Range |
|---|---|---|
| Atmospheric Pressure | 760 mm Hg | 14.7 PSI |
| Vacuum Systems | 1-500 mm Hg | 0.019-9.668 PSI |
| Barometric Pressure | 1013 mm Hg | 19.5 PSI |
Frequently Asked Questions
What is the relationship between mm Hg and PSI?
Millimeters of mercury (mm Hg) is a metric unit commonly used in meteorology and medicine to measure pressure, especially in barometric readings and blood pressure measurements. PSI is used in the imperial system, mostly in industrial and engineering applications. The relationship between the two is that 1 mm Hg is equal to 0.0193368 PSI.
How do I convert mm Hg to PSI?
To convert millimeters of mercury (mm Hg) to pounds per square inch (PSI), multiply the mm Hg value by 0.0193368.
Why is mm Hg used instead of PSI in some regions?
Millimeters of mercury (mm Hg) is primarily used in scientific, meteorological, and medical applications where fine measurements of pressure are necessary. PSI, on the other hand, is more commonly used in industrial and mechanical settings in countries that use the imperial system, such as the United States.
Can I use this calculator for blood pressure measurements?
Yes, this calculator can be used for converting blood pressure measurements, which are often expressed in mm Hg, to PSI for industrial or engineering applications where PSI is used.