🩺 mmHg to kPa Converter
Instantly convert pressure from Millimeters of Mercury (mmHg) to Kilopascals (kPa). 1 mmHg is exactly 0.133322 kPa. Perfect for blood pressure measurements, medical applications, and scientific calculations.
What Is mmHg?
mmHg (millimeters of mercury) is a unit of pressure defined as the pressure exerted by a column of mercury exactly 1 millimeter high at 0°C under standard gravity. It is commonly used in medicine for:
- Blood pressure measurements — expressed as systolic/diastolic in mmHg.
- Intraocular pressure — eye pressure measurements.
- Cerebrospinal fluid pressure — neurological measurements.
- Central venous pressure — cardiovascular monitoring.
The unit is equivalent to the Torr, named after Evangelista Torricelli, who invented the mercury barometer in 1644.
What Is kPa?
The kilopascal (kPa) is a unit of pressure in the International System of Units (SI), equal to 1,000 pascals (Pa). One pascal is defined as one newton per square meter. kPa is commonly used in:
- Scientific research — physics, chemistry, and engineering.
- Meteorology — atmospheric pressure measurements.
- Industrial applications — hydraulics, pneumatics, and pressure vessels.
- Medical devices — many modern digital blood pressure monitors display readings in kPa.
How to Convert mmHg to kPa
The formula to convert mmHg to kPa is:
kPa = mmHg × 0.133322
or kPa = mmHg ÷ 7.50062
For example, to convert 120 mmHg (normal systolic blood pressure) to kPa:
kPa = 120 × 0.133322
kPa = 15.9986 kPa
To convert 80 mmHg (normal diastolic blood pressure) to kPa:
kPa = 80 × 0.133322
kPa = 10.6658 kPa
Why Use This Converter?
- Instant results: Get accurate mmHg to kPa conversions in real-time.
- Step-by-step breakdown: See exactly how the conversion is calculated.
- Common reference table: Quickly check pressure values from 10 mmHg to 760 mmHg.
- Free & private: No registration, no data storage — all calculations are done in your browser.
❓ mmHg to kPa FAQ
What is the formula to convert mmHg to kPa?
The formula is kPa = mmHg × 0.133322. Alternatively, you can use kPa = mmHg ÷ 7.50062.
How many kPa is 1 mmHg?
1 mmHg is equal to 0.133322 kPa.
How many mmHg is 1 kPa?
1 kPa is equal to 7.50062 mmHg.
What is the difference between mmHg and kPa?
mmHg (millimeters of mercury) is a traditional pressure unit commonly used in medicine for blood pressure measurements. kPa (kilopascal) is the SI unit for pressure used in scientific and engineering applications worldwide.
What is normal blood pressure in kPa?
Normal blood pressure is approximately 120/80 mmHg, which is equivalent to 16.0/10.7 kPa.
What is standard atmospheric pressure in mmHg and kPa?
Standard atmospheric pressure at sea level is 760 mmHg or 101.325 kPa.
How accurate is this converter?
This converter uses the exact conversion factor 0.133322 for high accuracy. You can adjust the decimal precision to suit your needs.
Is this converter free?
Yes, this converter is completely free to use. No registration or personal data storage is required.
Where is mmHg commonly used?
mmHg is commonly used in medical and clinical settings for blood pressure measurements, as well as in barometry and vacuum technology.
Where is kPa commonly used?
kPa is commonly used in scientific research, engineering, meteorology, and industrial applications worldwide.