Psi Converter
Convert Psi to Millimeter Mercury 0 176 C and more • 57 conversions
0
Unit Explanations
Pounds per Square Inchpsi
Source UnitPsi or 'pounds per square inch' is a unit used to measure pressure. It defines the pressure resulting from a force of one pound-force applied to an area of one square inch. As a non-SI unit, it is commonly used in the United States and other countries still employing the Imperial system. Psi is vital in various engineering and mechanical applications, providing a practical measure for pressure in car tires, hydraulic systems, and more. It offers a direct relationship to other pressure units through conversion factors.
Current Use
Today, psi is extensively used in various fields, particularly in the United States. It is prevalent in automotive applications, where it measures tire pressure, ensuring safety and performance. Additionally, psi is crucial in aerospace, measuring cabin pressure and hydraulic systems. In industrial settings, it is used for pressure gauges, compressors, and pneumatic tools. Despite the global trend towards SI units, psi's practical relevance maintains its usage in specific regions and industries.
Fun Fact
Psi is still a preferred unit in U.S. automotive manuals.
Millimeter of Mercury (0.176°C)mmHg
Target UnitThe millimeter of mercury (mmHg) is a unit of pressure derived from the height of a column of mercury exactly 1 millimeter high under the influence of Earth's gravity at a standard acceleration of 9.80665 m/s². It is commonly used in medicine and meteorology to measure blood pressure and atmospheric pressure, respectively. The measurement is equivalent to 133.322 pascals, and it is crucial in various scientific applications for accurately gauging pressure differentials.
Current Use
The millimeter of mercury is widely used in clinical settings to measure blood pressure, expressed as systolic over diastolic readings. It is also utilized in meteorology for atmospheric pressure measurements, where it provides a practical means of reporting weather conditions.
Fun Fact
The blood pressure cuff used in medical settings was invented in 1881 by Samuel Siegfried Karl Ritter von Basch.
All Pressure Conversions
105 convertersPopular Conversions
📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
Quick Examples
💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Pounds per Square Inch
pressure • Non-SI
Definition
Psi or 'pounds per square inch' is a unit used to measure pressure. It defines the pressure resulting from a force of one pound-force applied to an area of one square inch. As a non-SI unit, it is commonly used in the United States and other countries still employing the Imperial system. Psi is vital in various engineering and mechanical applications, providing a practical measure for pressure in car tires, hydraulic systems, and more. It offers a direct relationship to other pressure units through conversion factors.
History & Origin
The psi unit emerged from the need to measure pressure in the Imperial system, prevalent in the United States and other regions before the widespread adoption of the metric system. It is a derivative unit representing the pressure exerted by a force of one pound-force on a square inch of surface area. The concept of pressure measurement has evolved over time, with psi becoming a standard term in industries reliant on precise pressure control.
Etymology: The term 'psi' stands for 'pounds per square inch,' combining 'pound,' a unit of force, and 'square inch,' a unit of area.
Current Use
Today, psi is extensively used in various fields, particularly in the United States. It is prevalent in automotive applications, where it measures tire pressure, ensuring safety and performance. Additionally, psi is crucial in aerospace, measuring cabin pressure and hydraulic systems. In industrial settings, it is used for pressure gauges, compressors, and pneumatic tools. Despite the global trend towards SI units, psi's practical relevance maintains its usage in specific regions and industries.
💡 Fun Facts
- •Psi is still a preferred unit in U.S. automotive manuals.
- •Psi is used in the pressure ratings of paintball guns.
- •The average human bite exerts about 200 psi.
📏 Real-World Examples
🔗 Related Units
Millimeter of Mercury (0.176°C)
pressure • Non-SI
Definition
The millimeter of mercury (mmHg) is a unit of pressure derived from the height of a column of mercury exactly 1 millimeter high under the influence of Earth's gravity at a standard acceleration of 9.80665 m/s². It is commonly used in medicine and meteorology to measure blood pressure and atmospheric pressure, respectively. The measurement is equivalent to 133.322 pascals, and it is crucial in various scientific applications for accurately gauging pressure differentials.
History & Origin
The use of mercury as a pressure measurement standard dates back to the 17th century, when Evangelista Torricelli, a student of Galileo, discovered that atmospheric pressure could support a column of mercury in a tube. This led to the first barometer and the subsequent use of mmHg as a unit of pressure.
Etymology: The term 'millimeter' derives from the Latin 'mille' meaning 'thousand' and 'metrum' meaning 'measure.' 'Mercury' comes from the Latin 'mercurius,' the name of the Roman god of commerce and financial gain, reflecting the element's historical significance.
Current Use
The millimeter of mercury is widely used in clinical settings to measure blood pressure, expressed as systolic over diastolic readings. It is also utilized in meteorology for atmospheric pressure measurements, where it provides a practical means of reporting weather conditions.
💡 Fun Facts
- •The blood pressure cuff used in medical settings was invented in 1881 by Samuel Siegfried Karl Ritter von Basch.
- •In 1983, the mmHg was officially recognized as a unit of pressure by the National Institute of Standards and Technology (NIST).
- •The barometric pressure at sea level is typically around 760 mmHg, which is used as a standard reference.
📏 Real-World Examples
🔗 Related Units
Related Pressure Conversions
Explore more pressure conversions for your calculations.
Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
Is this to converter accurate?▼
Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.
Can I convert back to ?▼
Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.