Kilopascals Converter
Convert Kilopascals (kPa) 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 kilopascals convert to
One kPa in every other pressure unit.
| Unit | 1 kPa | Reverse |
|---|---|---|
| Pascals | 1,000 Pa | 0.001 kPa |
| Megapascals | 0.001 MPa | 1,000 kPa |
| Bar | 0.01 bar | 100 kPa |
| Millibar | 10 mbar | 0.1 kPa |
| Atmospheres | 0.009869 atm | 101.325 kPa |
| Pounds per square inch | 0.145038 psi | 6.894757 kPa |
| Millimeters of mercury | 7.500616 mmHg | 0.133322 kPa |
| Inches of mercury | 0.2953 inHg | 3.386389 kPa |
Multiply a kilopascals 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.
Kilopascals conversion reference
Kilopascals to Pascals
One kilopascals is 1,000 pascals, and one pascals is 0.001 kilopascals.
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.
- 1 kPa= 1,000 Pa
- 2 kPa= 2,000 Pa
- 5 kPa= 5,000 Pa
Kilopascals to Megapascals
One kilopascals is 0.001 megapascals, and one megapascals is 1,000 kilopascals.
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 kPa= 0.001 MPa
- 2 kPa= 0.002 MPa
- 5 kPa= 0.005 MPa
Kilopascals to Bar
One kilopascals is 0.01 bar, and one bar is 100 kilopascals.
One bar is exactly 100,000 pascals, slightly less than one atmosphere. It is used for tyre pressure, industrial gases and weather charts.
- 1 kPa= 0.01 bar
- 2 kPa= 0.02 bar
- 5 kPa= 0.05 bar
Kilopascals to Millibar
One kilopascals is 10 millibar, and one millibar is 0.1 kilopascals.
A millibar is 100 pascals, identical to the hectopascal used in weather reports. Average sea-level pressure is about 1,013 millibars.
- 1 kPa= 10 mbar
- 2 kPa= 20 mbar
- 5 kPa= 50 mbar
Kilopascals to Atmospheres
One kilopascals is 0.009869 atmospheres, and one atmospheres is 101.325 kilopascals.
One atmosphere is exactly 101,325 pascals, the average air pressure at sea level. It is used for gas calculations and diving tables.
- 1 kPa= 0.009869 atm
- 2 kPa= 0.019738 atm
- 5 kPa= 0.049346 atm
Kilopascals to Pounds per square inch
One kilopascals is 0.145038 pounds per square inch, and one pounds per square inch is 6.894757 kilopascals.
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 kPa= 0.145038 psi
- 2 kPa= 0.290075 psi
- 5 kPa= 0.725189 psi
Kilopascals to Millimeters of mercury
One kilopascals is 7.500616 millimeters of mercury, and one millimeters of mercury is 0.133322 kilopascals.
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 kPa= 7.500616 mmHg
- 2 kPa= 15.001232 mmHg
- 5 kPa= 37.503079 mmHg
Kilopascals to Inches of mercury
One kilopascals is 0.2953 inches of mercury, and one inches of mercury is 3.386389 kilopascals.
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 kPa= 0.2953 inHg
- 2 kPa= 0.5906 inHg
- 5 kPa= 1.476499 inHg
What kilopascals are used for
A kilopascal is 1,000 pascals. It is the unit for tyre pressure in metric countries, and is used for gas and weather pressures.
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.
Kilopascals conversion tables
Kilopascals to Pascals
| Kilopascals (kPa) | Pascals (Pa) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
Kilopascals to Megapascals
| Kilopascals (kPa) | Megapascals (MPa) |
|---|---|
| 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 |
Kilopascals to Bar
| Kilopascals (kPa) | Bar (bar) |
|---|---|
| 1 | 0.01 |
| 2 | 0.02 |
| 3 | 0.03 |
| 4 | 0.04 |
| 5 | 0.05 |
| 10 | 0.1 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |