Select a category and enter your values below
To convert from millimeter of mercury (mmHg) to kilopound per square inch (ksi), use the following formula:
kilopound per square inch (ksi)
= 0.133322 × 0.00014503768078× millimeter of mercury (mmHg)
= 0.00001933671367695116× millimeter of mercury (mmHg)
With 0.00014503768078 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:
5 × 0.00001933671367695116 = 0.0000966835683847558
Therefore, 5 millimeter of mercury (mmHg) is equal to 0.0000966835683847558 kilopound per square inch (ksi).
How many millimeters of mercury are in one kilopound per square inch? One kilopound per square inch (ksi) contains 51715.095786517900835 millimeters of mercury (mmHg) — the inverse of the factor above. Multiplying by 0.00001933671367695116 takes you from millimeters of mercury to kilopound per square inch; multiplying by 51715.095786517900835 brings you back.
Put in words: one millimeter of mercury equals 0.00001933671367695116 kilopound per square inch, so the millimeter of mercury is the smaller unit of this pair. Converting between them never changes the amount of pressure being measured — only the size of the unit you count it in.
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.
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 | 1.933671367695116× 10-11 ksi |
| 0.001 mmHg | 1.933671367695116× 10-8 ksi |
| 0.1 mmHg | 0.000001933671367695116 ksi |
| 1 mmHg | 0.00001933671367695116 ksi |
| 2 mmHg | 0.00003867342735390232 ksi |
| 3 mmHg | 0.00005801014103085348 ksi |
| 4 mmHg | 0.00007734685470780464 ksi |
| 5 mmHg | 0.0000966835683847558 ksi |
| 6 mmHg | 0.00011602028206170696 ksi |
| 7 mmHg | 0.00013535699573865812 ksi |
| 8 mmHg | 0.00015469370941560928 ksi |
| 9 mmHg | 0.00017403042309256044 ksi |
| 10 mmHg | 0.0001933671367695116 ksi |
| 20 mmHg | 0.0003867342735390232 ksi |
| 30 mmHg | 0.0005801014103085348 ksi |
| 40 mmHg | 0.0007734685470780464 ksi |
| 50 mmHg | 0.000966835683847558 ksi |
| 100 mmHg | 0.001933671367695116 ksi |
| 1000 mmHg | 0.01933671367695116 ksi |
| 10000 mmHg | 0.1933671367695116 ksi |
For all Pressure converters, choose units using the From/To dropdowns above.