How to convert mmHg to pascals
To convert mmHg to pascals, multiply by 133.322387415. Pressure conversions are used for tire inflation, weather, scuba diving, hydraulics and medical devices.
mmHg to Pascal conversion table
| mmHg (mmHg) | Pascal (Pa) |
|---|---|
| 0.1 mmHg | 13.3322387415 Pa |
| 0.5 mmHg | 66.6611937075 Pa |
| 1 mmHg | 133.322387415 Pa |
| 2 mmHg | 266.64477483 Pa |
| 3 mmHg | 399.967162245 Pa |
| 4 mmHg | 533.28954966 Pa |
| 5 mmHg | 666.611937075 Pa |
| 10 mmHg | 1,333.22387415 Pa |
| 20 mmHg | 2,666.4477483 Pa |
| 25 mmHg | 3,333.05968538 Pa |
| 50 mmHg | 6,666.11937075 Pa |
| 100 mmHg | 13,332.2387415 Pa |
| 500 mmHg | 66,661.1937075 Pa |
| 1,000 mmHg | 133,322.387415 Pa |
About the units
mmHg (mmHg)
Millimeters of mercury are used for blood pressure and barometric readings (1 mmHg ≈ 133.322 Pa).
Pascal (Pa)
The pascal is the SI unit of pressure, one newton per square meter.
How to use this converter
- Type the number of mmHg (mmHg) in the input box.
- The result in pascals appears instantly — no button needed.
- See the same value in every other pressure unit just below.
- Use “Swap units” to convert pascals back to mmHg.
When you’ll use the mmhg to pascal conversion
Converting mmhg to pascals comes up more often than you might expect — for example when checking blood pressure units, reading weather barometer values, or inflating tires to the right pressure. Type your number once and you get the exact answer plus every related unit, so you don’t need to convert twice.
💡 For a quick estimate in your head, multiply by about 130 (the exact factor is 133.322387415).
Watch out for these mix-ups
- Gauge pressure ignores atmospheric pressure; absolute pressure includes it.
- Mixing psi and bar on tire labels — 2.2 bar is about 32 psi.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many pascals are in one mmhg?
One mmhg equals 133.322387415 pascals. 133.322387415 is the exact factor used by this converter.
How do I convert mmHg to pascals?
Multiply the value in mmHg by 133.322387415. To go the other way, multiply pascals by 0.00750061575846.
What is 10 mmHg in Pa?
10 mmHg = 1,333.22387415 Pa. Also, 5 mmHg = 666.611937075 Pa and 100 mmHg = 13,332.2387415 Pa.
What is the difference between a mmhg and a pascal?
Millimeters of mercury are used for blood pressure and barometric readings (1 mmHg ≈ 133.322 Pa). The pascal is the SI unit of pressure, one newton per square meter.
Is this tool free and private?
Yes — the mmHg to Pascal is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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