How many centipascals are in 1 bar?

1 bar equals 10,000,000 centipascals, using the exact defined conversion factor rather than an estimate.

How do I convert bar to centipascal?

Multiply the bar value by 10000000. The converter above does this instantly to whatever precision you set.

How do I convert centipascal back to bar?

Use the reverse factor: 1 centipascal equals 1e-7 bars. You can also use the swap control in the converter above to flip the direction instantly.

What is a centipascal?

Centipascal (cPa) is a unit of pressure.

Is the bar to centipascal conversion exact?

Yes. A bar is defined as exactly 100,000 pascals, close to (but distinct from) one standard atmosphere (101,325 Pa). That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.

Bars to Centipascals Converter

Q: What is a bar?

Bar (bar) measures pressure. A bar is defined as exactly 100,000 pascals, close to (but distinct from) one standard atmosphere (101,325 Pa). It is classified as a Non-SI metric unit accepted for use with SI.

About Converting Bars to Centipascals

Bar and Centipascal both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Bar is most often used for tire pressure specifications outside the us.

Formula

centipascals = bars × 10000000

This factor comes from each unit's defined relationship to the category's base unit: 1 bar equals 100000 base units, and 1 centipascal equals 0.01 base units, so dividing one by the other gives the direct bar-to-centipascal factor of 10000000.

Simple example

1 bar × 10000000 = 10,000,000 cPa

1 bar = 10,000,000 centipascals.

Real-world example

35 bar × 10000000 = 350,000,000 cPa

35 bars = 350,000,000 centipascals.

Conversion table

Bar (bar)	Centipascal (cPa)
1 bar	10,000,000 cPa
5 bar	50,000,000 cPa
10 bar	100,000,000 cPa
25 bar	250,000,000 cPa
50 bar	500,000,000 cPa
100 bar	1,000,000,000 cPa

Reverse conversion: Centipascal to Bar

1 cPa × 1e-7 = 1e-7 bar

1 centipascal = 1e-7 bars.

bars = centipascals × 1e-7

For a page dedicated to this direction, see Centipascal to Bar.

Understanding the Bar

Bar (bar) measures pressure. A bar is defined as exactly 100,000 pascals, close to (but distinct from) one standard atmosphere (101,325 Pa). It is classified as a Non-SI metric unit accepted for use with SI.

Where it's used: Widely used in Europe and most of the world for tire pressure, weather, and industrial pressure

Uses of the Bar today

Tire pressure specifications outside the US
Meteorology (weather maps commonly use millibars, hPa)
Industrial and hydraulic pressure ratings in metric-system countries

History of the Bar

The bar was proposed by Norwegian meteorologist Vilhelm Bjerknes around 1906 as a convenient round pressure unit close to atmospheric pressure, derived from the CGS unit system (one bar equals one million dynes per square centimeter).

Though not an SI unit, the bar remains in wide practical use, particularly in meteorology (as the millibar, now more often written as the equivalent hectopascal) and in tire and hydraulic pressure specifications across most of the world.

Historical origin. Bar was not the invention of a single named person; it developed through the process described above.

Understanding the Centipascal (cPa)

Centipascal is 0.01 pascal units.

Bar — sources

BIPM SI Brochure — Non-SI units accepted for use with SI — Lists the bar among accepted non-SI pressure units.

Bars to Centipascals Converter — bar to cPa

Pressure Converter