Atmospheres to inHg Converter
Enter a pressure in atmospheres and get the inches of mercury (inHg) equivalent instantly, with reverse inHg-to-atm conversion included.
Converter
Reverse: inHg to atmospheres
Reference Table
Atmospheres (atm)
Inches of Hg (inHg)
0.1 atm
2.9921
0.5 atm
14.961
1 atm
29.921
1.5 atm
44.882
2 atm
59.843
3 atm
89.764
5 atm
149.607
10 atm
299.213
15 atm
448.820
20 atm
598.426
50 atm
1,496.066
100 atm
2,992.131
Summary
Enter a pressure in atmospheres and get the inches of mercury (inHg) equivalent instantly, with reverse inHg-to-atm conversion included.
How it works
- Enter the pressure value in atmospheres (atm) in the top input field.
- The inHg result appears instantly — no button press needed.
- Use the reverse field to convert inHg back to atmospheres.
- Click "Copy" next to any result to copy the value to your clipboard.
- Check the reference table for common atm-to-inHg values at a glance.
Use cases
- Read aviation altimeter settings expressed in inHg when you have data in atm.
- Convert barometric pressure readings from atm to inHg for US weather station reports.
- Translate atmospheric pressure data from scientific instruments (atm) to US METAR format (inHg).
- Check sea-level pressure standards when comparing international and US aviation charts.
- Convert lab barometer readings from atm to inHg for US-format data logs.
- Verify pressure thresholds in HVAC systems that mix atm and inHg specs.
Frequently Asked Questions
Last updated: 2026-07-01 ·
Reviewed by Nham Vu