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 low range pressure measurement products
- Wet wet DP sensor for 10 inches of water range
- Low range vacuum pressure logger for 0 to -60 inH2O g
- 1MPa, 10bar, 4000inH2O, 150psi, 1000kPa range pressure gauge
- 100 inches H2O pressure gauge
inH2O Conversion Table
inH2O | mmH2O | mbar | psi | mmHg |
---|---|---|---|---|
0.1 | 2.54 | 0.249 | 0.004 | 0.187 |
0.2 | 5.08 | 0.498 | 0.007 | 0.374 |
0.3 | 7.62 | 0.747 | 0.011 | 0.560 |
0.4 | 10.16 | 0.996 | 0.014 | 0.747 |
0.5 | 12.70 | 1.245 | 0.018 | 0.934 |
0.6 | 15.24 | 1.495 | 0.022 | 1.121 |
0.7 | 17.78 | 1.744 | 0.025 | 1.308 |
0.8 | 20.32 | 1.993 | 0.029 | 1.495 |
0.9 | 22.86 | 2.242 | 0.033 | 1.681 |
1 | 25.40 | 2.491 | 0.036 | 1.868 |
2 | 50.80 | 4.982 | 0.072 | 3.737 |
3 | 76.20 | 7.473 | 0.108 | 5.605 |
4 | 101.6 | 9.964 | 0.145 | 7.473 |
5 | 127.0 | 12.45 | 0.181 | 9.342 |
6 | 152.4 | 14.95 | 0.217 | 11.21 |
7 | 177.8 | 17.44 | 0.253 | 13.08 |
8 | 203.2 | 19.93 | 0.289 | 14.95 |
9 | 228.6 | 22.42 | 0.325 | 16.81 |
10 | 254.0 | 24.91 | 0.361 | 18.68 |
11 | 279.4 | 27.40 | 0.397 | 20.55 |
12 | 304.8 | 29.89 | 0.434 | 22.42 |
13 | 330.2 | 32.38 | 0.470 | 24.29 |
14 | 355.6 | 34.87 | 0.506 | 26.16 |
15 | 381.0 | 37.36 | 0.542 | 28.02 |
16 | 406.4 | 39.85 | 0.578 | 29.89 |
17 | 431.8 | 42.35 | 0.614 | 31.76 |
18 | 457.2 | 44.84 | 0.650 | 33.63 |
19 | 482.6 | 47.33 | 0.686 | 35.50 |
20 | 508.0 | 49.82 | 0.723 | 37.37 |
21 | 533.4 | 52.31 | 0.759 | 39.23 |
22 | 558.8 | 54.80 | 0.795 | 41.10 |
23 | 584.2 | 57.29 | 0.831 | 42.97 |
24 | 609.6 | 59.78 | 0.867 | 44.84 |
25 | 635.0 | 62.27 | 0.903 | 46.71 |
26 | 660.4 | 64.76 | 0.939 | 48.58 |
27 | 685.8 | 67.25 | 0.975 | 50.44 |
28 | 711.2 | 69.74 | 1.012 | 52.31 |
29 | 736.6 | 72.24 | 1.048 | 54.18 |
30 | 762.0 | 74.73 | 1.084 | 56.05 |
31 | 787.4 | 77.22 | 1.120 | 57.92 |
32 | 812.8 | 79.71 | 1.156 | 59.79 |
33 | 838.2 | 82.20 | 1.192 | 61.65 |
34 | 863.6 | 84.69 | 1.228 | 63.52 |
35 | 889.0 | 87.18 | 1.264 | 65.39 |
36 | 914.4 | 89.67 | 1.301 | 67.26 |
37 | 939.8 | 92.16 | 1.337 | 69.13 |
38 | 965.2 | 94.65 | 1.373 | 71.00 |
39 | 990.6 | 97.14 | 1.409 | 72.86 |
40 | 1016 | 99.64 | 1.445 | 74.73 |
41 | 1041 | 102.1 | 1.481 | 76.60 |
42 | 1067 | 104.6 | 1.517 | 78.47 |
43 | 1092 | 107.1 | 1.553 | 80.34 |
44 | 1118 | 109.6 | 1.590 | 82.21 |
45 | 1143 | 112.1 | 1.626 | 84.07 |
46 | 1168 | 114.6 | 1.662 | 85.94 |
47 | 1194 | 117.1 | 1.698 | 87.81 |
48 | 1219 | 119.6 | 1.734 | 89.68 |
49 | 1245 | 122.1 | 1.770 | 91.55 |
50 | 1270 | 124.5 | 1.806 | 93.42 |
51 | 1295 | 127.0 | 1.842 | 95.28 |
52 | 1321 | 129.5 | 1.879 | 97.15 |
53 | 1346 | 132.0 | 1.915 | 99.02 |
54 | 1372 | 134.5 | 1.951 | 100.9 |
55 | 1397 | 137.0 | 1.987 | 102.8 |
56 | 1422 | 139.5 | 2.023 | 104.6 |
57 | 1448 | 142.0 | 2.059 | 106.5 |
58 | 1473 | 144.5 | 2.095 | 108.4 |
59 | 1499 | 147.0 | 2.132 | 110.2 |
60 | 1524 | 149.5 | 2.168 | 112.1 |
61 | 1549 | 151.9 | 2.204 | 114.0 |
62 | 1575 | 154.4 | 2.240 | 115.8 |
63 | 1600 | 156.9 | 2.276 | 117.7 |
64 | 1626 | 159.4 | 2.312 | 119.6 |
65 | 1651 | 161.9 | 2.348 | 121.4 |
66 | 1676 | 164.4 | 2.384 | 123.3 |
67 | 1702 | 166.9 | 2.421 | 125.2 |
68 | 1727 | 169.4 | 2.457 | 127.0 |
69 | 1753 | 171.9 | 2.493 | 128.9 |
70 | 1778 | 174.4 | 2.529 | 130.8 |
71 | 1803 | 176.9 | 2.565 | 132.7 |
72 | 1829 | 179.3 | 2.601 | 134.5 |
73 | 1854 | 181.8 | 2.637 | 136.4 |
74 | 1880 | 184.3 | 2.673 | 138.3 |
75 | 1905 | 186.8 | 2.710 | 140.1 |
76 | 1930 | 189.3 | 2.746 | 142.0 |
77 | 1956 | 191.8 | 2.782 | 143.9 |
78 | 1981 | 194.3 | 2.818 | 145.7 |
79 | 2007 | 196.8 | 2.854 | 147.6 |
80 | 2032 | 199.3 | 2.890 | 149.5 |
81 | 2057 | 201.8 | 2.926 | 151.3 |
82 | 2083 | 204.3 | 2.962 | 153.2 |
83 | 2108 | 206.7 | 2.999 | 155.1 |
84 | 2134 | 209.2 | 3.035 | 156.9 |
85 | 2159 | 211.7 | 3.071 | 158.8 |
86 | 2184 | 214.2 | 3.107 | 160.7 |
87 | 2210 | 216.7 | 3.143 | 162.5 |
88 | 2235 | 219.2 | 3.179 | 164.4 |
89 | 2261 | 221.7 | 3.215 | 166.3 |
90 | 2286 | 224.2 | 3.251 | 168.1 |
91 | 2311 | 226.7 | 3.288 | 170.0 |
92 | 2337 | 229.2 | 3.324 | 171.9 |
93 | 2362 | 231.7 | 3.360 | 173.8 |
94 | 2388 | 234.1 | 3.396 | 175.6 |
95 | 2413 | 236.6 | 3.432 | 177.5 |
96 | 2438 | 239.1 | 3.468 | 179.4 |
97 | 2464 | 241.6 | 3.504 | 181.2 |
98 | 2489 | 244.1 | 3.540 | 183.1 |
99 | 2515 | 246.6 | 3.577 | 185.0 |
100 | 2540 | 249.1 | 3.613 | 186.8 |
110 | 2794 | 274.0 | 3.974 | 205.5 |
120 | 3048 | 298.9 | 4.335 | 224.2 |
130 | 3302 | 323.8 | 4.697 | 242.9 |
140 | 3556 | 348.7 | 5.058 | 261.6 |
150 | 3810 | 373.6 | 5.419 | 280.2 |
160 | 4064 | 398.5 | 5.780 | 298.9 |
170 | 4318 | 423.5 | 6.142 | 317.6 |
180 | 4572 | 448.4 | 6.503 | 336.3 |
190 | 4826 | 473.3 | 6.864 | 355.0 |
200 | 5080 | 498.2 | 7.225 | 373.7 |
210 | 5334 | 523.1 | 7.587 | 392.3 |
220 | 5588 | 548.0 | 7.948 | 411.0 |
230 | 5842 | 572.9 | 8.309 | 429.7 |
240 | 6096 | 597.8 | 8.671 | 448.4 |
250 | 6350 | 622.7 | 9.032 | 467.1 |
260 | 6604 | 647.6 | 9.393 | 485.8 |
270 | 6858 | 672.5 | 9.754 | 504.4 |
280 | 7112 | 697.4 | 10.12 | 523.1 |
290 | 7366 | 722.4 | 10.48 | 541.8 |
300 | 7620 | 747.3 | 10.84 | 560.5 |
310 | 7874 | 772.2 | 11.20 | 579.2 |
320 | 8128 | 797.1 | 11.56 | 597.9 |
330 | 8382 | 822.0 | 11.92 | 616.5 |
340 | 8636 | 846.9 | 12.28 | 635.2 |
350 | 8890 | 871.8 | 12.64 | 653.9 |
360 | 9144 | 896.7 | 13.01 | 672.6 |
370 | 9398 | 921.6 | 13.37 | 691.3 |
380 | 9652 | 946.5 | 13.73 | 710.0 |
390 | 9906 | 971.4 | 14.09 | 728.6 |
400 | 10160 | 996.4 | 14.45 | 747.3 |
To convert pressure from inH2O to a higher precision use this pressure unit converter.
inH2O low range pressure measurement products
- Seawater solution 60 inH2O hydrostatic pressure sensor for 190degF temperature
- 100 inches H2O pressure gauge
- -0.1 to +0.1 inH2O g range 4-20mA signal air pressure sensor and display for pharmaceutical manufacturing use
- 25 inH2Og range 4-20mA output natural gas pressure sensor for use in generator supply