atm to mmHg Converter - Standard Atmosphere to Millimeters of Mercury

Standard Atmosphere (atm) to Millimeters of Mercury (mmHg)

Direct answer

1 atm = 760.002100179 mmHg

mmHg = atm × 760.002100179

Converter

Input

atm

Result

760.002100179mmHg

mmHg = atm × 760.002100179

atm = mmHg × 0.001315785838

Example: 10 atm = 10 × 760.002100179 = 7,600.02100179 mmHg.

Express both atm and mmHg in the same base unit Pa (pascal), then cancel the shared base unit.

1
Rewrite atm in the base unit
$1 atm = 101, 325 Pa$
2
Rewrite mmHg in the base unit
$1 mmHg = 133.322 Pa$
3
Forward conversion
$1 atm = \frac{101 , 325 Pa}{133.322 Pa} \times 1 mmHg = \frac{101 , 325}{133.322} mmHg = 760.002100179 mmHg$
4
Reverse conversion
$1 mmHg = \frac{133.322 Pa}{101 , 325 Pa} \times 1 atm = \frac{133.322}{101 , 325} atm = 0.001315785838 atm$

A guarded explanation for this pair page covering definition, principle, assumptions, and cautions.

Guarded output

AI text is for interpretation only. The page calculator remains the source of truth for numeric results.

1 atm = 760.002100179 mmHg.

10 atm = 7,600.02100179 mmHg.

100 atm = 76,000.2100179 mmHg.

Use mmHg = atm × 760.002100179.

1 mmHg = 0.001315785838 atm.

Use the conversion factor and round the result to the precision required by your calculation.