Kilopascals to bar
Multiply kilopascals by 0.01 to get bar.
200 kPa = 2 bar
How to convert kilopascals to bar
The bar is exactly 100 000 pascals (100 kPa), close to one atmosphere. The kilopascal is one thousand pascals (10³ Pa), the metric pressure unit.
Worked example — 200 kPa: 200 × 0.01 = 2 bar.
Kilopascals to bar table
| Kilopascals | Bar |
|---|---|
| 1 kPa | 0.01 bar |
| 10 kPa | 0.1 bar |
| 50 kPa | 0.5 bar |
| 100 kPa | 1 bar |
| 200 kPa | 2 bar |
| 300 kPa | 3 bar |
| 500 kPa | 5 bar |
| 1,000 kPa | 10 bar |
| 2,000 kPa | 20 bar |
Reverse and related
About kilopascals and bar
Kilopascal (kPa)
1 kPa = 0.01 barDefinition. One thousand pascals (10³ Pa), the metric pressure unit
History and origin
The kilopascal is one thousand pascals, a metric multiple of the SI pressure unit. It gives conveniently sized numbers for everyday pressures.
Current use
Kilopascals are used for tyre pressure in metric countries and throughout engineering.
Source: NIST SP 811, App. B; ISO 80000-4. Exact SI values are definitional (bar = 10⁵ Pa, atm = 101 325 Pa) or derived from the pound (NIST HB 44) and standard gravity 9.80665 m/s² (psi)
Bar (bar)
1 bar = 100 kPaDefinition. Exactly 100 000 pascals (100 kPa), close to one atmosphere
History and origin
The bar was introduced in the early twentieth century by the meteorologist Vilhelm Bjerknes, defined as exactly 100 000 pascals, close to average sea-level air pressure. Its name comes from the Greek for weight.
Current use
The bar is common outside the United States for tyre pressure, diving and weather, where the closely related millibar is also used.
Source: NIST SP 811, App. B; ISO 80000-4. Exact SI values are definitional (bar = 10⁵ Pa, atm = 101 325 Pa) or derived from the pound (NIST HB 44) and standard gravity 9.80665 m/s² (psi)
Where people use this
Kilopascals: tyre pressure (metric), engineering. Bar: tyre pressure outside the US, diving, weather. 100 kPa is exactly 1 bar.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST SP 811, App. B; ISO 80000-4. Exact SI values are definitional (bar = 10⁵ Pa, atm = 101 325 Pa) or derived from the pound (NIST HB 44) and standard gravity 9.80665 m/s² (psi).
Questions people ask
How many bar is 100 kPa?
100 kPa is exactly 1 bar.
How many bar is 200 kPa?
200 kPa is 2 bar.
How many kPa in a bar?
One bar is exactly 100 kPa.