Kilopascals (kPa)	Inches of Water (inH₂O)
1 kPa	4.0146 inH₂O
2 kPa	8.0293 inH₂O
5 kPa	20.0732 inH₂O
10 kPa	40.1463 inH₂O
25 kPa	100.3658 inH₂O
50 kPa	200.7315 inH₂O
100 kPa	401.4631 inH₂O
250 kPa	1003.66 inH₂O
500 kPa	2007.32 inH₂O
1000 kPa	4014.63 inH₂O

Convert Kilopascals to Inches of Water

Convert kilopascals to inches of water (kPa to inH₂O) with our instant calculator. 1 kPa = 4.014631 inH₂O. Includes exact formula and reference tables.

How to Convert Kilopascals to Inches of Water (kPa to inH₂O)

1 Kilopascal (kPa) is equal to 4.014631 Inches of Water (inH₂O). Multiply the kilopascal value by 4.01463076

Quick Answer 1 kPa = 4.014631 inH₂O

Formula inH₂O = kPa × 4.01463076

Inverse Factor 1 inH₂O = 0.249089 kPa

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 Kilopascals (kPa): Kilopascal (kPa) is a unit in the Pressure measurement category. It is a standard everyday unit of pressure measurement. Relative to the pressure base unit, 1 kPa equals 1000 Pascals (Pa).

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).

Need to convert in the opposite direction? Visit our Convert Inches of Water to Kilopascals (inH₂O to kPa) calculator (1 inH₂O = 0.249089 kPa).

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

Convert 5 Kilopascals to Inches of Water: Applying the formula (inH₂O = kPa × 4.01463076): starting with 5 kPa, multiply the kilopascal value by 4.01463076 to get 20.0732 inH₂O.
Convert 10 Kilopascals to Inches of Water: Applying the formula (inH₂O = kPa × 4.01463076): starting with 10 kPa, multiply the kilopascal value by 4.01463076 to get 40.1463 inH₂O.
Convert 50 Kilopascals to Inches of Water: Applying the formula (inH₂O = kPa × 4.01463076): starting with 50 kPa, multiply the kilopascal value by 4.01463076 to get 200.7315 inH₂O.

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 kilopascals to inches of water.

How many inches of water are in 1 kilopascal?

There are 4.014631 inches of water (inH₂O) in 1 kilopascal (kPa). Conversely, 1 inch of water equals 0.249089 kilopascals.

How do you convert kilopascals to inches of water?

To convert kilopascals (kPa) to inches of water (inH₂O), use the formula: inH₂O = kPa × 4.01463076. Multiply the kilopascal value by 4.01463076. For example, 10 kPa equals 40.1463 inH₂O.

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

To convert in the reverse direction from inches of water (inH₂O) to kilopascals (kPa), use the inverse formula: kPa = inH₂O × 0.24908891. Multiply the inch of water value by 0.24908891 (1 inH₂O = 0.249089 kPa).

What is the difference between kilopascal (kPa) and inch of water (inH₂O)?

Both kilopascal and inch of water measure pressure. Kilopascal (kPa) is a unit in the Pressure measurement category. It is a standard everyday unit of pressure measurement. Relative to the pressure base unit, 1 kPa equals 1000 Pascals (Pa). 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).

How many PSI is in 1 bar?

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