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hPa to bar Converter

Convert hectopascal (hPa) to bar (bar). Enter a value for an instant result, or use the examples and reverse conversion below.

520units ready to convert
STRUCTURAL

Pressure & stress

Pressure, material stress and fluid head.

hPa
bar

Try a decimal, 1e-9, 1/3, or 5 1/2.

Result0.001 bar1 hPa = 0.001 bar
HOW IT IS CALCULATED

Convert through pascal

Enter a hectopascal value to calculate bar with full internal precision before display rounding.

Display PrecisionAuto · 6 significant digits

Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.

QUICK REFERENCE

All units in this quantity

UnitSymbolConverted value
pascalfrom hPaPa100
hectopascalfrom hPahPa1
kilopascalfrom hPakPa0.1
megapascalfrom hPaMPa0.0001
gigapascalfrom hPaGPa0.0000001
millibarfrom hPambar1
barfrom hPabar0.001
standard atmospherefrom hPaatm0.000986923
torrfrom hPaTorr0.750062
millimetre of mercuryfrom hPammHg0.750062
inch of mercury, conventionalfrom hPainHg0.02953
millimetre of water, conventionalfrom hPammH₂O10.1972
inch of water, conventionalfrom hPainH₂O0.401463
pound-force per square footfrom hPapsf2.08854
pound-force per square inchfrom hPapsi0.0145038
kilopound-force per square inchfrom hPaksi0.0000145038
kilogram-force per square centimetrefrom hPakgf/cm²0.00101972

SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.

hPa to bar Conversion Reference

Hectopascal (hPa) and bar (bar) are units of pressure & stress. Use this page to convert in either direction.

Conversion Examples

Hectopascal to Bar
Hectopascal (hPa)Bar (bar)
1 hPa0.001 bar
5 hPa0.005 bar
10 hPa0.01 bar
100 hPa0.1 bar

Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.

Reverse Conversion

bar to hPa (bar to hectopascal)

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