mmHg to Pascals
Convert mmhg to pascals instantly. 1 mmHg = 133.322387415 Pa. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert mmhg to pascals
To convert mmhg to pascals, multiply by 133.322387415. 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.
Pa = mmHg × 133.322387415
mmHg to Pascals conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| mmHg | Pascals |
|---|---|
| 1 mmHg | 133.322387 Pa |
| 2 mmHg | 266.644775 Pa |
| 3 mmHg | 399.967162 Pa |
| 5 mmHg | 666.611937 Pa |
| 10 mmHg | 1,333.22 Pa |
| 20 mmHg | 2,666.45 Pa |
| 25 mmHg | 3,333.06 Pa |
| 50 mmHg | 6,666.12 Pa |
| 100 mmHg | 13,332.24 Pa |
| 500 mmHg | 66,661.19 Pa |
| 1,000 mmHg | 133,322.39 Pa |
What is a mmhg?
Millimetres of mercury, still the clinical unit for blood pressure.
What is a pascal?
The SI unit of pressure: one newton per square metre.
The formula
Pa = mmHg × 133.322387415
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 mmHg to Pascals
- Type the number of mmhg you want to convert.
- Read the result in pascals 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 pascals to mmhg page.
mmHg to Pascals — frequently asked questions
How many pascals are in a mmhg?
One mmhg equals 133.322387415 Pa. Pa = mmHg × 133.322387415
What is the formula to convert mmhg to pascals?
The formula is Pa = mmHg × 133.322387415. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert pascals back to mmhg?
Divide instead of multiplying: one pascal is 0.0075006158 mmHg. 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 mmhg to pascals 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
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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