Pascals to mmHg Converter
Common Conversions
| Pa | mmHg |
|---|---|
| 10 | 0.075 |
| 100 | 0.75 |
| 133.322 | 1 |
| 1000 | 7.501 |
| 5000 | 37.503 |
| 10000 | 75.006 |
| 50000 | 375.031 |
| 100000 | 750.062 |
| 101325 | 760 |
| 200000 | 1500.124 |
| 500000 | 3750.31 |
Why this conversion matters in chemistry
Tonometry is the case where this gets clinical fast. Newer intraocular-pressure devices log in pascals under the hood while the ophthalmologist still reads mmHg on the dashboard — Goldmann reference units. A 2000 Pa reading equals 15.0 mmHg, which sits right at the upper normal boundary; that's where a single decimal place in the conversion drives the call to either re-measure or open a glaucoma workup. The factor 0.0075006 traces back to 1 mmHg = 133.322 Pa, itself the product of mercury's density and standard gravity acting over one millimeter.
Formula
Worked Examples
Standard atmospheric pressure expressed in both unit systems.
Exactly one mmHg in pascals — the conversion anchor in reverse.
Vapor pressure of water at 25 °C — the value behind humid-air calculations.
Exactly 1 bar in mmHg — the IUPAC reference pressure.