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Pressure

Convert millimeters of mercury to kilopascals

1 mmHg=0.1333kPa

Use the converter below to change any millimeters of mercury value into kilopascals instantly — with formula, conversion table, and real-world examples.

0.13332

Conversion formula

Forward
kilopascals = millimeters of mercury × 0.1333
Reverse
millimeters of mercury = kilopascals × 7.50062

Example: 10 mmHg × 0.1333 = 1.33322 kPa.

About both units

From

Millimeter of Mercury

mmHg

The millimetre of mercury equals about 133.3 Pa — the pressure exerted by a 1 mm column of mercury at 0 °C under standard gravity. Traditionally and still used in medicine: blood pressure of 120/80 mmHg.

Real-world: Normal blood pressure: 120/80 mmHg. Atmospheric: 760 mmHg. Good vacuum: <1 mmHg.
Read full millimeter of mercury reference →
To

Kilopascal

kPa

The kilopascal equals 1000 pascals. Used for tyre pressures in many metric countries, engineering pressures and weather reports. 100 kPa ≈ 1 bar ≈ atmospheric pressure.

Real-world: Tyre pressure: 220–280 kPa. Atmospheric: 101 kPa. HVAC duct static: 0.1–0.3 kPa.
Read full kilopascal reference →

Millimeter of Mercury to Kilopascal conversion table

Common millimeters of mercury to kilopascals values for quick reference.

Millimeter of Mercury (mmHg)Kilopascal (kPa)
1 mmHg0.1333 kPa
5 mmHg0.6666 kPa
10 mmHg1.33322 kPa
25 mmHg3.33306 kPa
50 mmHg6.66612 kPa
100 mmHg13.3322 kPa
200 mmHg26.6645 kPa
500 mmHg66.6612 kPa
1,000 mmHg133.322 kPa
5,000 mmHg666.612 kPa

Tips & common mistakes

Quick tips

  • 1 mmHg ≈ 133.32 Pa ≈ 1 Torr.
  • 760 mmHg = 1 atm.
  • Blood-pressure cuffs display mmHg worldwide.

Avoid these

  • Confusing mmHg with mmH₂O (different unit, factor of 13.6).
  • Mixing mmHg with torr in precise vacuum physics — they differ by one part per million.
  • Writing blood pressure in kPa — use mmHg for medical continuity.

Frequently asked questions

How many kilopascals in a millimeter of mercury?
One millimeter of mercury equals 0.1333 kilopascals.
How do I convert millimeters of mercury to kilopascals?
Multiply the millimeter of mercury value by 0.1333 to get the equivalent in kilopascals.
What is 100 millimeters of mercury in kilopascals?
100 millimeters of mercury equals 13.3322 kilopascals.
Is a millimeter of mercury bigger than a kilopascal?
No. 1 millimeter of mercury equals 0.1333 kilopascals, so one millimeter of mercury is smaller.
How to convert millimeters of mercury to kilopascals without a calculator?
Multiply by 0.13 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

More from Millimeter of Mercury

mmHg → Pa
1 = 133.322 Pa
mmHg → MPa
1 = 0.0001333 MPa
mmHg → bar
1 = 0.001333 bar
mmHg → mbar
1 = 1.33322 mbar
mmHg → psi
1 = 0.01934 psi
mmHg → atm
1 = 0.001316 atm
mmHg → Torr
1 = 1 Torr
mmHg → inHg
1 = 0.03937 inHg

More to Kilopascal

Pa → kPa
1 = 0.001 kPa
MPa → kPa
1 = 1,000 kPa
bar → kPa
1 = 100 kPa
mbar → kPa
1 = 0.1 kPa
psi → kPa
1 = 6.89476 kPa
atm → kPa
1 = 101.325 kPa
Torr → kPa
1 = 0.1333 kPa
inHg → kPa
1 = 3.38639 kPa

Conversions in other categories

WeightKilogram → PoundLengthKilometer → MileTemperatureCelsius → FahrenheitVolumeLiter → US GallonAreaSquare Meter → Square FootSpeedKilometer per Hour → Mile per HourEnergyKilojoule → KilocaloriePowerKilowatt → Mechanical Horsepower