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Conversion Formula:
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The mmHg to PSI conversion is used to convert pressure measurements from millimeters of mercury to pounds per square inch. This conversion is commonly used in various scientific, medical, and engineering applications where different pressure units are required.
The calculator uses the conversion formula:
Where:
Explanation: This formula provides the exact mathematical relationship between these two pressure units, allowing for accurate conversions in both directions.
Details: Accurate pressure unit conversion is essential in fields like medicine (blood pressure measurements), engineering (fluid systems), meteorology (atmospheric pressure), and industrial applications where different measurement systems are used.
Tips: Enter the pressure value in millimeters of mercury (mmHg). The value must be positive and valid. The calculator will automatically compute the equivalent value in pounds per square inch (PSI).
Q1: What is mmHg used for?
A: Millimeters of mercury is commonly used in medicine for blood pressure measurements, in meteorology for atmospheric pressure, and in various scientific applications.
Q2: What is PSI used for?
A: Pounds per square inch is widely used in engineering, automotive (tire pressure), industrial systems, and many mechanical applications, particularly in countries using imperial units.
Q3: How accurate is the conversion factor?
A: The conversion factor 0.01934 is derived from the exact relationship between these units and provides precise conversions for most practical applications.
Q4: Can I convert PSI back to mmHg?
A: Yes, to convert PSI to mmHg, use the formula: mmHg = PSI ÷ 0.01934 or mmHg = PSI × 51.7149.
Q5: Why are there different pressure units?
A: Different fields and regions developed their own pressure measurement standards based on local practices, available equipment, and historical conventions.