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Convert millimeter of mercury to technical atmosphere

Here you can quickly calculate how many technical atmosphere fit in one millimeter of mercury.
  • 1 mmHg = 0.00136 at
  • 1 at = 735.559135 mmHg

Millimeter of mercury to technical atmosphere conversion table

millimeter of mercury technical atmosphere
1 0.00136
2 0.002719
5 0.006798
10 0.013595
20 0.02719
50 0.067976
100 0.135951

Millimeter of mercury to technical atmosphere formula

To convert millimeter of mercury to technical atmosphere, multiply by 0.00136.

1 mmHg = 0.00136 at
Example: 1 millimeter of mercury = 0.00136 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.

Quick millimeter of mercury and technical atmosphere conversion quiz

Score: 0

13.8 technical atmosphere equals 6.09e+3 millimeter of mercury.

Correct answer: 13.8 technical atmosphere = 1.02e+4 millimeter of mercury.

3 millimeter of mercury equals 0.00408 technical atmosphere.

Correct answer: 3 millimeter of mercury = 0.00408 technical atmosphere.

20.4 technical atmosphere equals 1.5e+4 millimeter of mercury.

Correct answer: 20.4 technical atmosphere = 1.5e+4 millimeter of mercury.

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