Inches of mercury to standard atmospheres
1 inch of mercury in standard atmospheres
1 inHg = 0.033421 atm
atm = inHg × 0.03342106094
To convert inches of mercury to standard atmospheres, multiply by 0.03342106094. The table below gives the values people look up most often, and the converter works for any number.
Inches of mercury to standard atmospheres table
| Inches of mercury | Standard atmospheres |
|---|---|
| 1 inHg | 0.033421 |
| 2 inHg | 0.066842 |
| 3 inHg | 0.10026 |
| 4 inHg | 0.13368 |
| 5 inHg | 0.16711 |
| 10 inHg | 0.33421 |
| 15 inHg | 0.50132 |
| 20 inHg | 0.66842 |
| 25 inHg | 0.83553 |
| 30 inHg | 1.002632 |
| 40 inHg | 1.336842 |
| 50 inHg | 1.671053 |
| 75 inHg | 2.50658 |
| 100 inHg | 3.342106 |
| 250 inHg | 8.355265 |
| 500 inHg | 16.71053 |
| 1,000 inHg | 33.42106 |
How the conversion works
The relationship is atm = inHg × 0.03342106094. Both units measure pressure, so the conversion is a fixed factor that never changes.
Common questions
- How many standard atmospheres are in one inch of mercury?
- One inch of mercury equals 0.033421 standard atmospheres. atm = inHg × 0.03342106094.
- How do you convert inches of mercury to standard atmospheres?
- Use atm = inHg × 0.03342106094. So 10 inHg is 0.33421 atm.
- How many inches of mercury are in one standard atmosphere?
- One standard atmosphere equals 29.92125 inches of mercury, which is the reverse of the conversion above.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place