Inch of Water Converter

Inch of water is a unit of measurement for pressure. It refers to the inch of water column at 4 degC. One inch of water is equal to 186.83 centitorrs. The symbol for Inch of Water is inH2O.
Use this Inch of Water converter to change values into other pressure units. Enter a value, choose the target unit, and review the converted result without applying the conversion factor by hand.
It is useful when a measurement is recorded in Inch of Water but a formula, specification, or comparison requires another pressure unit. The available target units are listed below the example and conversion table.
Inch of Water is one of the units available in this pressure category. Use the result as a reference, and retain suitable precision when the value will be used in a technical or scientific calculation.
The calculator formats results for readability. Display rounding can affect the last digits, so check the original input and the shown precision before copying a result into a report or further formula.

What is Inch of Water?

Inch of water is a unit of measurement for pressure. It refers to the inch of water column at 4 degC. One inch of water is equal to 186.83 centitorrs.
When comparing Inch of Water with another unit, make sure both values describe the same type of measurement. The converter applies the available unit relationship and presents the result in the target unit you select.

How to Use Inch of Water Converter

  • Select Inch of Water from the first dropdown and enter the amount you want to convert.
  • Choose the target unit from the second dropdown, such as Kilobar.
  • The converter instantly calculates the value and displays the converted result.
  • Use the result for comparison, calculations, or quick reference when working with pressure measurements.
For repeated conversions, keep the source unit as Inch of Water and change only the target unit. If the result will be used in another calculation, use the displayed precision as a guide and verify the final rounding required by your context.

Example of Inch of Water Conversion

Inch of Water

1

Kilobar

0.0000024908890832823

Frequently asked questions about Inch of Water conversion

What is the Inch of Water converter used for?
It changes a value from Inch of Water into another available pressure unit for comparison, reference, or further calculation.
Can I use this for everyday and technical conversions?
Yes. Select Inch of Water as the source unit, choose the target unit, and review the result. Use appropriate precision when applying it to technical work.
Why is Inch of Water conversion important?
Measurements are often recorded in different unit scales. Converting Inch of Water to the unit required by a formula or comparison makes the value easier to interpret.

