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Convert technical atmosphere to hectopascal

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

Technical atmosphere to hectopascal conversion table

technical atmosphere hectopascal
1 980.665
2 1961.33
5 4903.325
10 9806.65
20 19613.3
50 49033.25
100 98066.5

Technical atmosphere to hectopascal formula

To convert technical atmosphere to hectopascal, multiply by 980.665.

1 at = 980.665 hPa
Example: 1 technical atmosphere = 980.665 hectopascal

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 technical atmosphere and hectopascal conversion quiz

Score: 0

8.3 technical atmosphere equals 8.14e+3 hectopascal.

Correct answer: 8.3 technical atmosphere = 8.14e+3 hectopascal.

225 technical atmosphere equals 2.21e+5 hectopascal.

Correct answer: 225 technical atmosphere = 2.21e+5 hectopascal.

9 technical atmosphere equals 1.77e+4 hectopascal.

Correct answer: 9 technical atmosphere = 8.83e+3 hectopascal.

68 hectopascal equals 0.0693 technical atmosphere.

Correct answer: 68 hectopascal = 0.0693 technical atmosphere.

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