Convert Atmospheres to Inches of Mercury
1 atmosphere = 29.921252 inches of mercury. Type any value below to convert in either direction — the calculation happens in your browser.
Atmospheres to Inches of Mercury formula
Multiply the number of atmospheres by 29.921252 to get inches of mercury.
inches of mercury = atmospheres × 29.921252To go the other way: divide the number of inches of mercury by 29.921252, or multiply by 0.03342106.
atmospheres = inches of mercury ÷ 29.921252Atmospheres to Inches of Mercury conversion table
| Atmospheres | Inches of Mercury |
|---|---|
| 1 atm | 29.921252 inHg |
| 2 atm | 59.842505 inHg |
| 3 atm | 89.763757 inHg |
| 4 atm | 119.68501 inHg |
| 5 atm | 149.606262 inHg |
| 6 atm | 179.527514 inHg |
| 7 atm | 209.448767 inHg |
| 8 atm | 239.370019 inHg |
| 9 atm | 269.291272 inHg |
| 10 atm | 299.212524 inHg |
| 15 atm | 448.818786 inHg |
| 20 atm | 598.425048 inHg |
| 25 atm | 748.03131 inHg |
| 30 atm | 897.637572 inHg |
| 40 atm | 1,196.85 inHg |
| 50 atm | 1,496.063 inHg |
| 75 atm | 2,244.094 inHg |
| 100 atm | 2,992.125 inHg |
| 250 atm | 7,480.313 inHg |
| 500 atm | 14,960.63 inHg |
| 1,000 atm | 29,921.25 inHg |
Inches of Mercury to Atmospheres conversion table
| Inches of Mercury | Atmospheres |
|---|---|
| 1 inHg | 0.03342106 atm |
| 2 inHg | 0.06684212 atm |
| 3 inHg | 0.1002632 atm |
| 4 inHg | 0.1336842 atm |
| 5 inHg | 0.1671053 atm |
| 6 inHg | 0.2005264 atm |
| 7 inHg | 0.2339474 atm |
| 8 inHg | 0.2673685 atm |
| 9 inHg | 0.3007895 atm |
| 10 inHg | 0.3342106 atm |
About the atmosphere
A standard atmosphere is exactly 101,325 pascals, the reference sea-level pressure.
About the inch of mercury
Inches of mercury are used in US aviation altimeter settings and barometric reports.
Frequently asked questions
How many inches of mercury are in a atmosphere?
There are 29.921252 inches of mercury in one atmosphere.
How many atmospheres are in a inch of mercury?
There are 0.03342106 atmospheres in one inch of mercury.
Is this conversion exact?
The ratio between the atmosphere and the inch of mercury is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 atmospheres in inches of mercury?
10 atmospheres equals 299.212524 inches of mercury.
Related pressure conversions
- Pascals to Inches of Mercury
- Kilopascals to Inches of Mercury
- Bars to Inches of Mercury
- Pounds Per Square Inch to Inches of Mercury
- Atmospheres to Pascals
- Atmospheres to Kilopascals
- Atmospheres to Bars
- Atmospheres to Pounds Per Square Inch
- Atmospheres to Millimeters of Mercury
- Millimeters of Mercury to Inches of Mercury