Pascals to Inches of Mercury
Convert pascals to inches of mercury instantly. 1 Pa = 0.0002952998 inHg. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert pascals to inches of mercury
To convert pascals to inches of mercury, divide by 3386.389 (multiply by 0.0002952998). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
inHg = Pa × 0.0002952998
Pascals to Inches of Mercury conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Pascals | Inches of Mercury |
|---|---|
| 1 Pa | 0.0002953 inHg |
| 2 Pa | 0.0005906 inHg |
| 3 Pa | 0.0008859 inHg |
| 5 Pa | 0.001476 inHg |
| 10 Pa | 0.002953 inHg |
| 20 Pa | 0.005906 inHg |
| 25 Pa | 0.007382 inHg |
| 50 Pa | 0.014765 inHg |
| 100 Pa | 0.02953 inHg |
| 500 Pa | 0.14765 inHg |
| 1,000 Pa | 0.2953 inHg |
What is a pascal?
The SI unit of pressure: one newton per square metre.
What is a inches of mercury?
The aviation altimeter unit: 29.92 inHg is standard sea-level pressure.
The formula
inHg = Pa × 0.0002952998
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Pascals to Inches of Mercury
- Type the number of pascals you want to convert.
- Read the result in inches of mercury straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked inches of mercury to pascals page.
Pascals to Inches of Mercury — frequently asked questions
How many inches of mercury are in a pascal?
One pascal equals 0.0002952998 inHg. inHg = Pa × 0.0002952998
What is the formula to convert pascals to inches of mercury?
The formula is inHg = Pa × 0.0002952998. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert inches of mercury back to pascals?
Divide instead of multiplying: one inches of mercury is 3386.389 Pa. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this pascals to inches of mercury free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the pascals to inches of mercury.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error