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Pressure

Convert millimeters of mercury to bars

1 mmHg=0.001333bar

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

0.0013332

Conversion formula

Forward
bars = millimeters of mercury × 0.001333
Reverse
millimeters of mercury = bars × 750.062

Example: 10 mmHg × 0.001333 = 0.01333 bar.

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

Bar

bar

The bar equals 100,000 pascals — slightly less than one atmosphere (1.01325 bar). It is a convenient unit for everyday pressures: tyre pressures, diving depth, weather fronts. Common in European engineering.

Real-world: Car tyre: 2.0–2.5 bar. SCUBA at 10 m depth: 2 bar absolute. Fire hose: 5–7 bar.
Read full bar reference →

Millimeter of Mercury to Bar conversion table

Common millimeters of mercury to bars values for quick reference.

Millimeter of Mercury (mmHg)Bar (bar)
1 mmHg0.001333 bar
5 mmHg0.006666 bar
10 mmHg0.01333 bar
25 mmHg0.03333 bar
50 mmHg0.06666 bar
100 mmHg0.1333 bar
200 mmHg0.2666 bar
500 mmHg0.6666 bar
1,000 mmHg1.33322 bar
5,000 mmHg6.66612 bar

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 bars in a millimeter of mercury?
One millimeter of mercury equals 0.001333 bars.
How do I convert millimeters of mercury to bars?
Multiply the millimeter of mercury value by 0.001333 to get the equivalent in bars.
What is 100 millimeters of mercury in bars?
100 millimeters of mercury equals 0.1333 bars.
Is a millimeter of mercury bigger than a bar?
No. 1 millimeter of mercury equals 0.001333 bars, so one millimeter of mercury is smaller.
How to convert millimeters of mercury to bars without a calculator?
Multiply by 0 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 → kPa
1 = 0.1333 kPa
mmHg → MPa
1 = 0.0001333 MPa
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 Bar

Pa → bar
1 = 1.0000e-5 bar
kPa → bar
1 = 0.01 bar
MPa → bar
1 = 10 bar
mbar → bar
1 = 0.001 bar
psi → bar
1 = 0.06895 bar
atm → bar
1 = 1.01325 bar
Torr → bar
1 = 0.001333 bar
inHg → bar
1 = 0.03386 bar

Conversions in other categories

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