Inch of Water to Other Units Conversion Table

ConversionDescription
1 Inch of Water = 0.0024583163911002 Atmosphere1 Inch of Water in Atmosphere is equal to 0.0024583163911002
1 Inch of Water = 2490889329124700 Attobar1 Inch of Water in Attobar is equal to 2490889329124700
1 Inch of Water = 249088932912470000000 Attopascal1 Inch of Water in Attopascal is equal to 249088932912470000000
1 Inch of Water = 0.0024908890832823 Bar1 Inch of Water in Bar is equal to 0.0024908890832823
1 Inch of Water = 2490.89 Barad1 Inch of Water in Barad is equal to 2490.89
1 Inch of Water = 2490.89 Barye1 Inch of Water in Barye is equal to 2490.89
1 Inch of Water = 0.24908893291247 Centibar1 Inch of Water in Centibar is equal to 0.24908893291247
1 Inch of Water = 24908.89 Centipascal1 Inch of Water in Centipascal is equal to 24908.89
1 Inch of Water = 186.83 Centitorr1 Inch of Water in Centitorr is equal to 186.83
1 Inch of Water = 2.54 Centimeter of Water1 Inch of Water in Centimeter of Water is equal to 2.54
1 Inch of Water = 0.18683203392288 Centimeter of Mercury1 Inch of Water in Centimeter of Mercury is equal to 0.18683203392288
1 Inch of Water = 0.024908890832823 Decibar1 Inch of Water in Decibar is equal to 0.024908890832823
1 Inch of Water = 2490.89 Decipascal1 Inch of Water in Decipascal is equal to 2490.89
1 Inch of Water = 0.00024908890832823 Dekabar1 Inch of Water in Dekabar is equal to 0.00024908890832823
1 Inch of Water = 24.91 Dekapascal1 Inch of Water in Dekapascal is equal to 24.91
1 Inch of Water = 2.4908890832823e-21 Exabar1 Inch of Water in Exabar is equal to 2.4908890832823e-21
1 Inch of Water = 2.4908890832823e-16 Exapascal1 Inch of Water in Exapascal is equal to 2.4908890832823e-16
1 Inch of Water = 2490889083282.3 Femtobar1 Inch of Water in Femtobar is equal to 2490889083282.3
1 Inch of Water = 249088908328230000 Femtopascal1 Inch of Water in Femtopascal is equal to 249088908328230000
1 Inch of Water = 0.0061296599767738 Feet of Mercury1 Inch of Water in Feet of Mercury is equal to 0.0061296599767738
1 Inch of Water = 0.083333341555979 Feet of Water1 Inch of Water in Feet of Water is equal to 0.083333341555979
1 Inch of Water = 2.4908890832823e-12 Gigabar1 Inch of Water in Gigabar is equal to 2.4908890832823e-12
1 Inch of Water = 2.4908890832823e-7 Gigapascal1 Inch of Water in Gigapascal is equal to 2.4908890832823e-7
1 Inch of Water = 0.000024908890832823 Hectobar1 Inch of Water in Hectobar is equal to 0.000024908890832823
1 Inch of Water = 2.49 Hectopascal1 Inch of Water in Hectopascal is equal to 2.49
1 Inch of Water = 0.073555912461065 Inch of Mercury1 Inch of Water in Inch of Mercury is equal to 0.073555912461065
1 Inch of Water = 0.0000024908890832823 Kilobar1 Inch of Water in Kilobar is equal to 0.0000024908890832823
1 Inch of Water = 0.24908890832823 Kilopascal1 Inch of Water in Kilopascal is equal to 0.24908890832823
1 Inch of Water = 2.4908890832823e-9 Megabar1 Inch of Water in Megabar is equal to 2.4908890832823e-9
1 Inch of Water = 0.00024908890832823 Megapascal1 Inch of Water in Megapascal is equal to 0.00024908890832823
1 Inch of Water = 2490.89 Microbar1 Inch of Water in Microbar is equal to 2490.89
1 Inch of Water = 249088908.33 Micropascal1 Inch of Water in Micropascal is equal to 249088908.33
1 Inch of Water = 2.49 Millibar1 Inch of Water in Millibar is equal to 2.49
1 Inch of Water = 249088.91 Millipascal1 Inch of Water in Millipascal is equal to 249088.91
1 Inch of Water = 1868.33 Millitorr1 Inch of Water in Millitorr is equal to 1868.33
1 Inch of Water = 1.87 Millimeter of Mercury1 Inch of Water in Millimeter of Mercury is equal to 1.87
1 Inch of Water = 25.4 Millimeter of Water1 Inch of Water in Millimeter of Water is equal to 25.4
