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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

Formula to convert millibar to technical atmosphere

To convert millibar to technical atmosphere, multiply by 0.00102.

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

Common mistakes in pressure conversion

  • 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 to/from technical atmosphere conversion quiz

Score: 0

228 technical atmosphere equals 4.47e+5 millibar.

Correct answer: 228 technical atmosphere = 2.24e+5 millibar.

156 millibar equals 0.0954 technical atmosphere.

Correct answer: 156 millibar = 0.159 technical atmosphere.

37 millibar equals 0.0377 technical atmosphere.

Correct answer: 37 millibar = 0.0377 technical atmosphere.

6.5 technical atmosphere equals 9.56e+3 millibar.

Correct answer: 6.5 technical atmosphere = 6.37e+3 millibar.

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