PSI to MMHG Converter: Convert Pounds per Square Inch to mmHg
Easily convert pressure from pounds per square inch (psi) to millimeters of mercury (mmHg). This tool is perfect for engineers, scientists, and medical professionals alike.
Understanding the Conversion from PSI to mmHg
Pressure is a crucial measurement in fields such as medicine, science, and engineering. While pounds per square inch (psi) is widely used in mechanical and industrial settings, millimeters of mercury (mmHg) is a traditional unit still commonly used in medical and laboratory contexts. Converting from psi to mmHg helps maintain accuracy and compatibility across disciplines and regions.
What Is PSI?
PSI, or pounds per square inch, is a unit of pressure in the imperial measurement system. It expresses the force of one pound applied to an area of one square inch. Commonly used in the United States, it is found in tire pressures, hydraulic systems, and industrial applications.
What Is mmHg?
Millimeters of mercury (mmHg) is a pressure unit that originates from the pressure exerted by a 1mm column of mercury. It is used in barometry and remains the standard for blood pressure measurement in medicine. While not an SI unit, it is still widely recognized for its precision and practicality in scientific work.
Conversion Formula
mmHg = psi × 51.7149
Example: 1 psi × 51.7149 = 51.71 mmHgPSI to MMHG Conversion Table
| Pounds per Square Inch (psi) | Millimeters of Mercury (mmHg) |
|---|---|
| 1 | 51.71 |
| 2 | 103.43 |
| 5 | 258.57 |
| 10 | 517.15 |
| 14.7 | 760.00 |
| 20 | 1034.30 |
Why Convert PSI to mmHg?
- Medical Accuracy: Blood pressure monitors use mmHg, while some systems provide output in psi.
- Scientific Research: Lab equipment often reports in psi, but mmHg may be the desired unit for publication.
- Standardization: Converting to mmHg ensures consistency with global healthcare and research standards.
- Data Interpretation: Converting units facilitates easier reading of pressure values across industries.
Comparison: PSI vs mmHg
| Attribute | PSI | mmHg |
|---|---|---|
| System | Imperial | Metric/Traditional |
| Used In | Industry, Engineering | Medicine, Science |
| Relation | 1 psi = 51.7149 mmHg | 1 mmHg ≈ 0.01934 psi |
| Origin | Force per area | Height of mercury column |
FAQ: PSI to MMHG
How many mmHg in 1 psi?
There are approximately 51.7149 mmHg in 1 psi.
What is 14.7 psi in mmHg?
14.7 psi is approximately 760 mmHg, which equals atmospheric pressure at sea level.
Is mmHg still used today?
Yes, it is the standard for blood pressure and still widely used in labs and vacuum systems.
Is the conversion linear?
Yes. The conversion factor is fixed and does not vary with temperature or environment.
Applications of PSI to mmHg Conversion
- Developing medical devices that use psi internally but must output in mmHg.
- Analyzing lab data from instruments calibrated in psi.
- Creating scientific graphs or papers in mmHg for global audiences.
- Comparing sensor output across industries.
Conclusion
Converting PSI to mmHg allows professionals across science, medicine, and engineering to work with pressure data in a clear, consistent manner. Whether you're a researcher preparing a paper, a medical professional adjusting instruments, or an engineer designing pressure-sensitive systems, this conversion is essential. Use our tool for fast, reliable results every time.