hectopascal [hPa] to bar [bar] Converter

hPa

bar

How to Convert hectopascal to barbar

1 hPa = 0.001 bar
1 bar = 1000 hPa

Example: convert 84 hPa to bar:
84 hPa = 84 x 0.001 = 0.084 bar

hectopascal

Definition: The hectopascal (symbol: hPa) is a multiple of the pascal, which is the SI unit of pressure. One hPa is equal to 100 pascals.

History/origin: The hectopascal was introduced as a replacement for the millibar (mbar) in meteorology. The change was intended to promote the use of SI units.

Current use: Hectopascals are primarily used in meteorology for measuring atmospheric pressure. 1 hPa is equivalent to 1 mbar, which was previously the standard unit for atmospheric pressure.

bar

Definition: The bar (symbol: bar) is a metric unit of pressure, but not part of the International System of Units (SI). It is defined as exactly equal to 100,000 Pa (100 kPa), which is slightly less than current average atmospheric pressure on Earth at sea level.

History/origin: The bar was introduced by British meteorologist William Napier Shaw in 1909.

Current use: The bar is used in various fields, including meteorology, diving (for measuring pressure underwater), and industrial applications. It is often used when a unit close to atmospheric pressure is convenient.

hectopascal to bar Conversion Table

hectopascal [hPa]bar [bar]
0.01 hPa0.00001 bar
0.1 hPa0.00010000000000000002 bar
1 hPa0.001 bar
10 hPa0.01 bar
50 hPa0.05 bar
100 hPa0.1 bar
1000 hPa1 bar
10000 hPa10 bar

Common pairs of Pressure