Inches of Mercury to Pascals Converter
1 inch of mercury = 3,386.38896 pascals
1 inch of mercury equals 3,386.39 pascals
How to convert inches of mercury to pascals
Unit conversion preserves the pressure reference. Gauge pressure and absolute pressure are different readings; changing between them also needs the ambient pressure. Mercury and water-column units use the conventions stated in their unit notes.
Pa = inHg × 3386.38896One inch of mercury is 3386.38896 pascals, so a single multiplication converts any value.
33,863.9 Pa ≈ 10 × 3386.38896Inches of mercury to pascals conversion table
Common values in inches of mercury, converted to pascals.
| Inches of mercury (inHg) | Pascals (Pa) |
|---|---|
| 1 | 3,386.389 |
| 2 | 6,772.7779 |
| 3 | 10,159.167 |
| 4 | 13,545.556 |
| 5 | 16,931.945 |
| 10 | 33,863.89 |
| 20 | 67,727.779 |
| 25 | 84,659.724 |
| 50 | 169,319.45 |
| 100 | 338,638.9 |
| 250 | 846,597.24 |
| 500 | 1,693,194.5 |
| 1,000 | 3,386,389 |
About these units
inch of mercuryinHg
Exactly 25.4 mmHg. The US aviation and weather-report pressure unit.
pascalPa
The SI derived unit of pressure: one newton per square metre.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.