Convert Inch of Mercury to Atmosphere
1 inch of mercury = 0.033421061 atmospheres (inHg to atm).
The inch of mercury (inHg) and the atmosphere (atm) both measure pressure. A inch of mercury is smaller than a atmosphere — it takes 29.9213 of them to make a single atmosphere. Going the other way, one atmosphere is 29.9213 inches of mercury. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 inHg = 0.033421061 atm
How to convert Inches of Mercury to Atmospheres
Multiply the inch of mercury value by 0.0334211 to get atmospheres.
Example: 10 inches of mercury = 0.334211 atmospheres.
Inch of Mercury to Atmosphere Conversion Chart
| Inches of Mercury | Atmospheres |
|---|---|
| 1 inHg | 0.033421061 atm |
| 2 inHg | 0.066842122 atm |
| 3 inHg | 0.10026318 atm |
| 5 inHg | 0.1671053 atm |
| 10 inHg | 0.33421061 atm |
| 20 inHg | 0.66842122 atm |
| 25 inHg | 0.83552652 atm |
| 50 inHg | 1.671053 atm |
| 100 inHg | 3.3421061 atm |
| 1000 inHg | 33.421061 atm |
Frequently Asked Questions
- How many atmospheres are in a inch of mercury?
- There are 0.033421061 atmospheres in 1 inch of mercury.
- How do you convert inches of mercury to atmospheres?
- Multiply the inch of mercury value by 0.0334211 to get atmospheres.
- What is 5 inches of mercury in atmospheres?
- 5 inches of mercury equals 0.1671053 atmospheres.
- What is 100 inches of mercury in atmospheres?
- 100 inches of mercury equals 3.3421061 atmospheres.
- What is 1 atmosphere in inches of mercury?
- 1 atmosphere equals 29.921252 inches of mercury.
- Is this inch of mercury to atmosphere converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.