Millimeter mercury to Pascal Converter
Enter the value that you want to convert millimeter mercury (mmHg) to pascal (Pa) or pascal to millimeter mercury.Also written as MMHG to PA conversion.
1 millimeter mercury = 133.3220000 pascal
Formula: pascal = millimeter mercury value × 133.3220000
MMHG to PA — millimeter mercury to pascal
10 millimeter mercury = 1333.22000 pascal
Popular Pressure Converters:
Millimeter mercury vs Pascal
About the Millimeter mercury
Millimeter mercury (mmHg) is a unit of pressure measurement. 1 millimeter mercury is equal to 133.3220000 pascal.
About the Pascal
Pascal (Pa) is a unit of pressure measurement. 1 pascal is equal to 0.0075006 millimeter mercury.
Pressure Units Across Industries
Pressure measurements vary dramatically by industry. Meteorologists report in millibars or hectopascals, tire shops use PSI, scuba divers think in atmospheres or bar, vacuum engineers work in torr, and hydraulic systems specify in megapascals. A single industrial plant might encounter all these units across different equipment manuals, safety datasheets, and regulatory standards from different countries.
millimeter mercury to pascal metric conversion table
| 0.01 mmHg | = | 1.33322 Pa |
| 0.1 mmHg | = | 13.33220 Pa |
| 1 mmHg | = | 133.32200 Pa |
| 2 mmHg | = | 266.64400 Pa |
| 3 mmHg | = | 399.96600 Pa |
| 4 mmHg | = | 533.28800 Pa |
| 5 mmHg | = | 666.61000 Pa |
| 6 mmHg | = | 799.93200 Pa |
| 7 mmHg | = | 933.25400 Pa |
| 8 mmHg | = | 1066.57600 Pa |
| 9 mmHg | = | 1199.89800 Pa |
| 10 mmHg | = | 1333.22000 Pa |
| 11 mmHg | = | 1466.54200 Pa |
| 12 mmHg | = | 1599.86400 Pa |
| 13 mmHg | = | 1733.18600 Pa |
| 14 mmHg | = | 1866.50800 Pa |
| 15 mmHg | = | 1999.83000 Pa |
| 16 mmHg | = | 2133.15200 Pa |
| 17 mmHg | = | 2266.47400 Pa |
| 18 mmHg | = | 2399.79600 Pa |
| 19 mmHg | = | 2533.11800 Pa |
| 20 mmHg | = | 2666.44000 Pa |
| 30 mmHg | = | 3999.66000 Pa |
| 40 mmHg | = | 5332.88000 Pa |
| 50 mmHg | = | 6666.10000 Pa |
| 60 mmHg | = | 7999.32000 Pa |
| 70 mmHg | = | 9332.54000 Pa |
| 80 mmHg | = | 10665.76000 Pa |
| 90 mmHg | = | 11998.98000 Pa |
| 100 mmHg | = | 13332.20000 Pa |
| 200 mmHg | = | 26664.40000 Pa |
| 300 mmHg | = | 39996.60000 Pa |
| 400 mmHg | = | 53328.80000 Pa |
| 500 mmHg | = | 66661.00000 Pa |
| 600 mmHg | = | 79993.20000 Pa |
| 700 mmHg | = | 93325.40000 Pa |
| 800 mmHg | = | 106657.60000 Pa |
| 900 mmHg | = | 119989.80000 Pa |
| 1000 mmHg | = | 133322.00000 Pa |
How to Convert MMHG to PA (Millimeter mercury to Pascal)?
We can convert millimeter mercury to pascal by using an example.
Example:
Convert 20 Millimeter mercury to Pascal?
We know 1 Millimeter mercury = 133.3220000 pascal; 1 Pascal = 0.0075006 millimeter mercury.
20 millimeter mercury = ___Pa
20 × 133.3220000 = 2666.44000 Pa (we know 1 millimeter mercury = 133.3220000 pascal)
Answer:
20 millimeter mercury = 2666.44000 pascal
How to Convert mmHg to Pascal (Step-by-Step)
Converting millimeters of mercury (mmHg) to pascals is essential in medical instrumentation and laboratory science. Blood pressure monitors read in mmHg, while SI-based research papers report in Pa. The conversion factor is 1 mmHg = 133.322 Pa.
- Write down the pressure value in mmHg.
- Multiply the mmHg value by 133.322.
- The result is the equivalent pressure in pascals (Pa).
- For quick estimation, multiply by 133 (undershoots by only 0.24%).
