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To convert from millimeter of mercury (mmHg) to kilopound per square inch (ksi), use the following formula:
With is the ratio between the base units kilopound per square inch (ksi) and kilopascal (kPa).
Let's convert 5 millimeter of mercury (mmHg) to kilopound per square inch (ksi).
Using the formula:
Therefore, 5 millimeter of mercury (mmHg) is equal to kilopound per square inch (ksi).
Here are some quick reference conversions from millimeter of mercury (mmHg) to kilopound per square inch (ksi):
| millimeters of mercury | kilopound per square inch |
|---|---|
| 0.000001 mmHg | ksi |
| 0.001 mmHg | ksi |
| 0.1 mmHg | ksi |
| 1 mmHg | ksi |
| 2 mmHg | ksi |
| 3 mmHg | ksi |
| 4 mmHg | ksi |
| 5 mmHg | ksi |
| 6 mmHg | ksi |
| 7 mmHg | ksi |
| 8 mmHg | ksi |
| 9 mmHg | ksi |
| 10 mmHg | ksi |
| 20 mmHg | ksi |
| 30 mmHg | ksi |
| 40 mmHg | ksi |
| 50 mmHg | ksi |
| 100 mmHg | ksi |
| 1000 mmHg | ksi |
| 10000 mmHg | ksi |
For all Pressure converters, choose units using the From/To dropdowns above.
A millimeter of mercury (mmHg) is a manometric unit of pressure.
It was historically defined as the pressure generated by a column of mercury exactly one millimeter high.
Today, it is most famous as the unit used in medicine for measuring blood pressure. It is also commonly used in meteorology, aviation, and physics to measure atmospheric pressure or vacuum pressure.
The mmHg unit originates from the invention of the barometer by Evangelista Torricelli in 1643.
Torricelli's device measured atmospheric pressure by seeing how high it could support a column of mercury in a tube.
Standard atmospheric pressure was found to support a column approximately 760 mm high, which established 760 mmHg as a standard reference point.
The most well-known application of mmHg is in medicine.
Blood Pressure: Readings are given as two numbers: systolic pressure (when the heart beats) over diastolic pressure (when the heart rests), such as 120/80 mmHg. This is a critical vital sign for human health.
Meteorology: Used for reporting barometric (atmospheric) pressure, which helps in weather forecasting.
Physics & Engineering: Used for measuring vacuum pressures and other low-pressure systems where precision is needed.
While mmHg is common, other pressure units are standard in different fields. Here are the most common conversions:
A kilopound per square inch (ksi) is a unit of pressure and stress used in the Imperial and US customary systems of measurement.
It represents a force of one thousand pounds-force applied to an area of one square inch.
A kilopound per square inch (ksi) is a scaled unit directly related to the more common pound per square inch (psi). The prefix "kilo-" signifies one thousand.
Here are the most common conversions:
The conversion to megapascals (MPa) is essential for converting measurements to the SI (metric) system.
In materials science and structural engineering, ksi is a primary unit for quantifying the mechanical properties and material strength of a substance.
It is commonly used to express:
For example, the strength of high-performance materials like structural steel and aluminum alloys is frequently specified in ksi.
This provides engineers with the critical data needed for safe and reliable design.
While the metric system's megapascal (MPa) is the international standard, ksi remains prevalent in American engineering, particularly in the aerospace, automotive, and construction industries.