Inch of Mercury to Atmosphere Converter
EngineeringPascals, bar, psi and more.
How to convert Inch of Mercury to Atmosphere
Multiply the inch of mercury value by 0.0334211: 1 inHg = 0.0334211 atm. Going the other way, 1 atm = 29.9212 inHg, so divide by 0.0334211 or use the Atmosphere to Inch of Mercury converter.
About these units
Inch of Mercury (inHg)
An inch of mercury is about 3,386 pascals. US weather reports and aircraft altimeters give barometric pressure in inHg, typically near 29.92.
Atmosphere (atm)
A standard atmosphere is defined as exactly 101,325 pascals, roughly the average air pressure at sea level. It is about 14.7 psi or 1.013 bar.
Inch of Mercury to Atmosphere conversion table
| Inch of Mercury (inHg) | Atmosphere (atm) |
|---|---|
| 1 inHg | 0.0334211 atm |
| 2 inHg | 0.0668421 atm |
| 3 inHg | 0.100263 atm |
| 4 inHg | 0.133684 atm |
| 5 inHg | 0.167105 atm |
| 10 inHg | 0.334211 atm |
| 20 inHg | 0.668421 atm |
| 25 inHg | 0.835527 atm |
| 50 inHg | 1.67105 atm |
| 100 inHg | 3.34211 atm |
| 500 inHg | 16.7105 atm |
| 1,000 inHg | 33.4211 atm |
More inch of mercury conversions
- Inch of Mercury to Psi1 inHg = 0.491154 psi
- Inch of Mercury to Ksi1 inHg = 0.000491154 ksi
- Inch of Mercury to Inch of Water1 inHg = 13.5951 inH₂O
- Inch of Mercury to Foot of Water1 inHg = 1.13292 ftH₂O
- Inch of Mercury to Pascal1 inHg = 3,386.39 Pa
- Inch of Mercury to Kgf per Sq Cm1 inHg = 0.0345316 kgf/cm²
- Inch of Mercury to Exapascal1 inHg = 3.3864e-15 EPa
See every unit on the Pressure Converter.