1 Inch of Water = 2490889.08 Nanobar1 Inch of Water in Nanobar is equal to 2490889.08
1 Inch of Water = 249088908328.23 Nanopascal1 Inch of Water in Nanopascal is equal to 249088908328.23
1 Inch of Water = 249.09 Pascal1 Inch of Water in Pascal is equal to 249.09
1 Inch of Water = 2.4908890832823e-18 Petabar1 Inch of Water in Petabar is equal to 2.4908890832823e-18
1 Inch of Water = 2.4908890832823e-13 Petapascal1 Inch of Water in Petapascal is equal to 2.4908890832823e-13
1 Inch of Water = 2490889083.28 Picobar1 Inch of Water in Picobar is equal to 2490889083.28
1 Inch of Water = 249088908328230 Picopascal1 Inch of Water in Picopascal is equal to 249088908328230
1 Inch of Water = 0.24908890832823 Pieze1 Inch of Water in Pieze is equal to 0.24908890832823
1 Inch of Water = 0.036127291759729 PSI1 Inch of Water in PSI is equal to 0.036127291759729
1 Inch of Water = 2.4908890832823e-15 Terabar1 Inch of Water in Terabar is equal to 2.4908890832823e-15
1 Inch of Water = 2.4908890832823e-10 Terapascal1 Inch of Water in Terapascal is equal to 2.4908890832823e-10
1 Inch of Water = 1.87 Torr1 Inch of Water in Torr is equal to 1.87
1 Inch of Water = 2.4908890832823e+21 Yoctobar1 Inch of Water in Yoctobar is equal to 2.4908890832823e+21
1 Inch of Water = 2.4908890832823e+26 Yoctopascal1 Inch of Water in Yoctopascal is equal to 2.4908890832823e+26
1 Inch of Water = 2.4908890832823e-27 Yottabar1 Inch of Water in Yottabar is equal to 2.4908890832823e-27
1 Inch of Water = 2.4908890832823e-22 Yottapascal1 Inch of Water in Yottapascal is equal to 2.4908890832823e-22
1 Inch of Water = 2490889083282300000 Zeptobar1 Inch of Water in Zeptobar is equal to 2490889083282300000
1 Inch of Water = 2.4908890832823e+23 Zeptopascal1 Inch of Water in Zeptopascal is equal to 2.4908890832823e+23
1 Inch of Water = 2.4908890832823e-24 Zettabar1 Inch of Water in Zettabar is equal to 2.4908890832823e-24
1 Inch of Water = 2.4908890832823e-19 Zettapascal1 Inch of Water in Zettapascal is equal to 2.4908890832823e-19
1 Inch of Water = 0.18683203392288 CentiHg1 Inch of Water in CentiHg is equal to 0.18683203392288
1 Inch of Water = 18.68 Decitorr1 Inch of Water in Decitorr is equal to 18.68
1 Inch of Water = 2490.89 Dyne/Square Centimeter1 Inch of Water in Dyne/Square Centimeter is equal to 2490.89
1 Inch of Water = 64.46 Feet of Air [0 °C]1 Inch of Water in Feet of Air [0 °C] is equal to 64.46
1 Inch of Water = 68.01 Feet of Air [15 °C]1 Inch of Water in Feet of Air [15 °C] is equal to 68.01
1 Inch of Water = 0.083333333331626 Feet of Head1 Inch of Water in Feet of Head is equal to 0.083333333331626
1 Inch of Water = 2.54 Gram Force/Square Centimeter1 Inch of Water in Gram Force/Square Centimeter is equal to 2.54
1 Inch of Water = 773.55 Inch of Air [0 °C]1 Inch of Water in Inch of Air [0 °C] is equal to 773.55
1 Inch of Water = 816.17 Inch of Air [15 °C]1 Inch of Water in Inch of Air [15 °C] is equal to 816.17
1 Inch of Water = 0.0025399999829527 Kilogram Force/Square Centimeter1 Inch of Water in Kilogram Force/Square Centimeter is equal to 0.0025399999829527
1 Inch of Water = 25.4 Kilogram Force/Square Meter1 Inch of Water in Kilogram Force/Square Meter is equal to 25.4
1 Inch of Water = 0.000025399999829527 Kilogram Force/Square Millimeter1 Inch of Water in Kilogram Force/Square Millimeter is equal to 0.000025399999829527
1 Inch of Water = 0.24908890832823 Kilonewton/Square Meter1 Inch of Water in Kilonewton/Square Meter is equal to 0.24908890832823
1 Inch of Water = 0.0025399999829527 Kilopond/Square Centimeter1 Inch of Water in Kilopond/Square Centimeter is equal to 0.0025399999829527
1 Inch of Water = 25.4 Kilopond/Square Meter1 Inch of Water in Kilopond/Square Meter is equal to 25.4
