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Pressure

Convert millimeters of mercury to pascals

1 mmHg=133.322Pa

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

133.3224

Conversion formula

Forward
pascals = millimeters of mercury × 133.322
Reverse
millimeters of mercury = pascals × 0.007501

Example: 10 mmHg × 133.322 = 1,333.22 Pa.

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

Pascal

Pa

The pascal is the SI unit of pressure — one newton per square metre. Named after Blaise Pascal. 1 Pa is a very small pressure; atmospheric pressure is about 101,325 Pa. Pressure readings in engineering are usually in kPa or MPa.

Real-world: Atmospheric pressure: 101,325 Pa. Conversation level: 0.001 Pa sound pressure. Truck tyre: 900,000 Pa.
Read full pascal reference →

Millimeter of Mercury to Pascal conversion table

Common millimeters of mercury to pascals values for quick reference.

Millimeter of Mercury (mmHg)Pascal (Pa)
1 mmHg133.322 Pa
5 mmHg666.612 Pa
10 mmHg1,333.22 Pa
25 mmHg3,333.06 Pa
50 mmHg6,666.12 Pa
100 mmHg13,332.24 Pa
200 mmHg26,664.48 Pa
500 mmHg66,661.19 Pa
1,000 mmHg133,322.39 Pa
5,000 mmHg666,611.94 Pa

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 pascals in a millimeter of mercury?
One millimeter of mercury equals 133.322 pascals.
How do I convert millimeters of mercury to pascals?
Multiply the millimeter of mercury value by 133.322 to get the equivalent in pascals.
What is 100 millimeters of mercury in pascals?
100 millimeters of mercury equals 13,332.24 pascals.
Is a millimeter of mercury bigger than a pascal?
Yes. 1 millimeter of mercury equals 133.322 pascals, so one millimeter of mercury is larger.
How to convert millimeters of mercury to pascals without a calculator?
Multiply by 133.32 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

More from Millimeter of Mercury

mmHg → kPa
1 = 0.1333 kPa
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 Pascal

kPa → Pa
1 = 1,000 Pa
MPa → Pa
1 = 1,000,000 Pa
bar → Pa
1 = 100,000 Pa
mbar → Pa
1 = 100 Pa
psi → Pa
1 = 6,894.76 Pa
atm → Pa
1 = 101,325 Pa
Torr → Pa
1 = 133.322 Pa
inHg → Pa
1 = 3,386.39 Pa

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