Pascals Converter
Convert Pascals (Pa) to any other pressure unit. The table below gives the exact figure for each unit, and every conversion is worked from the same engine as the converter.
What pascals convert to
One Pa in every other pressure unit.
| Unit | 1 Pa | Reverse |
|---|---|---|
| Kilopascals | 0.001 kPa | 1,000 Pa |
| Megapascals | 1e-6 MPa | 1,000,000 Pa |
| Bar | 1e-5 bar | 100,000 Pa |
| Millibar | 0.01 mbar | 100 Pa |
| Atmospheres | 9.8692e-6 atm | 101,325 Pa |
| Pounds per square inch | 1.4504e-4 psi | 6,894.757293 Pa |
| Millimeters of mercury | 0.007501 mmHg | 133.322387 Pa |
| Inches of mercury | 2.953e-4 inHg | 3,386.389 Pa |
Multiply a pascals figure by the figure in the second column to get the unit in the first, or multiply by the third column to go the other way.
Pascals conversion reference
Pascals to Kilopascals
One pascals is 0.001 kilopascals, and one kilopascals is 1,000 pascals.
A kilopascal is 1,000 pascals. It is the unit for tyre pressure in metric countries, and is used for gas and weather pressures.
- 1 Pa= 0.001 kPa
- 2 Pa= 0.002 kPa
- 5 Pa= 0.005 kPa
Pascals to Megapascals
One pascals is 1e-6 megapascals, and one megapascals is 1,000,000 pascals.
A megapascal is 1,000 kilopascals, or one million pascals. It is used for concrete strength, where structural concrete is typically specified between 20 and 40 MPa.
- 1 Pa= 1e-6 MPa
- 5 Pa= 5e-6 MPa
- 10 Pa= 1e-5 MPa
Pascals to Bar
One pascals is 1e-5 bar, and one bar is 100,000 pascals.
One bar is exactly 100,000 pascals, slightly less than one atmosphere. It is used for tyre pressure, industrial gases and weather charts.
- 1 Pa= 1e-5 bar
- 5 Pa= 5e-5 bar
- 10 Pa= 1e-4 bar
Pascals to Millibar
One pascals is 0.01 millibar, and one millibar is 100 pascals.
A millibar is 100 pascals, identical to the hectopascal used in weather reports. Average sea-level pressure is about 1,013 millibars.
- 1 Pa= 0.01 mbar
- 2 Pa= 0.02 mbar
- 5 Pa= 0.05 mbar
Pascals to Atmospheres
One pascals is 9.8692e-6 atmospheres, and one atmospheres is 101,325 pascals.
One atmosphere is exactly 101,325 pascals, the average air pressure at sea level. It is used for gas calculations and diving tables.
- 1 Pa= 9.8692e-6 atm
- 5 Pa= 4.9346e-5 atm
- 10 Pa= 9.8692e-5 atm
Pascals to Pounds per square inch
One pascals is 1.4504e-4 pounds per square inch, and one pounds per square inch is 6,894.757293 pascals.
One psi (pound per square inch) is 6,894.757293168 pascals. It is the tyre-pressure and hydraulic unit in the United States and the UK.
- 1 Pa= 1.4504e-4 psi
- 2 Pa= 2.9008e-4 psi
- 5 Pa= 7.2519e-4 psi
Pascals to Millimeters of mercury
One pascals is 0.007501 millimeters of mercury, and one millimeters of mercury is 133.322387 pascals.
One millimeter of mercury is 133.322387415 pascals. It is still used for blood-pressure readings, where 120/80 mmHg is the familiar healthy range.
- 1 Pa= 0.007501 mmHg
- 2 Pa= 0.015001 mmHg
- 5 Pa= 0.037503 mmHg
Pascals to Inches of mercury
One pascals is 2.953e-4 inches of mercury, and one inches of mercury is 3,386.389 pascals.
One inch of mercury is 3,386.389 pascals. It is used for barometric pressure and altimeter settings in aviation in the United States.
- 1 Pa= 2.953e-4 inHg
- 2 Pa= 5.906e-4 inHg
- 5 Pa= 0.001476 inHg
What pascals are used for
The pascal is the SI unit of pressure: one newton per square meter. It is used in science and engineering, usually as kilopascals or megapascals.
Bar, atmosphere and psi are exact definitions. Gauges and weather stations round heavily, so treat the last digit as indicative rather than precise.
Pressure units are all defined against the pascal, so the conversion is a multiplication by a fixed number. What makes this dimension awkward is that the numbers sit within tens of per cent of each other, so a small slip looks plausible.
Three of the units are close together on purpose: one bar is 100,000 pascals, one atmosphere is 101,325, and weather reports use millibars and hectopascals, which are the same size. A reading that looks like a unit error is often a genuine difference between gauge pressure and absolute pressure instead.
Checking a pressure conversion means converting through pascals and comparing with a known reference, such as the fact that a bar and an atmosphere differ by about 1.3%. The error to watch for is quoting a pressure without saying whether it is measured above atmospheric pressure or from a vacuum.
Pascals conversion tables
Pascals to Kilopascals
| Pascals (Pa) | Kilopascals (kPa) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
Pascals to Megapascals
| Pascals (Pa) | Megapascals (MPa) |
|---|---|
| 1 | 1e-6 |
| 2 | 2e-6 |
| 3 | 3e-6 |
| 4 | 4e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 25 | 2.5e-5 |
| 50 | 5e-5 |
| 100 | 1e-4 |
Pascals to Bar
| Pascals (Pa) | Bar (bar) |
|---|---|
| 1 | 1e-5 |
| 2 | 2e-5 |
| 3 | 3e-5 |
| 4 | 4e-5 |
| 5 | 5e-5 |
| 10 | 1e-4 |
| 25 | 2.5e-4 |
| 50 | 5e-4 |
| 100 | 0.001 |