Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 mmHg | 0.000133322 kPa | |
| 0.01 mmHg | 0.00133322 kPa | |
| 0.1 mmHg | 0.0133322 kPa | |
| 1 mmHg | 0.133322 kPa | |
| 5 mmHg | 0.66661 kPa | |
| 10 mmHg | 1.33322 kPa | |
| 50 mmHg | 6.6661 kPa | |
| 100 mmHg | 13.3322 kPa | |
| 1000 mmHg | 133.322 kPa |
Formula: Kilopascal = mmHg × 0.1333
Multiply any mmhg value by 0.1333 to get kilopascal.
Reverse: mmHg = Kilopascal × 7.501
Common mmhg values — factor: 1 mmHg = 0.1333 kPa
| mmHg (mmHg) | Kilopascal (kPa) | Context |
|---|---|---|
| 1 mmHg | 0.1333 kPa | Very low / ophthalmic |
| 5 mmHg | 0.6666 kPa | Low IOP |
| 10 mmHg | 1.333 kPa | Diastolic minimum |
| 20 mmHg | 2.666 kPa | Low BP diastolic |
| 40 mmHg | 5.333 kPa | Low BP range |
| 60 mmHg | 7.999 kPa | Hypotensive |
| 80 mmHg | 10.67 kPa | Normal diastolic |
| 100 mmHg | 13.33 kPa | Elevated diastolic |
| 120 mmHg | 16 kPa | Normal systolic |
| 200 mmHg | 26.66 kPa | High BP |
| 300 mmHg | 40 kPa | Hypertensive crisis |
| 760 mmHg | 101.3 kPa | 1 atm |
| 1,000 mmHg | 133.3 kPa | Above atm |
| 2,000 mmHg | 266.6 kPa | ~2.6 atm |
| 1e+04 mmHg | 1,333 kPa | ~13 atm |
mmHg × 0.1333 = kPa. Round to × 0.133.
Standard atmosphere anchor.
120/80 mmHg = 16.0/10.7 kPa.
Measures and interprets blood pressure in mmHg — the global clinical standard.
Measures intraocular pressure in mmHg to screen for and manage glaucoma.
Monitors arterial blood pressure and ventilator settings in mmHg.
Specifies rough vacuum ranges in torr/mmHg for laboratory systems.
Measures pulmonary artery pressure and oxygen partial pressure in mmHg.
Quantifies gas partial pressures (O₂, CO₂) in blood and tissues in mmHg.
Millimeters of mercury (mmHg) is the traditional medical pressure unit, defined as the pressure exerted by a 1 mm column of mercury at 0°C under standard gravity. It equals 133.322 Pa and is numerically identical to the torr.
Blood pressure is universally measured in mmHg worldwide: normal blood pressure is about 120/80 mmHg. Intraocular pressure (glaucoma screening) is measured in mmHg. Gas partial pressures in physiology are quoted in mmHg.
Interesting fact: The sphygmomanometer (blood pressure cuff) still uses mmHg more than 130 years after its invention, making mmHg one of the most clinically important pressure units despite not being an SI unit.
The kilopascal (kPa) equals 1,000 pascals and is the practical everyday pressure unit in metric countries. It is the standard unit for tire pressure, blood pressure, and weather maps in countries using SI.
Blood pressure in many countries is expressed in kPa (normal: ~16/10.7 kPa), though mmHg remains dominant in medicine. Car tire pressure is typically 200–250 kPa. Weather maps use hPa (= mbar) for atmospheric pressure.
Interesting fact: The 'bends' (decompression sickness) in scuba diving occurs when dissolved nitrogen forms bubbles as pressure drops — a drop of just a few kPa too quickly can be fatal.
Converting mmhg to kilopascal is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 mmHg = 0.6666 kPa and 10 mmHg = 1.333 kPa. For the reverse: 1 kPa = 7.501 mmHg. The exact factor is 1 mmHg = 0.1333 kPa.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.