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To convert from kilopascal (kPa) to millimeter of mercury (mmHg), use the following formula:
Let's convert 5 kilopascal (kPa) to millimeter of mercury (mmHg).
Using the formula:
Therefore, 5 kilopascal (kPa) is equal to millimeter of mercury (mmHg).
Here are some quick reference conversions from kilopascal (kPa) to millimeter of mercury (mmHg):
| kilopascals | millimeters of mercury |
|---|---|
| 0.000001 kPa | mmHg |
| 0.001 kPa | mmHg |
| 0.1 kPa | mmHg |
| 1 kPa | mmHg |
| 2 kPa | mmHg |
| 3 kPa | mmHg |
| 4 kPa | mmHg |
| 5 kPa | mmHg |
| 6 kPa | mmHg |
| 7 kPa | mmHg |
| 8 kPa | mmHg |
| 9 kPa | mmHg |
| 10 kPa | mmHg |
| 20 kPa | mmHg |
| 30 kPa | mmHg |
| 40 kPa | mmHg |
| 50 kPa | mmHg |
| 100 kPa | mmHg |
| 1000 kPa | mmHg |
| 10000 kPa | mmHg |
For all Pressure converters, choose units using the From/To dropdowns above.
A kilopascal (kPa) is a metric unit of pressure that equals 1,000 pascals.
It is one of the most common units for measuring pressure worldwide, used in both scientific and everyday applications.
The base unit, the pascal (Pa), is named after the French polymath Blaise Pascal.
As part of the metric system (also known as the SI system), the kilopascal is widely used in scientific, engineering, and industrial fields due to its standardization and ease of calculation.
The kPa unit is used to measure pressure in many everyday and technical contexts. Common examples include:
For practical use, it's essential to understand how kPa converts to other common pressure units.
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: