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inH2O to mmH2O, mbar, psi and mmHg Conversion Table

Look up a low pressure in inches of water column to find the conversion value in millimetres of water, millibar, pounds per square inch or millimetres of mercury.

Alternatively you can use the pressure unit converter to calculate the equivalent inches of water gauge value in other units.

The mmHg pressure units shown below are for mercury at 0°C, (32°F). The inH2O and mmH2O pressure units shown below are for water at 4°C (39.2°F).



inH2O Conversion Table

0.1 inH2O, inWC or inWG equals 2.54 mmH2O 0.249 mbar 0.004 psi 0.187 mmHg
0.2 inH2O, inWC or inWG equals 5.08 mmH2O 0.498 mbar 0.007 psi 0.374 mmHg
0.3 inH2O, inWC or inWG equals 7.62 mmH2O 0.747 mbar 0.011 psi 0.560 mmHg
0.4 inH2O, inWC or inWG equals 10.16 mmH2O 0.996 mbar 0.014 psi 0.747 mmHg
0.5 inH2O, inWC or inWG equals 12.70 mmH2O 1.245 mbar 0.018 psi 0.934 mmHg
0.6 inH2O, inWC or inWG equals 15.24 mmH2O 1.495 mbar 0.022 psi 1.121 mmHg
0.7 inH2O, inWC or inWG equals 17.78 mmH2O 1.744 mbar 0.025 psi 1.308 mmHg
0.8 inH2O, inWC or inWG equals 20.32 mmH2O 1.993 mbar 0.029 psi 1.495 mmHg
0.9 inH2O, inWC or inWG equals 22.86 mmH2O 2.242 mbar 0.033 psi 1.681 mmHg
1 inH2O, inWC or inWG equals 25.40 mmH2O 2.491 mbar 0.036 psi 1.868 mmHg
2 inH2O, inWC or inWG equals 50.80 mmH2O 4.982 mbar 0.072 psi 3.737 mmHg
3 inH2O, inWC or inWG equals 76.20 mmH2O 7.473 mbar 0.108 psi 5.605 mmHg
4 inH2O, inWC or inWG equals 101.6 mmH2O 9.964 mbar 0.145 psi 7.473 mmHg
5 inH2O, inWC or inWG equals 127.0 mmH2O 12.45 mbar 0.181 psi 9.342 mmHg
6 inH2O, inWC or inWG equals 152.4 mmH2O 14.95 mbar 0.217 psi 11.21 mmHg
7 inH2O, inWC or inWG equals 177.8 mmH2O 17.44 mbar 0.253 psi 13.08 mmHg
8 inH2O, inWC or inWG equals 203.2 mmH2O 19.93 mbar 0.289 psi 14.95 mmHg
9 inH2O, inWC or inWG equals 228.6 mmH2O 22.42 mbar 0.325 psi 16.81 mmHg
10 inH2O, inWC or inWG equals 254.0 mmH2O 24.91 mbar 0.361 psi 18.68 mmHg
11 inH2O, inWC or inWG equals 279.4 mmH2O 27.40 mbar 0.397 psi 20.55 mmHg
12 inH2O, inWC or inWG equals 304.8 mmH2O 29.89 mbar 0.434 psi 22.42 mmHg
13 inH2O, inWC or inWG equals 330.2 mmH2O 32.38 mbar 0.470 psi 24.29 mmHg
14 inH2O, inWC or inWG equals 355.6 mmH2O 34.87 mbar 0.506 psi 26.16 mmHg
15 inH2O, inWC or inWG equals 381.0 mmH2O 37.36 mbar 0.542 psi 28.02 mmHg
16 inH2O, inWC or inWG equals 406.4 mmH2O 39.85 mbar 0.578 psi 29.89 mmHg
17 inH2O, inWC or inWG equals 431.8 mmH2O 42.35 mbar 0.614 psi 31.76 mmHg
18 inH2O, inWC or inWG equals 457.2 mmH2O 44.84 mbar 0.650 psi 33.63 mmHg
19 inH2O, inWC or inWG equals 482.6 mmH2O 47.33 mbar 0.686 psi 35.50 mmHg
20 inH2O, inWC or inWG equals 508.0 mmH2O 49.82 mbar 0.723 psi 37.37 mmHg
