atm to mmHg converter
1 standard atmosphere equals 760 millimeters of mercury. Conversions use mmHg = atm × 760
atm → 760 mmHg
mmHg = atm × 760
Converter
Worked examples
- 1 atm = 760 mmHg
- 2 atm = 1,520 mmHg
- 5 atm = 3,800 mmHg
- 10 atm = 7,600 mmHg
- 100 atm = 75,999.99 mmHg
standard atmospheres to millimeters of mercury conversion table
| atm | mmHg | Arithmetic |
|---|---|---|
| 1 atm | 760 mmHg | × 760 |
| 2 atm | 1,520 mmHg | × 760 |
| 3 atm | 2,280 mmHg | × 760 |
| 4 atm | 3,040 mmHg | × 760 |
| 5 atm | 3,800 mmHg | × 760 |
| 6 atm | 4,560 mmHg | × 760 |
| 8 atm | 6,080 mmHg | × 760 |
| 10 atm | 7,600 mmHg | × 760 |
| 12 atm | 9,120 mmHg | × 760 |
| 15 atm | 11,400 mmHg | × 760 |
| 20 atm | 15,200 mmHg | × 760 |
| 25 atm | 19,000 mmHg | × 760 |
| 30 atm | 22,800 mmHg | × 760 |
| 40 atm | 30,400 mmHg | × 760 |
| 50 atm | 37,999.99 mmHg | × 760 |
| 60 atm | 45,599.99 mmHg | × 760 |
| 70 atm | 53,199.99 mmHg | × 760 |
| 80 atm | 60,799.99 mmHg | × 760 |
| 90 atm | 68,399.99 mmHg | × 760 |
| 100 atm | 75,999.99 mmHg | × 760 |
How to convert atm to mmHg
- Take your value in standard atmospheres.
- Multiply by 760
- That is your answer in millimeters of mercury — no rounding needed until you choose a display precision.
Related conversions
mmHg to atmkPa to mmHgbar to mmHgpsi to mmHgatm to kPaatm to baratm to psiatm to inHgatm to hPaall pressure units
Questions
How many millimeters of mercury in 1 standard atmosphere?
Exactly 760 mmHg. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert atm to mmHg?
Multiply the standard atmospheres figure by 760 — or use the converter above, which updates as you type.
Is atm to mmHg the same as mmHg to atm?
No — they are inverses. One atm is 760 mmHg, while one mmHg is 0.0013157897 atm.
What is 1 atm in mmHg?
1 atm = 760 mmHg (see the value page for the full arithmetic).