mmHg to Pa Converter - Millimeters of Mercury to Pascal
Millimeters of Mercury (mmHg) to Pascal (Pa)
Direct answer
1 mmHg = 133.322 Pa
Pa = mmHg × 133.322
Converter
Conversion formula
Pa = mmHg × 133.322
mmHg = Pa × 0.007500637554
Example: 10 mmHg = 10 × 133.322 = 1,333.22 Pa.
Common conversion table
| mmHg | Pa |
|---|---|
| 1 mmHg | 133.322 Pa |
| 2 mmHg | 266.644 Pa |
| 5 mmHg | 666.61 Pa |
| 10 mmHg | 1,333.22 Pa |
| 20 mmHg | 2,666.44 Pa |
| 50 mmHg | 6,666.1 Pa |
| 100 mmHg | 13,332.2 Pa |
| 1,000 mmHg | 133,322 Pa |
Conversion derivation
Express both mmHg and Pa in the same base unit Pa (pascal), then cancel the shared base unit.
- 1
Rewrite mmHg in the base unit
- 2
Rewrite Pa in the base unit
- 3
Forward conversion
- 4
Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
Conversion from millimeters of mercury (mmHg) to pascal (Pa)
The conversion factor of 133.322 is used because one millimeter of mercury is defined as the pressure exerted by a column of mercury one millimeter high at a standard gravitational acceleration and temperature, which corresponds to approximately 133.322 pascals.
Definition
The millimeter of mercury (mmHg) is a unit of pressure based on the height of a mercury column, while the pascal (Pa) is the SI unit of pressure, defined as one newton per square meter.
Principle
The conversion factor is derived by equating the physical pressure exerted by 1 mmHg to its equivalent in pascals. The provided derivation reference shows both units expressed in the base unit of pascals, allowing them to be directly compared.
Assumptions
- The conversion assumes standard conditions for gravity and temperature that define the mmHg unit, though these specifics are not provided in the context.
- The factor 133.322 is treated as an exact defined equivalence within the context of this page.
Cautions
- The context does not specify the exact standard conditions (e.g., gravitational acceleration, temperature) used to define the mmHg, which could affect high-precision work.
- Users should round results to the precision required for their specific calculation, as noted in the FAQ.
FAQ
How many Pa are in 1 mmHg?
1 mmHg = 133.322 Pa.
How many Pa are in 10 mmHg?
10 mmHg = 1,333.22 Pa.
How many Pa are in 100 mmHg?
100 mmHg = 13,332.2 Pa.
What is the formula to convert mmHg to Pa?
Use Pa = mmHg × 133.322.
How many mmHg are in 1 Pa?
1 Pa = 0.007500637554 mmHg.
What should I check when converting mmHg to Pa?
Use the conversion factor and round the result to the precision required by your calculation.