Convert Millimeters of Mercury to Pascals
Instantly convert Millimeters of Mercury (mmHg) to Pascals (Pa) with our free online calculator.
Formula: mmHg to Pa — multiply by 133.322
Reference Table
| Millimeters of Mercury (mmHg) | Pascals (Pa) |
|---|---|
| 1 | 133.322 |
| 5 | 666.61 |
| 10 | 1333.22 |
| 25 | 3333.05 |
| 50 | 6666.1 |
| 100 | 13332.2 |
How to Convert Millimeters of Mercury to Pascals
Formula
To convert Millimeters of Mercury (mmHg) to Pascals (Pa): multiply by 133.322
Step-by-Step
- Start with your value in Millimeters of Mercury (mmHg).
- Multiply by 133.322 to perform the conversion.
- The result is your value expressed in Pascals (Pa).
Conversion Factor
1 mmHg = 133.322 Pa
Reverse Factor
1 Pa = 0.00750064 mmHg
Worked Example
Convert 25 Millimeters of Mercury to Pascals: 25 mmHg = 3333.05 Pa
About Millimeters of Mercury (mmHg)
A unit of pressure historically defined as the pressure exerted by a 1-millimeter column of mercury at standard gravity. Millimeters of mercury are the default unit for clinical blood-pressure readings worldwide ("120 over 80") and intraocular pressure in ophthalmology. The mmHg is numerically almost identical to the torr (1 mmHg ≈ 1.0000007 torr). Barometric atmospheric pressure was historically quoted in mmHg as well — 760 mmHg = 1 atm.
About Pascal (Pa)
The SI derived unit of pressure equal to one newton per square meter (N/m²). Named for 17th-century French mathematician Blaise Pascal, whose work on fluid statics underpins modern pressure theory. The pascal is a small unit — atmospheric pressure is ~101,325 Pa — so engineering and meteorology usually work in kPa, MPa, or hPa. The pascal is the universal SI reference for pressure, used in scientific publication, thermodynamic state tables, and international engineering standards.
Quick Facts
- 1 Millimeters of Mercury equals 133.322 Pascals
- 1 Pascal equals 0.00750064 Millimeters of Mercury
- Millimeters of Mercury is a unit of pressure
- Pascal is a unit of pressure
- This conversion is commonly used in tire inflation, weather reporting, scuba diving, and engineering
- The Millimeters of Mercury belongs to the metric system
Common Millimeters of Mercury to Pascal Conversions
| Millimeters of Mercury (mmHg) | Pascals (Pa) |
|---|---|
| 0.1 | 13.3322 |
| 0.5 | 66.661 |
| 1 | 133.322 |
| 2 | 266.644 |
| 5 | 666.61 |
| 10 | 1333.22 |
| 14.696 | 1959.3 |
| 15 | 1999.83 |
| 20 | 2666.44 |
| 25 | 3333.05 |
| 50 | 6666.1 |
| 100 | 13332.2 |
| 150 | 19998.3 |
| 200 | 26664.4 |
| 500 | 66661 |
| 1000 | 133322 |
Understanding Millimeters of Mercury
The Millimeters of Mercury (symbol: mmHg) is a unit of pressure. A unit of pressure historically defined as the pressure exerted by a 1-millimeter column of mercury at standard gravity. Millimeters of mercury are the default unit for clinical blood-pressure readings worldwide ("120 over 80") and intraocular pressure in ophthalmology. The mmHg is numerically almost identical to the torr (1 mmHg ≈ 1.0000007 torr). Barometric atmospheric pressure was historically quoted in mmHg as well — 760 mmHg = 1 atm.
It belongs to the metric measurement system.
Millimeters of Mercury are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Understanding Pascals
The Pascal (symbol: Pa) is a unit of pressure. The SI derived unit of pressure equal to one newton per square meter (N/m²). Named for 17th-century French mathematician Blaise Pascal, whose work on fluid statics underpins modern pressure theory. The pascal is a small unit — atmospheric pressure is ~101,325 Pa — so engineering and meteorology usually work in kPa, MPa, or hPa. The pascal is the universal SI reference for pressure, used in scientific publication, thermodynamic state tables, and international engineering standards.
It belongs to the metric measurement system.
Pascals are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Why Convert Millimeters of Mercury to Pascals?
Engineers, mechanics, and scientists frequently need to convert pressure between Millimeters of Mercury and Pascals when working with different measurement standards. Tire pressure, blood pressure readings, weather barometric measurements, and industrial process specifications may all use different pressure units depending on the region or discipline. Reliable conversion prevents equipment misuse and ensures safety.
Frequently Asked Questions
How do I convert Millimeters of Mercury to Pascals?
A unit of pressure historically defined as the pressure exerted by a 1-millimeter column of mercury at standard gravity. To convert Millimeters of Mercury to Pascals, multiply by 133.322. For example, 25 mmHg equals 3333.05 Pa.
How many Pascals are in 1 Millimeters of Mercury?
There are 133.322 Pascals in 1 Millimeters of Mercury.
How many Millimeters of Mercury are in 1 Pascal?
There are 0.00750064 Millimeters of Mercury in 1 Pascal.
What is the formula for Millimeters of Mercury to Pascal conversion?
The formula is: multiply by 133.322. This means 1 mmHg = 133.322 Pa.
Is a Millimeters of Mercury bigger than a Pascal?
No. One Millimeters of Mercury is smaller than one Pascal because 1 mmHg equals 133.322 Pa, which is greater than 1.
When do you need to convert between Millimeters of Mercury and Pascals?
The SI derived unit of pressure equal to one newton per square meter (N/m²). Millimeters of Mercury and Pascal are both pressure units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.