Inches of Water (inH₂O)	Megapascals (MPa)
1 inH₂O	0.0002491 MPa
2 inH₂O	0.0004982 MPa
5 inH₂O	0.001245 MPa
10 inH₂O	0.002491 MPa
25 inH₂O	0.006227 MPa
50 inH₂O	0.01245 MPa
100 inH₂O	0.02491 MPa
250 inH₂O	0.06227 MPa
500 inH₂O	0.1245 MPa
1000 inH₂O	0.2491 MPa

Convert Inches of Water to Megapascals

Convert inches of water to megapascals (inH₂O to MPa) with our instant calculator. 1 inH₂O = 0.000249 MPa. Includes exact formula and reference tables.

How to Convert Inches of Water to Megapascals (inH₂O to MPa)

1 Inch of Water (inH₂O) is equal to 0.000249 Megapascals (MPa). Multiply the inch of water value by 0.00024908891

Quick Answer 1 inH₂O = 0.000249 MPa

Formula MPa = inH₂O × 0.00024908891

Inverse Factor 1 MPa = 4014.63076 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 Megapascals (MPa): Megapascal (MPa) is a unit in the Pressure measurement category. It is widely used in megapascals (materials engineering). Relative to the pressure base unit, 1 MPa equals 1000000 Pascals (Pa).

Need to convert in the opposite direction? Visit our Convert Megapascals to Inches of Water (MPa to inH₂O) calculator (1 MPa = 4014.63076 inH₂O).

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

Convert 5 Inches of Water to Megapascals: Applying the formula (MPa = inH₂O × 0.00024908891): starting with 5 inH₂O, multiply the inch of water value by 0.00024908891 to get 0.0012 MPa.
Convert 10 Inches of Water to Megapascals: Applying the formula (MPa = inH₂O × 0.00024908891): starting with 10 inH₂O, multiply the inch of water value by 0.00024908891 to get 0.0025 MPa.
Convert 50 Inches of Water to Megapascals: Applying the formula (MPa = inH₂O × 0.00024908891): starting with 50 inH₂O, multiply the inch of water value by 0.00024908891 to get 0.0125 MPa.

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 megapascals.

How many megapascals are in 1 inch of water?

There are 0.000249 megapascals (MPa) in 1 inch of water (inH₂O). Conversely, 1 megapascal equals 4014.63076 inches of water.

How do you convert inches of water to megapascals?

To convert inches of water (inH₂O) to megapascals (MPa), use the formula: MPa = inH₂O × 0.00024908891. Multiply the inch of water value by 0.00024908891. For example, 10 inH₂O equals 0.0025 MPa.

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

To convert in the reverse direction from megapascals (MPa) to inches of water (inH₂O), use the inverse formula: inH₂O = MPa × 4014.63076. Multiply the megapascal value by 4014.63076 (1 MPa = 4014.63076 inH₂O).

What is the difference between inch of water (inH₂O) and megapascal (MPa)?

Both inch of water and megapascal 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). Megapascal (MPa) is a unit in the Pressure measurement category. It is widely used in megapascals (materials engineering). Relative to the pressure base unit, 1 MPa equals 1000000 Pascals (Pa).

How many PSI is in 1 bar?

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