21 inH2O, inWC or inWG equals 533.4 mmH2O 52.31 mbar 0.759 psi 39.23 mmHg
22 inH2O, inWC or inWG equals 558.8 mmH2O 54.80 mbar 0.795 psi 41.10 mmHg
23 inH2O, inWC or inWG equals 584.2 mmH2O 57.29 mbar 0.831 psi 42.97 mmHg
24 inH2O, inWC or inWG equals 609.6 mmH2O 59.78 mbar 0.867 psi 44.84 mmHg
25 inH2O, inWC or inWG equals 635.0 mmH2O 62.27 mbar 0.903 psi 46.71 mmHg
26 inH2O, inWC or inWG equals 660.4 mmH2O 64.76 mbar 0.939 psi 48.58 mmHg
27 inH2O, inWC or inWG equals 685.8 mmH2O 67.25 mbar 0.975 psi 50.44 mmHg
28 inH2O, inWC or inWG equals 711.2 mmH2O 69.74 mbar 1.012 psi 52.31 mmHg
29 inH2O, inWC or inWG equals 736.6 mmH2O 72.24 mbar 1.048 psi 54.18 mmHg
30 inH2O, inWC or inWG equals 762.0 mmH2O 74.73 mbar 1.084 psi 56.05 mmHg
31 inH2O, inWC or inWG equals 787.4 mmH2O 77.22 mbar 1.120 psi 57.92 mmHg
32 inH2O, inWC or inWG equals 812.8 mmH2O 79.71 mbar 1.156 psi 59.79 mmHg
33 inH2O, inWC or inWG equals 838.2 mmH2O 82.20 mbar 1.192 psi 61.65 mmHg
34 inH2O, inWC or inWG equals 863.6 mmH2O 84.69 mbar 1.228 psi 63.52 mmHg
35 inH2O, inWC or inWG equals 889.0 mmH2O 87.18 mbar 1.264 psi 65.39 mmHg
36 inH2O, inWC or inWG equals 914.4 mmH2O 89.67 mbar 1.301 psi 67.26 mmHg
37 inH2O, inWC or inWG equals 939.8 mmH2O 92.16 mbar 1.337 psi 69.13 mmHg
38 inH2O, inWC or inWG equals 965.2 mmH2O 94.65 mbar 1.373 psi 71.00 mmHg
39 inH2O, inWC or inWG equals 990.6 mmH2O 97.14 mbar 1.409 psi 72.86 mmHg
40 inH2O, inWC or inWG equals 1016 mmH2O 99.64 mbar 1.445 psi 74.73 mmHg
41 inH2O, inWC or inWG equals 1041 mmH2O 102.1 mbar 1.481 psi 76.60 mmHg
42 inH2O, inWC or inWG equals 1067 mmH2O 104.6 mbar 1.517 psi 78.47 mmHg
43 inH2O, inWC or inWG equals 1092 mmH2O 107.1 mbar 1.553 psi 80.34 mmHg
44 inH2O, inWC or inWG equals 1118 mmH2O 109.6 mbar 1.590 psi 82.21 mmHg
45 inH2O, inWC or inWG equals 1143 mmH2O 112.1 mbar 1.626 psi 84.07 mmHg
46 inH2O, inWC or inWG equals 1168 mmH2O 114.6 mbar 1.662 psi 85.94 mmHg
47 inH2O, inWC or inWG equals 1194 mmH2O 117.1 mbar 1.698 psi 87.81 mmHg
48 inH2O, inWC or inWG equals 1219 mmH2O 119.6 mbar 1.734 psi 89.68 mmHg
49 inH2O, inWC or inWG equals 1245 mmH2O 122.1 mbar 1.770 psi 91.55 mmHg
50 inH2O, inWC or inWG equals 1270 mmH2O 124.5 mbar 1.806 psi 93.42 mmHg
51 inH2O, inWC or inWG equals 1295 mmH2O 127.0 mbar 1.842 psi 95.28 mmHg
52 inH2O, inWC or inWG equals 1321 mmH2O 129.5 mbar 1.879 psi 97.15 mmHg
53 inH2O, inWC or inWG equals 1346 mmH2O 132.0 mbar 1.915 psi 99.02 mmHg
54 inH2O, inWC or inWG equals 1372 mmH2O 134.5 mbar 1.951 psi 100.9 mmHg
55 inH2O, inWC or inWG equals 1397 mmH2O 137.0 mbar 1.987 psi 102.8 mmHg
56 inH2O, inWC or inWG equals 1422 mmH2O 139.5 mbar 2.023 psi 104.6 mmHg
57 inH2O, inWC or inWG equals 1448 mmH2O 142.0 mbar 2.059 psi 106.5 mmHg