Common mmHg to Pascal Conversions
Medical, laboratory, and vacuum science pressure values in both mmHg and Pa.
| Millimeter mercury | Pascal |
|---|---|
| 1 mmHg | 133.3 Pa |
| 40 mmHg | 5,333 Pa |
| 80 mmHg | 10,666 Pa |
| 120 mmHg | 15,999 Pa |
| 140 mmHg | 18,665 Pa |
| 200 mmHg | 26,664 Pa |
| 760 mmHg | 101,325 Pa |
Solved Examples: mmHg to Pascal
Question 1: A patient has systolic blood pressure of 135 mmHg. Express in pascals for a biomedical engineering report.
Solution:
Pressure in Pa = Pressure in mmHg × 133.322
= 135 × 133.322
= 17,998 Pa
Answer: 135 mmHg = 17,998 Pa ≈ 18.0 kPa — borderline pre-hypertension.
Question 2: A laboratory vacuum manifold operates at 0.1 mmHg. Convert to pascals.
Solution:
Pressure in Pa = 0.1 × 133.322
= 13.33 Pa
Answer: 0.1 mmHg = 13.33 Pa — a good vacuum for rotary evaporation.
Question 3: Intracranial pressure (ICP) is measured at 15 mmHg. What is this in Pa?
Solution:
Pressure in Pa = 15 × 133.322
= 1,999.8 Pa
Answer: 15 mmHg = 2000 Pa ≈ 2 kPa — at the upper limit of normal ICP.
Practice Questions: mmHg to Pascal
Try solving these on your own to test your understanding:
- Convert 120 mmHg (systolic BP) to Pa. (Answer: 15,999 Pa)
- A vacuum pump achieves 0.01 mmHg. Express in Pa. (Answer: 1.333 Pa)
- Convert 760 mmHg to Pa. (Answer: 101,325 Pa)
- Central venous pressure is 8 mmHg. What is this in Pa? (Answer: 1067 Pa)
- Convert 300 mmHg to Pa. (Answer: 39,997 Pa)
Blood Pressure Measurement: Why Medicine Keeps mmHg
Despite SI adoption in most sciences, blood pressure remains reported in mmHg worldwide. The unit dates to Riva-Rocci sphygmomanometers (1896) that literally measured mercury column height. Clinical thresholds (120/80, 140/90, 180/120 mmHg) are deeply embedded in medical guidelines, drug trial data, and physician training. Converting to Pa would yield unfamiliar numbers (15,999/10,666 Pa) that could introduce errors in clinical decision-making. Biomedical engineers bridge both worlds.
Physiology and the Pascal: Body Pressures in SI
Various body pressures in mmHg and Pa: arterial BP 120/80 mmHg (16.0/10.7 kPa); intracranial pressure 5-15 mmHg (667-2000 Pa); intraocular pressure 10-21 mmHg (1333-2799 Pa); central venous pressure 2-8 mmHg (267-1067 Pa); pulmonary artery pressure 15-30 mmHg (2000-4000 Pa). Research papers in physiology journals may require SI units, necessitating this conversion for every physiological parameter.
Vacuum Science: mmHg, Torr, and Pascal
In vacuum science, mmHg and torr are essentially identical (difference < 0.000015%). Both convert to Pa by multiplying by 133.322. Vacuum ranges in mmHg: rough vacuum 760-1 mmHg (101,325-133 Pa); medium vacuum 1-0.001 mmHg (133-0.133 Pa); high vacuum <0.001 mmHg (<0.133 Pa). Modern vacuum standards prefer Pa, but legacy equipment and older literature still reference mmHg extensively.
Key Takeaways
- Multiply mmHg by 133.322 to get pascals.
- 1 mmHg ≈ 1 torr (difference is negligible for practical purposes).
- Blood pressure 120/80 mmHg = 15,999/10,666 Pa.
- Standard atmosphere: 760 mmHg = 101,325 Pa exactly.
- Medicine retains mmHg despite SI standardization elsewhere.
- Quick estimate: mmHg × 133 ≈ Pa (0.24% error).
Millimeter mercury to Pascal Conversion Formula
pascal = millimeter mercury × 133.3220000
1 millimeter mercury = 133.3220000 pascal
1 pascal = 0.0075006 millimeter mercury
Reverse: millimeter mercury = pascal × 0.0075006
Frequently Asked Questions
How many pascal are in 1 millimeter mercury?
There are 133.3220000 pascal in 1 millimeter mercury. To convert millimeter mercury to pascal, multiply the value by 133.3220000.
How do I convert millimeter mercury to pascal?
Multiply your millimeter mercury value by 133.3220000 to get the equivalent in pascal. For example, 5 millimeter mercury = 5 × 133.3220000 = 666.61000 pascal.
How do I convert pascal to millimeter mercury?
Multiply your pascal value by 0.0075006 to get the equivalent in millimeter mercury. Alternatively, divide by 133.3220000.
What is 10 millimeter mercury in pascal?
10 millimeter mercury is equal to 1333.22000 pascal.
What is 100 millimeter mercury in pascal?
100 millimeter mercury is equal to 13332.20000 pascal.