100 PSI to inches of mercury
100 psi = 203.6 inHg. Change the amount below, or read the formula and the reference table further down.
100 PSI equals
inches of mercury
1 psi = 2.036021 inHg
The formula
PSI and inches of mercury both measure pressure from the same zero, so a single multiplier does the job.
inHg = psi × 2.03602068
Going the other way? Convert inches of mercury to PSI.
PSI to inches of mercury table
Values either side of 100 psi.
| PSI (psi) | Inches of mercury (inHg) |
|---|---|
| 0 | 0 |
| 10 | 20.3602 |
| 20 | 40.7204 |
| 30 | 61.0806 |
| 40 | 81.4408 |
| 50 | 101.8 |
| 60 | 122.16 |
| 70 | 142.52 |
| 80 | 162.88 |
| 90 | 183.24 |
| 100 | 203.6 |
| 110 | 223.96 |
| 120 | 244.32 |
| 130 | 264.68 |
| 140 | 285.04 |
| 150 | 305.4 |
| 160 | 325.76 |
| 170 | 346.12 |
| 180 | 366.48 |
| 190 | 386.84 |
| 200 | 407.2 |
Questions people ask
- How many inches of mercury are in a PSI?
- One PSI equals 2.03602068 inches of mercury.
- How do I convert PSI to inches of mercury by hand?
- Multiply the number of PSI by 2.03602068. For a rough check, 2 is close enough for most everyday use.
- What is 100 PSI in inches of mercury?
- 100 PSI is 203.6 inches of mercury.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.