58 inH2O, inWC or inWG equals 1473 mmH2O 144.5 mbar 2.095 psi 108.4 mmHg
59 inH2O, inWC or inWG equals 1499 mmH2O 147.0 mbar 2.132 psi 110.2 mmHg
60 inH2O, inWC or inWG equals 1524 mmH2O 149.5 mbar 2.168 psi 112.1 mmHg
61 inH2O, inWC or inWG equals 1549 mmH2O 151.9 mbar 2.204 psi 114.0 mmHg
62 inH2O, inWC or inWG equals 1575 mmH2O 154.4 mbar 2.240 psi 115.8 mmHg
63 inH2O, inWC or inWG equals 1600 mmH2O 156.9 mbar 2.276 psi 117.7 mmHg
64 inH2O, inWC or inWG equals 1626 mmH2O 159.4 mbar 2.312 psi 119.6 mmHg
65 inH2O, inWC or inWG equals 1651 mmH2O 161.9 mbar 2.348 psi 121.4 mmHg
66 inH2O, inWC or inWG equals 1676 mmH2O 164.4 mbar 2.384 psi 123.3 mmHg
67 inH2O, inWC or inWG equals 1702 mmH2O 166.9 mbar 2.421 psi 125.2 mmHg
68 inH2O, inWC or inWG equals 1727 mmH2O 169.4 mbar 2.457 psi 127.0 mmHg
69 inH2O, inWC or inWG equals 1753 mmH2O 171.9 mbar 2.493 psi 128.9 mmHg
70 inH2O, inWC or inWG equals 1778 mmH2O 174.4 mbar 2.529 psi 130.8 mmHg
71 inH2O, inWC or inWG equals 1803 mmH2O 176.9 mbar 2.565 psi 132.7 mmHg
72 inH2O, inWC or inWG equals 1829 mmH2O 179.3 mbar 2.601 psi 134.5 mmHg
73 inH2O, inWC or inWG equals 1854 mmH2O 181.8 mbar 2.637 psi 136.4 mmHg
74 inH2O, inWC or inWG equals 1880 mmH2O 184.3 mbar 2.673 psi 138.3 mmHg
75 inH2O, inWC or inWG equals 1905 mmH2O 186.8 mbar 2.710 psi 140.1 mmHg
76 inH2O, inWC or inWG equals 1930 mmH2O 189.3 mbar 2.746 psi 142.0 mmHg
77 inH2O, inWC or inWG equals 1956 mmH2O 191.8 mbar 2.782 psi 143.9 mmHg
78 inH2O, inWC or inWG equals 1981 mmH2O 194.3 mbar 2.818 psi 145.7 mmHg
79 inH2O, inWC or inWG equals 2007 mmH2O 196.8 mbar 2.854 psi 147.6 mmHg
80 inH2O, inWC or inWG equals 2032 mmH2O 199.3 mbar 2.890 psi 149.5 mmHg
81 inH2O, inWC or inWG equals 2057 mmH2O 201.8 mbar 2.926 psi 151.3 mmHg
82 inH2O, inWC or inWG equals 2083 mmH2O 204.3 mbar 2.962 psi 153.2 mmHg
83 inH2O, inWC or inWG equals 2108 mmH2O 206.7 mbar 2.999 psi 155.1 mmHg
84 inH2O, inWC or inWG equals 2134 mmH2O 209.2 mbar 3.035 psi 156.9 mmHg
85 inH2O, inWC or inWG equals 2159 mmH2O 211.7 mbar 3.071 psi 158.8 mmHg
86 inH2O, inWC or inWG equals 2184 mmH2O 214.2 mbar 3.107 psi 160.7 mmHg
87 inH2O, inWC or inWG equals 2210 mmH2O 216.7 mbar 3.143 psi 162.5 mmHg
88 inH2O, inWC or inWG equals 2235 mmH2O 219.2 mbar 3.179 psi 164.4 mmHg
89 inH2O, inWC or inWG equals 2261 mmH2O 221.7 mbar 3.215 psi 166.3 mmHg
90 inH2O, inWC or inWG equals 2286 mmH2O 224.2 mbar 3.251 psi 168.1 mmHg
91 inH2O, inWC or inWG equals 2311 mmH2O 226.7 mbar 3.288 psi 170.0 mmHg
92 inH2O, inWC or inWG equals 2337 mmH2O 229.2 mbar 3.324 psi 171.9 mmHg
93 inH2O, inWC or inWG equals 2362 mmH2O 231.7 mbar 3.360 psi 173.8 mmHg
94 inH2O, inWC or inWG equals 2388 mmH2O 234.1 mbar 3.396 psi 175.6 mmHg
