By Debmedia Technologies LLP · Kolkata, India · Updated
What Is It and When Do You Need It?
Pressure is force spread over an area. Tyre pressure is often given in psi or bar, weather in millibars or hectopascals, blood pressure in mmHg, and engineering in pascals and megapascals.
This converter handles 10 units for pascal and shows the result in all of them at once, so you rarely need a second lookup.
How to Use This Tool
- Type the value you want to convert.
- Choose the unit you have in the From list.
- Choose the unit you want in the To list.
- Press Convert and read the answer and the table of every unit.
How the Calculation Works
Every unit is stored as a multiple of one reference unit (the pascal). To convert, the value is multiplied into the reference unit and then divided by the size of the target unit. All factors are exact or taken from standard definitions, and results show up to ten significant digits.
Worked Example
| You enter | You get |
|---|---|
| 1 Pa | 0.001 kPa |
| 10 Pa | 1e-05 MPa |
| 100 kPa | 100000 Pa |
Reference values:
| From | To |
|---|---|
| 1 Pascal | 0.001 kPa |
| 1 Pascal | 1e-06 MPa |
| 1 Pascal | 1e-05 bar |
| 1 Pascal | 0.01 mbar |
| 1 Pascal | 9.8692327e-06 atm |
| 1 Pascal | 0.00014503774 psi |
| 1 Pascal | 0.0075006158 mmHg |
| 1 Pascal | 0.0075006168 Torr |
| 1 Pascal | 0.0002952998 inHg |
Common Uses
- Setting tyre pressure from a manual that uses a different unit.
- Reading weather and barometer values.
- Medical blood pressure readings in mmHg.
- Engineering and hydraulic specifications.
Tips and Common Mistakes
- One standard atmosphere is 101,325 pascals, about 14.696 psi.
- One bar is almost exactly one atmosphere.
- Use the table under the answer to see the same value in every unit.
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