1 Inch of Water = 0.000025399999829527 Kilopond/Square Millimeter1 Inch of Water in Kilopond/Square Millimeter is equal to 0.000025399999829527
1 Inch of Water = 0.0052023444600285 Kip/Square Feet1 Inch of Water in Kip/Square Feet is equal to 0.0052023444600285
1 Inch of Water = 0.0052023444600285 KSF1 Inch of Water in KSF is equal to 0.0052023444600285
1 Inch of Water = 0.000036127291759729 Kip/Square Inch1 Inch of Water in Kip/Square Inch is equal to 0.000036127291759729
1 Inch of Water = 0.00024908890832823 Meganewton/Square Meter1 Inch of Water in Meganewton/Square Meter is equal to 0.00024908890832823
1 Inch of Water = 19.65 Meter of Air [0 °C]1 Inch of Water in Meter of Air [0 °C] is equal to 19.65
1 Inch of Water = 20.73 Meter of Air [15 °C]1 Inch of Water in Meter of Air [15 °C] is equal to 20.73
1 Inch of Water = 0.02540650406452 Meter of Head1 Inch of Water in Meter of Head is equal to 0.02540650406452
1 Inch of Water = 1868.32 Micrometer Hg1 Inch of Water in Micrometer Hg is equal to 1868.32
1 Inch of Water = 25399.87 Micrometer H2O1 Inch of Water in Micrometer H2O is equal to 25399.87
1 Inch of Water = 1868.32 Micron Hg1 Inch of Water in Micron Hg is equal to 1868.32
1 Inch of Water = 1.87 MilliHg1 Inch of Water in MilliHg is equal to 1.87
1 Inch of Water = 249.09 Newton/Square Meter1 Inch of Water in Newton/Square Meter is equal to 249.09
1 Inch of Water = 0.00024908890832823 Newton/Square Millimeter1 Inch of Water in Newton/Square Millimeter is equal to 0.00024908890832823
1 Inch of Water = 0.57803666922582 Ounce Force/Square Inch1 Inch of Water in Ounce Force/Square Inch is equal to 0.57803666922582
1 Inch of Water = 5.2 PSF1 Inch of Water in PSF is equal to 5.2
1 Inch of Water = 167.38 Poundal/Square Feet1 Inch of Water in Poundal/Square Feet is equal to 167.38
1 Inch of Water = 0.24908890832823 Sthene/Square Meter1 Inch of Water in Sthene/Square Meter is equal to 0.24908890832823
1 Inch of Water = 0.0025399999829527 Atmopshere [Technical]1 Inch of Water in Atmopshere [Technical] is equal to 0.0025399999829527
1 Inch of Water = 0.0023224752056932 Ton Force/Square Feet [Short]1 Inch of Water in Ton Force/Square Feet [Short] is equal to 0.0023224752056932
1 Inch of Water = 0.0026011722303764 Ton Force/Square Feet [Long]1 Inch of Water in Ton Force/Square Feet [Long] is equal to 0.0026011722303764
1 Inch of Water = 0.000016128255279738 Ton Force/Square Inch [Short]1 Inch of Water in Ton Force/Square Inch [Short] is equal to 0.000016128255279738
1 Inch of Water = 0.000018063645913307 Ton Force/Square Inch [Long]1 Inch of Water in Ton Force/Square Inch [Long] is equal to 0.000018063645913307
1 Inch of Water = 0.025399999829527 Ton Force/Square Meter1 Inch of Water in Ton Force/Square Meter is equal to 0.025399999829527
1 Inch of Water = 2.54 Water Column [Centimeter]1 Inch of Water in Water Column [Centimeter] is equal to 2.54
1 Inch of Water = 1 Water Column [Inch]1 Inch of Water in Water Column [Inch] is equal to 1
1 Inch of Water = 25.4 Water Column [Millimeter]1 Inch of Water in Water Column [Millimeter] is equal to 25.4
1 Inch of Water = 0.024908890832823 Newton/Square Centimeter1 Inch of Water in Newton/Square Centimeter is equal to 0.024908890832823
1 Inch of Water = 0.000036127291759729 KSI1 Inch of Water in KSI is equal to 0.000036127291759729
1 Inch of Water = 0.036127291759729 Pound Force/Square Inch1 Inch of Water in Pound Force/Square Inch is equal to 0.036127291759729
1 Inch of Water = 3.6127291759729e-8 Megapound/Square Inch1 Inch of Water in Megapound/Square Inch is equal to 3.6127291759729e-8
1 Inch of Water = 46.82 Pound Force/Square Yard1 Inch of Water in Pound Force/Square Yard is equal to 46.82
1 Inch of Water = 0.046820970117867 Kip/Square Yard1 Inch of Water in Kip/Square Yard is equal to 0.046820970117867

