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Pascal to Inches of Water Converter

Pa → inH₂O: type a value and the result appears instantly.

1 Pa = 0.00401463076 inH₂O
1 inH₂O = 249.08891 Pa
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How to convert pascal to inches of water

Use this formula:

inH₂O = Pa ÷ 249.08891

Examples

Pa to inH₂O conversion chart

pascal (Pa)inches of water (inH₂O)
0.1 Pa0.000401463 inH₂O
0.25 Pa0.00100366 inH₂O
0.5 Pa0.00200732 inH₂O
1 Pa0.00401463 inH₂O
2 Pa0.00802926 inH₂O
3 Pa0.0120439 inH₂O
4 Pa0.0160585 inH₂O
5 Pa0.0200732 inH₂O
6 Pa0.0240878 inH₂O
7 Pa0.0281024 inH₂O
8 Pa0.032117 inH₂O
9 Pa0.0361317 inH₂O
10 Pa0.0401463 inH₂O
12 Pa0.0481756 inH₂O
15 Pa0.0602195 inH₂O
20 Pa0.0802926 inH₂O
25 Pa0.100366 inH₂O
30 Pa0.120439 inH₂O
40 Pa0.160585 inH₂O
50 Pa0.200732 inH₂O
60 Pa0.240878 inH₂O
70 Pa0.281024 inH₂O
75 Pa0.301097 inH₂O
80 Pa0.32117 inH₂O
90 Pa0.361317 inH₂O
100 Pa0.401463 inH₂O
150 Pa0.602195 inH₂O
200 Pa0.802926 inH₂O
250 Pa1.00366 inH₂O
500 Pa2.00732 inH₂O
1,000 Pa4.01463 inH₂O

About the units

Pascal (Pa) is a metric (SI) unit. 1 Pa = 0.01 hPa.

Inch of water (inH₂O) is a US customary / imperial unit. 1 inH₂O = 249.08891 Pa.

Frequently asked questions

How do I convert pascal to inches of water?
Divide the value in Pa by 249.08891.
How many inches of water are in 1 pascal?
1 Pa = 0.00401463076 inH₂O.
What is 12 Pa in inH₂O?
12 Pa = 0.0481756 inH₂O.
How do I convert inches of water to pascal?
Use the reverse converter: inH₂O → Pa.

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Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters