Atmosphere to Inch of Mercury Converter
Convert Atmospheres to Inches of Mercury
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How to Convert Atmospheres to Inches of Mercury
Converting atmospheres (atm) to inches of mercury (inHg) is a common conversion. One standard atmosphere is equal to approximately 29.9213 inches of mercury.
Formula
Inches of Mercury = Atmospheres × 29.9213
or
inHg = atm × 29.9213
Step-by-step process
- Take the measurement in atmospheres
- Multiply that number by 29.9213
- The result is the equivalent amount in inches of mercury
Examples
- 1 atm = 29.9213 inHg
- 0.1 atm = 2.99213 inHg
- 0.033421 atm = 1 inHg
When to Convert Atmospheres to Inches of Mercury
This conversion is commonly used in meteorology (barometric pressure), aviation, and medical applications (blood pressure) where inches of mercury is the preferred unit.
Common Atmospheres to Inches of Mercury Conversions
Here is a table of common atmosphere to inch of mercury conversions for quick reference:
| Atmospheres (atm) | Inches of Mercury (inHg) | Atmospheres (atm) | Inches of Mercury (inHg) |
|---|---|---|---|
| 1 | 29.9213 | 0.01 | 0.299213 |
| 10 | 299.213 | 0.001 | 0.0299213 |
| 100 | 2992.13 | 0.0001 | 0.00299213 |
| 1000 | 29921.3 | 0.00001 | 0.000299213 |
Frequently Asked Questions
How many inches of mercury are in an atmosphere?
There are approximately 29.9213 inches of mercury in one atmosphere.
Why is the conversion factor 29.9213?
One standard atmosphere is defined as 101,325 pascals, and one inch of mercury is 3,386.39 pascals. Therefore, one atmosphere is 101,325 / 3,386.39 = 29.9213 inches of mercury.