Inches of Water (inH₂O)	Pascals (Pa)
1 inH₂O	249.0889 Pa
2 inH₂O	498.1778 Pa
5 inH₂O	1245.44 Pa
10 inH₂O	2490.89 Pa
25 inH₂O	6227.22 Pa
50 inH₂O	12454.45 Pa
100 inH₂O	24908.89 Pa
250 inH₂O	62272.23 Pa
500 inH₂O	124544.46 Pa
1000 inH₂O	249088.91 Pa

Convert Inches of Water to Pascals

Convert inches of water to pascals (inH₂O to Pa) with our instant calculator. 1 inH₂O = 249.08891 Pa. Includes exact formula and reference tables.

How to Convert Inches of Water to Pascals (inH₂O to Pa)

1 Inch of Water (inH₂O) is equal to 249.08891 Pascals (Pa). Multiply the inch of water value by 249.08891

Quick Answer 1 inH₂O = 249.08891 Pa

Formula Pa = inH₂O × 249.08891

Inverse Factor 1 Pa = 0.004015 inH₂O

Unit Definitions & Metrology Context

The SI unit of pressure is the pascal (Pa). Standard sea-level atmosphere is defined as 101,325 Pa (1.01325 bar or ~14.696 psi).

About Inches of Water (inH₂O): Inch of Water (inH₂O) is a unit in the Pressure measurement category. It is widely used in hvac duct & fan static pressure. Relative to the pressure base unit, 1 inH₂O equals 249.08891 Pascals (Pa).

About Pascals (Pa): Pascal (Pa) is a unit in the Pressure measurement category. It is widely used in base si unit (n/m²). The pascal (Pa) serves as the primary reference base unit for the pressure domain.

Need to convert in the opposite direction? Visit our Convert Pascals to Inches of Water (Pa to inH₂O) calculator (1 Pa = 0.004015 inH₂O).

Step-by-Step Worked Examples (inH₂O to Pa)

Convert 5 Inches of Water to Pascals: Applying the formula (Pa = inH₂O × 249.08891): starting with 5 inH₂O, multiply the inch of water value by 249.08891 to get 1245.4445 Pa.
Convert 10 Inches of Water to Pascals: Applying the formula (Pa = inH₂O × 249.08891): starting with 10 inH₂O, multiply the inch of water value by 249.08891 to get 2490.8891 Pa.
Convert 50 Inches of Water to Pascals: Applying the formula (Pa = inH₂O × 249.08891): starting with 50 inH₂O, multiply the inch of water value by 249.08891 to get 12454.4455 Pa.

Popular Pressure Conversions

Pound per Square Inch ⇄ Bar

Multiply PSI by ~0.0689476 to convert to bar.

Bar ⇄ Pound per Square Inch

Multiply bar by ~14.5038 to find pressure in pounds per square inch (PSI).

Kilopascal ⇄ Pound per Square Inch

1 PSI equals approximately 6.89476 kilopascals (kPa).

Standard Atmosphere ⇄ Pound per Square Inch

1 standard atmosphere equals approximately 14.6959 PSI.

Frequently Asked Questions

Verified answers and formulas for converting inches of water to pascals.

How many pascals are in 1 inch of water?

There are 249.08891 pascals (Pa) in 1 inch of water (inH₂O). Conversely, 1 pascal equals 0.004015 inches of water.

How do you convert inches of water to pascals?

To convert inches of water (inH₂O) to pascals (Pa), use the formula: Pa = inH₂O × 249.08891. Multiply the inch of water value by 249.08891. For example, 10 inH₂O equals 2490.8891 Pa.

How do I convert back from pascals to inches of water?

To convert in the reverse direction from pascals (Pa) to inches of water (inH₂O), use the inverse formula: inH₂O = Pa × 0.00401463076. Multiply the pascal value by 0.00401463076 (1 Pa = 0.004015 inH₂O).

What is the difference between inch of water (inH₂O) and pascal (Pa)?

Both inch of water and pascal measure pressure. Inch of Water (inH₂O) is a unit in the Pressure measurement category. It is widely used in hvac duct & fan static pressure. Relative to the pressure base unit, 1 inH₂O equals 249.08891 Pascals (Pa). Pascal (Pa) is a unit in the Pressure measurement category. It is widely used in base si unit (n/m²). The pascal (Pa) serves as the primary reference base unit for the pressure domain.

How many PSI is in 1 bar?

1 bar equals approximately 14.5038 PSI. For car tires, 2.2 bar is roughly 32 PSI.