mmHg to Pascals Converter
Quick answer: To convert mmHg to pascals, multiply by 133.3224. For example, 10 mmHg is 1,333.224 Pa. One millimeter of mercury equals 133.3224 Pa.
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Use the mmHg to Pascals Converter
mmHg to Pascals formula and what each symbol means
Pa = mmHg × 133.3224
| Symbol | Meaning |
|---|---|
| mmHg | Millimeter of mercury |
| Pa | Pascal |
mmHg to Pascals examples
1 mmHg
1 mmHg × 133.3224 = 133.3224 Pa.
10 mmHg
10 mmHg × 133.3224 = 1,333.224 Pa.
100 mmHg
100 mmHg × 133.3224 = 13,332.24 Pa.
mmHg compared with Pascals
One mmHg is 133.3 times as large as one Pa, so your number gets bigger when you convert mmHg to pascals and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About mmHg and pascals
Millimeter of mercury (mmHg): Millimetre of mercury, about 133.322 pascals. Pascal (Pa): The SI unit of pressure, one newton per square metre.
Where mmHg to pascals conversions are used
Hydraulics, boilers and pneumatic tools list their limits in bar, psi or MPa. Tyre pressure is shown in psi, bar or kPa, depending on the vehicle and country.
How to calculate mmHg to Pascals step by step
- Enter the value in mmHg (the starting unit).
- Multiply by 133.3224, because 1 mmHg = 133.3224 Pa.
- The product is the value in Pa. To go back, divide by 133.3224 or multiply by 0.007500616.
Popular pressure conversions
How to read your mmHg to Pascals result
Quick estimate: multiply by about 133 to get pascals from mmHg; this is within 0.3% of the exact factor. The pascal is the SI unit, but gauges use bar, psi, atmospheres or mmHg depending on the field.
| MMHG | PASCALS |
|---|---|
| 1 | 133.3224 |
| 2 | 266.6448 |
| 5 | 666.6119 |
| 10 | 1,333.224 |
| 20 | 2,666.448 |
| 50 | 6,666.119 |
| 100 | 13,332.24 |
| 1,000 | 133,322.4 |
Pascals to mmHg: quick table
| PASCALS | MMHG |
|---|---|
| 1 | 0.007500616 |
| 5 | 0.03750308 |
| 10 | 0.07500616 |
| 25 | 0.1875154 |
| 50 | 0.3750308 |
| 100 | 0.7500616 |
| 250 | 1.875154 |
| 500 | 3.750308 |
Common mistakes when calculating mmHg to Pascals
- Reading mmHg and Torr as clearly different units: they differ by only about one part in seven million.
- Dividing when you should multiply: from mmHg to Pa multiply by 133.3224; from Pa to mmHg divide by 133.3224.
mmHg to Pascals FAQ
How many Pa are in 1 mmHg?
1 mmHg equals 133.3224 Pa.
How many mmHg are in 1 Pa?
1 Pa equals 0.007500616 mmHg.
Is 1 mmHg = 133.3224 Pa an exact conversion?
The factor is shown rounded to 7 significant figures (133.3224). The calculator above uses more digits.
What is a millimeter of mercury (mmHg)?
Millimetre of mercury, about 133.322 pascals.
How can I estimate mmHg to pascals in my head?
Quick estimate: multiply by about 133 to get pascals from mmHg; this is within 0.3% of the exact factor.
What is 0.5 mmHg in pascals?
0.5 mmHg = 66.66119 Pa (since 0.5 × 133.3224).
What is 25 mmHg in pascals?
25 mmHg = 3,333.06 Pa (since 25 × 133.3224).
What is 80 mmHg in pascals?
80 mmHg = 10,665.79 Pa (since 80 × 133.3224).
How many decimals should I keep when converting mmHg to Pa?
Match the precision of your original measurement. For example, 1,333.224 Pa rounds to 1,330 Pa at 3 significant figures; keep more digits only for engineering or scientific work.
More in Pressure converters
- Pascals to Bar Converter
- mmHg to Atmospheres Converter
- Pascals to kPa Converter
- kPa to PSI Converter
- kPa to Pascals Converter
- Pascals to PSI Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the SI derived units