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Convert millibar to technical atmosphere

Here you can quickly calculate how many technical atmosphere fit in one millibar.
  • 1 mbar = 0.00102 at
  • 1 at = 980.665 mbar

Millibar to technical atmosphere conversion table

millibar technical atmosphere
1 0.00102
2 0.002039
5 0.005099
10 0.010197
20 0.020394
50 0.050986
100 0.101972

Millibar to technical atmosphere formula

To convert millibar to technical atmosphere, multiply by 0.00102.

1 mbar = 0.00102 at
Example: 1 millibar = 0.00102 technical atmosphere

Common pressure conversion mistakes

  • One atmosphere is not exactly one bar: 1 atm = 1.01325 bar = 101.325 kPa. There is also the technical atmosphere (1 kgf/cm²) at about 0.981 bar. The ~1% differences rarely matter day to day, but engineering and diving calculations need the right unit.
  • Blood pressure uses mmHg (120/80) and weather reports use hPa (around 1,013), different units that must not be mixed: 760 mmHg = 1,013.25 hPa. One mmHg is about 1.33 hPa.
  • Hectopascals and millibars are exactly the same size: 1 hPa = 1 mbar. A chart showing 1,013 mbar and one showing 1,013 hPa agree perfectly, no conversion needed. Meteorology simply renamed the unit.

Quick millibar and technical atmosphere conversion quiz

Score: 0

33 technical atmosphere equals 1.94e+4 millibar.

Correct answer: 33 technical atmosphere = 3.24e+4 millibar.

2.4 millibar equals 0.00245 technical atmosphere.

Correct answer: 2.4 millibar = 0.00245 technical atmosphere.

189 millibar equals 0.0964 technical atmosphere.

Correct answer: 189 millibar = 0.193 technical atmosphere.

241 millibar equals 0.246 technical atmosphere.

Correct answer: 241 millibar = 0.246 technical atmosphere.

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