Convert Inch of Water to Other Pressure Units

Inch of Water to Atmosphere

Inch of Water to Attobar

Inch of Water to Attopascal

Inch of Water to Bar

Inch of Water to Barad

Inch of Water to Barye

Inch of Water to Centibar

Inch of Water to Centipascal

Inch of Water to Centitorr

Inch of Water to Centimeter of Water

Inch of Water to Centimeter of Mercury

Inch of Water to Decibar

Inch of Water to Decipascal

Inch of Water to Dekabar

Inch of Water to Dekapascal

Inch of Water to Exabar

Inch of Water to Exapascal

Inch of Water to Femtobar

Inch of Water to Femtopascal

Inch of Water to Feet of Mercury

Inch of Water to Feet of Water

Inch of Water to Gigabar

Inch of Water to Gigapascal

Inch of Water to Hectobar

Inch of Water to Hectopascal

Inch of Water to Inch of Mercury

Inch of Water to Kilobar

Inch of Water to Kilopascal

Inch of Water to Megabar

Inch of Water to Megapascal

Inch of Water to Microbar

Inch of Water to Micropascal

Inch of Water to Millibar

Inch of Water to Millipascal

Inch of Water to Millitorr

Inch of Water to Millimeter of Mercury

Inch of Water to Millimeter of Water

Inch of Water to Nanobar

Inch of Water to Nanopascal

Inch of Water to Pascal

Inch of Water to Petabar

Inch of Water to Petapascal

Inch of Water to Picobar

Inch of Water to Picopascal

Inch of Water to Pieze

Inch of Water to PSI

Inch of Water to Terabar

Inch of Water to Terapascal

Inch of Water to Torr

Inch of Water to Yoctobar

Inch of Water to Yoctopascal

Inch of Water to Yottabar

Inch of Water to Yottapascal

Inch of Water to Zeptobar

Inch of Water to Zeptopascal

Inch of Water to Zettabar

Inch of Water to Zettapascal

Inch of Water to CentiHg

Inch of Water to Decitorr

Inch of Water to Dyne/Square Centimeter

Inch of Water to Feet of Air [0 °C]

Inch of Water to Feet of Air [15 °C]

Inch of Water to Feet of Head

Inch of Water to Gram Force/Square Centimeter

Inch of Water to Inch of Air [0 °C]

Inch of Water to Inch of Air [15 °C]

Inch of Water to Kilogram Force/Square Centimeter

Inch of Water to Kilogram Force/Square Meter

Inch of Water to Kilogram Force/Square Millimeter

Inch of Water to Kilonewton/Square Meter

Inch of Water to Kilopond/Square Centimeter

Inch of Water to Kilopond/Square Meter

Inch of Water to Kilopond/Square Millimeter

Inch of Water to Kip/Square Feet

Inch of Water to KSF

Inch of Water to Kip/Square Inch

Inch of Water to Meganewton/Square Meter

Inch of Water to Meter of Air [0 °C]

Inch of Water to Meter of Air [15 °C]

Inch of Water to Meter of Head

Inch of Water to Micrometer Hg

Inch of Water to Micrometer H2O

Inch of Water to Micron Hg

Inch of Water to MilliHg

Inch of Water to Newton/Square Meter

Inch of Water to Newton/Square Millimeter

Inch of Water to Ounce Force/Square Inch

Inch of Water to PSF

Inch of Water to Poundal/Square Feet

Inch of Water to Sthene/Square Meter

Inch of Water to Atmopshere [Technical]

Inch of Water to Ton Force/Square Feet [Short]

Inch of Water to Ton Force/Square Feet [Long]

Inch of Water to Ton Force/Square Inch [Short]

Inch of Water to Ton Force/Square Inch [Long]

Inch of Water to Ton Force/Square Meter

Inch of Water to Water Column [Centimeter]

Inch of Water to Water Column [Inch]

Inch of Water to Water Column [Millimeter]

Inch of Water to Newton/Square Centimeter

Inch of Water to KSI

Inch of Water to Pound Force/Square Inch

Inch of Water to Megapound/Square Inch

Inch of Water to Pound Force/Square Yard

Inch of Water to Kip/Square Yard

Disclaimer | TOS | Privacy Policy | Contact Us

Copyright@2026