95 inH2O, inWC or inWG equals 2413 mmH2O 236.6 mbar 3.432 psi 177.5 mmHg
96 inH2O, inWC or inWG equals 2438 mmH2O 239.1 mbar 3.468 psi 179.4 mmHg
97 inH2O, inWC or inWG equals 2464 mmH2O 241.6 mbar 3.504 psi 181.2 mmHg
98 inH2O, inWC or inWG equals 2489 mmH2O 244.1 mbar 3.540 psi 183.1 mmHg
99 inH2O, inWC or inWG equals 2515 mmH2O 246.6 mbar 3.577 psi 185.0 mmHg
100 inH2O, inWC or inWG equals 2540 mmH2O 249.1 mbar 3.613 psi 186.8 mmHg
110 inH2O, inWC or inWG equals 2794 mmH2O 274.0 mbar 3.974 psi 205.5 mmHg
120 inH2O, inWC or inWG equals 3048 mmH2O 298.9 mbar 4.335 psi 224.2 mmHg
130 inH2O, inWC or inWG equals 3302 mmH2O 323.8 mbar 4.697 psi 242.9 mmHg
140 inH2O, inWC or inWG equals 3556 mmH2O 348.7 mbar 5.058 psi 261.6 mmHg
150 inH2O, inWC or inWG equals 3810 mmH2O 373.6 mbar 5.419 psi 280.2 mmHg
160 inH2O, inWC or inWG equals 4064 mmH2O 398.5 mbar 5.780 psi 298.9 mmHg
170 inH2O, inWC or inWG equals 4318 mmH2O 423.5 mbar 6.142 psi 317.6 mmHg
180 inH2O, inWC or inWG equals 4572 mmH2O 448.4 mbar 6.503 psi 336.3 mmHg
190 inH2O, inWC or inWG equals 4826 mmH2O 473.3 mbar 6.864 psi 355.0 mmHg
200 inH2O, inWC or inWG equals 5080 mmH2O 498.2 mbar 7.225 psi 373.7 mmHg
210 inH2O, inWC or inWG equals 5334 mmH2O 523.1 mbar 7.587 psi 392.3 mmHg
220 inH2O, inWC or inWG equals 5588 mmH2O 548.0 mbar 7.948 psi 411.0 mmHg
230 inH2O, inWC or inWG equals 5842 mmH2O 572.9 mbar 8.309 psi 429.7 mmHg
240 inH2O, inWC or inWG equals 6096 mmH2O 597.8 mbar 8.671 psi 448.4 mmHg
250 inH2O, inWC or inWG equals 6350 mmH2O 622.7 mbar 9.032 psi 467.1 mmHg
260 inH2O, inWC or inWG equals 6604 mmH2O 647.6 mbar 9.393 psi 485.8 mmHg
270 inH2O, inWC or inWG equals 6858 mmH2O 672.5 mbar 9.754 psi 504.4 mmHg
280 inH2O, inWC or inWG equals 7112 mmH2O 697.4 mbar 10.12 psi 523.1 mmHg
290 inH2O, inWC or inWG equals 7366 mmH2O 722.4 mbar 10.48 psi 541.8 mmHg
300 inH2O, inWC or inWG equals 7620 mmH2O 747.3 mbar 10.84 psi 560.5 mmHg
310 inH2O, inWC or inWG equals 7874 mmH2O 772.2 mbar 11.20 psi 579.2 mmHg
320 inH2O, inWC or inWG equals 8128 mmH2O 797.1 mbar 11.56 psi 597.9 mmHg
330 inH2O, inWC or inWG equals 8382 mmH2O 822.0 mbar 11.92 psi 616.5 mmHg
340 inH2O, inWC or inWG equals 8636 mmH2O 846.9 mbar 12.28 psi 635.2 mmHg
350 inH2O, inWC or inWG equals 8890 mmH2O 871.8 mbar 12.64 psi 653.9 mmHg
360 inH2O, inWC or inWG equals 9144 mmH2O 896.7 mbar 13.01 psi 672.6 mmHg
370 inH2O, inWC or inWG equals 9398 mmH2O 921.6 mbar 13.37 psi 691.3 mmHg
380 inH2O, inWC or inWG equals 9652 mmH2O 946.5 mbar 13.73 psi 710.0 mmHg
390 inH2O, inWC or inWG equals 9906 mmH2O 971.4 mbar 14.09 psi 728.6 mmHg
400 inH2O, inWC or inWG equals 10160 mmH2O 996.4 mbar 14.45 psi 747.3 mmHg

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