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inH₂O to mbar Converter

Convert inch of water, conventional (inH₂O) to millibar (mbar). Enter a value for an instant result, or use the examples and reverse conversion below.

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STRUCTURAL

Pressure & stress

Pressure, material stress and fluid head.

inH₂O
mbar

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

Result2.49089 mbar1 inH₂O = 2.49089 mbar
HOW IT IS CALCULATED

Convert through pascal

Enter a inch of water, conventional value to calculate millibar 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 inH₂OPa249.089
hectopascalfrom inH₂OhPa2.49089
kilopascalfrom inH₂OkPa0.249089
megapascalfrom inH₂OMPa0.000249089
gigapascalfrom inH₂OGPa0.000000249089
millibarfrom inH₂Ombar2.49089
barfrom inH₂Obar0.00249089
standard atmospherefrom inH₂Oatm0.00245832
torrfrom inH₂OTorr1.86832
millimetre of mercuryfrom inH₂OmmHg1.86832
inch of mercury, conventionalfrom inH₂OinHg0.0735559
millimetre of water, conventionalfrom inH₂OmmH₂O25.4
inch of water, conventionalfrom inH₂OinH₂O1
pound-force per square footfrom inH₂Opsf5.20233
pound-force per square inchfrom inH₂Opsi0.0361273
kilopound-force per square inchfrom inH₂Oksi0.0000361273
kilogram-force per square centimetrefrom inH₂Okgf/cm²0.00254

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

inH₂O to mbar Conversion Reference

Inch Of Water, Conventional (inH₂O) and millibar (mbar) are units of pressure & stress. Use this page to convert in either direction.

Conversion Examples

Inch Of Water, Conventional to Millibar
Inch Of Water, Conventional (inH₂O)Millibar (mbar)
1 inH₂O2.49089 mbar
5 inH₂O12.4544 mbar
10 inH₂O24.9089 mbar
100 inH₂O249.089 mbar

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

Reverse Conversion

mbar to inH₂O (millibar to inch of water, conventional)

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