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Pressure

Convert torr to millibars

1 Torr=1.33322mbar

Use the converter below to change any torr value into millibars instantly — with formula, conversion table, and real-world examples.

1.333224

Conversion formula

Forward
millibars = torr × 1.33322
Reverse
torr = millibars × 0.7501

Example: 10 Torr × 1.33322 = 13.3322 mbar.

About both units

From

Torr

Torr

The torr equals 1/760 atm — approximately 133.32 Pa. Essentially equivalent to mmHg but defined slightly differently. Used in vacuum-system engineering and older physics.

Real-world: Low-vacuum: 760 to 25 torr. High-vacuum: 10⁻³ to 10⁻⁹ torr. Semiconductor fabrication: often below 10⁻⁶ torr.
Read full torr reference →
To

Millibar

mbar

The millibar equals 100 pascals or 1/1000 bar. It is the traditional unit for atmospheric pressure in meteorology (now called hectopascal, hPa, but numerically identical). Sea-level pressure averages 1013 mbar.

Real-world: Sea-level average: 1013 mbar. Deep low-pressure storm: below 980 mbar. Hurricane eye: below 920 mbar.
Read full millibar reference →

Torr to Millibar conversion table

Common torr to millibars values for quick reference.

Torr (Torr)Millibar (mbar)
1 Torr1.33322 mbar
5 Torr6.66612 mbar
10 Torr13.3322 mbar
25 Torr33.3306 mbar
50 Torr66.6612 mbar
100 Torr133.322 mbar
200 Torr266.645 mbar
500 Torr666.612 mbar
1,000 Torr1,333.22 mbar
5,000 Torr6,666.12 mbar

Tips & common mistakes

Quick tips

  • 1 Torr ≈ 1 mmHg (differ by ~1 ppm — negligible in practice).
  • 1 atm = 760 Torr exactly.
  • Named after Evangelista Torricelli, inventor of the barometer.

Avoid these

  • Assuming torr and mmHg are truly identical — they differ by ~10⁻⁷; only matters in metrology.
  • Using Torr in everyday context — obscure outside vacuum engineering.
  • Mixing Torr and mTorr without specification.

Frequently asked questions

How many millibars in a torr?
One torr equals 1.33322 millibars.
How do I convert torr to millibars?
Multiply the torr value by 1.33322 to get the equivalent in millibars.
What is 100 torr in millibars?
100 torr equals 133.322 millibars.
Is a torr bigger than a millibar?
Yes. 1 torr equals 1.33322 millibars, so one torr is larger.
How to convert torr to millibars without a calculator?
Multiply by 1.33 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

More from Torr

Torr → Pa
1 = 133.322 Pa
Torr → kPa
1 = 0.1333 kPa
Torr → MPa
1 = 0.0001333 MPa
Torr → bar
1 = 0.001333 bar
Torr → psi
1 = 0.01934 psi
Torr → atm
1 = 0.001316 atm
Torr → mmHg
1 = 1 mmHg
Torr → inHg
1 = 0.03937 inHg

More to Millibar

Pa → mbar
1 = 0.01 mbar
kPa → mbar
1 = 10 mbar
MPa → mbar
1 = 10,000 mbar
bar → mbar
1 = 1,000 mbar
psi → mbar
1 = 68.9476 mbar
atm → mbar
1 = 1,013.25 mbar
mmHg → mbar
1 = 1.33322 mbar
inHg → mbar
1 = 33.8639 mbar

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