Inch of water Converter
Created by: tinycalcs.com/en
Number of supported units: 31
Last update: 2026
The Inch of water Converter supports 31 different pressure units. This makes it possible to convert freely between inches of water [inH₂O], American, metric, and other pressure units. All values are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of inches of water
In order to convert inches of water [inH₂O] into another printing unit, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for inches of water [inH₂O] to be queried directly from the conversion table.
Determine conversion factor
Conversion between inches of water and millibar
A quick and precise conversion between inches of water [inH₂O] and millibar [mbar] is straightforward and requires only multiplication or division by 2.4884. The conversion from inches of water [inH₂O] to millibar [mbar] is done by multiplying the value in inches of water [inH₂O] by 2.4884. To reverse the conversion, divide the value in millibar [mbar] by 2.4884 to obtain inches of water [inH₂O].
- Millibar [mbar] = inches of water [inH₂O] * 2.4884
- Inches of water [inH₂O] = millibar [mbar] ÷ 2.4884
Conversion between inches of water and bar
You can easily convert between bar [bar] and inches of water [inH₂O] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Inches of water [inH₂O] = bar [bar] ÷ 248.84 * 105
- Bar [bar] = inches of water [inH₂O] * 248.84 ÷ 105
Conversion between inches of water and psi
The fastest and easiest way to convert between psi [psi] and inches of water [inH₂O] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Inches of water [inH₂O] = psi [psi] ÷ 1,605.416144 * 4,535.9237 * 9.80665
- Psi [psi] = inches of water [inH₂O] * 1,605.416144 ÷ 4,535.9237 ÷ 9.80665
Conversion between inches of water and pascals
Conversions between inches of water [inH₂O] and pascals [Pa] are straightforward and can be performed with simple math. The required conversion factor is 248.84. To convert a value from inches of water [inH₂O] to pascals [Pa], multiply the number of inches of water [inH₂O] by 248.84. For values in pascals [Pa], divide by 248.84 to get the equivalent in inches of water [inH₂O].
- Pascals [Pa] = inches of water [inH₂O] * 248.84
- Inches of water [inH₂O] = pascals [Pa] ÷ 248.84
Conversion between inches of water and kilograms per square meter
The two formulas below provide an easy way to convert between kilograms per square meter [kg/m²] and inches of water [inH₂O]. To ensure precise conversion results, it is important to follow the correct order of math operations.
- Inches of water [inH₂O] = kilograms per square meter [kg/m²] ÷ 248.84 * 9.80665
- Kilograms per square meter [kg/m²] = inches of water [inH₂O] * 248.84 ÷ 9.80665
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