mmHg to Atmosphere Converter
Pressure · unit-converter
Convert mmHg to Atmosphere with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through pascal with fixed definitions (standard atmosphere = 101,325 Pa; torr and mmHg = atm/760; plus industrial/manometer units like kgf/cm², inHg, inH2O, and mmH2O).
About mmHg
Millimeters of mercury (mmHg) is common in medicine (e.g. blood pressure). Here it uses the same Pa per unit as torr (133.32236842105263 Pa).
About Atmosphere
The standard atmosphere (atm) is defined as exactly 101,325 Pa. It links legacy chemistry and physics problems to SI.
How to convert millimeter of mercury (mmhg) to atmosphere
1 mmhg equals 0.0013157894736842105 atmosphere in this tool (via pascal):
1 mmhg = (133.32236842105263 Pa ÷ 101325 Pa) atm = 0.0013157894736842105 atm
Each mmhg carries 133.32236842105263 Pa and each atmosphere 101325 Pa, so one mmhg equals 133.32236842105263 ÷ 101325 atm.
Let p(mmhg) be pressure in mmHg (mmhg), and p(atm) in Atmosphere (atm). Then:
p(atm) = p(mmhg) × (133.32236842105263 / 101325)
Equivalently, divide by how many mmhg fit into one atm (Pa per atm divided by Pa per mmhg):
p(atm) = p(mmhg) ÷ 760
Examples
Example #1: Convert 1 mmhg to atmosphere
1 mmhg = 1 mmhg × (133.32236842105263/101325) atm = 0.0013157895 atm
1 mmhg = 1 mmhg ÷ 760 = 0.0013157895 atm
1 mmhg × (133.32236842105263/101,325) = 0.001316 atm
Example #2: Convert 10 mmhg to atmosphere
10 mmhg = 10 mmhg × (133.32236842105263/101325) atm = 0.0131578947 atm
10 mmhg = 10 mmhg ÷ 760 = 0.0131578947 atm
10 mmhg × (133.32236842105263/101,325) = 0.013158 atm
Summary
To convert mmHg to Atmosphere, multiply the value in mmhg by (133.32236842105263 Pa per mmhg) / (101325 Pa per atm). Equivalently: value_atm = value_mmhg × (133.32236842105263 / 101325). Numerically, 1 mmhg equals 0.0013157894736842105 atm.
Relationship context
Both mmHg and Atmosphere are converted by fixed multiples of the pascal. Multiplying by (Pa per mmhg) ÷ (Pa per atm) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| mmHg (mmhg) | Atmosphere (atm) |
|---|---|
| 0.1 | 0.0001315789 |
| 1 | 0.0013157895 |
| 2 | 0.0026315789 |
| 3 | 0.0039473684 |
| 4 | 0.0052631579 |
| 5 | 0.0065789474 |
| 6 | 0.0078947368 |
| 7 | 0.0092105263 |
| 8 | 0.0105263158 |
| 9 | 0.0118421053 |
| mmHg (mmhg) | Atmosphere (atm) |
|---|---|
| 10 | 0.0131578947 |
| 20 | 0.0263157895 |
| 30 | 0.0394736842 |
| 40 | 0.0526315789 |
| 50 | 0.0657894737 |
| 60 | 0.0789473684 |
| 70 | 0.0921052632 |
| 80 | 0.1052631579 |
| 90 | 0.1184210526 |
| 100 | 0.1315789474 |