The millimeter of mercury is a pressure unit based on the height of a mercury column. It remains historically important in medicine and laboratory practice.
mmHg became established through mercury manometers and retained long-term use in blood pressure readings and vacuum-related references.
Measurement system: Non-SI historical engineering and medical unit. SI equivalent: 1 mmHg = 133.322387415 Pa.
Millimeter of Mercury facts
- Unit name
- Millimeter of Mercury
- Symbol
- mmHg
- Category
- Pressure
- Measurement system
- Non-SI historical engineering and medical unit
- SI equivalent
- 1 mmHg = 133.322387415 Pa
- Common uses
- Blood pressure readings, laboratory manometers and vacuum references
Definition of the millimeter of mercury
The millimeter of mercury is a pressure unit based on the height of a mercury column. It remains historically important in medicine and laboratory practice.
Measurement system and SI relationship
Non-SI historical engineering and medical unit
SI equivalent: 1 mmHg = 133.322387415 Pa
History of the millimeter of mercury
mmHg became established through mercury manometers and retained long-term use in blood pressure readings and vacuum-related references.
Where is the millimeter of mercury used?
Blood pressure readings, laboratory manometers and vacuum references