centimeter of water (4 °C) | 1 cmH2O | 2 cmH2O | 3 cmH2O | 4 cmH2O | 5 cmH2O | 6 cmH2O | 7 cmH2O | 8 cmH2O | 9 cmH2O | 10 cmH2O | 11 cmH2O | 12 cmH2O | 13 cmH2O | 14 cmH2O | 15 cmH2O | 16 cmH2O | 17 cmH2O | 18 cmH2O | 19 cmH2O | 20 cmH2O | 21 cmH2O | 22 cmH2O | 23 cmH2O | 24 cmH2O | 25 cmH2O | 26 cmH2O | 27 cmH2O | 28 cmH2O | 29 cmH2O | 30 cmH2O | 31 cmH2O | 32 cmH2O | 33 cmH2O | 34 cmH2O | 35 cmH2O | 36 cmH2O | 37 cmH2O | 38 cmH2O | 39 cmH2O | 40 cmH2O | 41 cmH2O | 42 cmH2O | 43 cmH2O | 44 cmH2O | 45 cmH2O | 46 cmH2O | 47 cmH2O | 48 cmH2O | 49 cmH2O | 50 cmH2O | 51 cmH2O | 52 cmH2O | 53 cmH2O | 54 cmH2O | 55 cmH2O | 56 cmH2O | 57 cmH2O | 58 cmH2O | 59 cmH2O | 60 cmH2O | 61 cmH2O | 62 cmH2O | 63 cmH2O | 64 cmH2O | 65 cmH2O | 66 cmH2O | 67 cmH2O | 68 cmH2O | 69 cmH2O | 70 cmH2O | 71 cmH2O | 72 cmH2O | 73 cmH2O | 74 cmH2O | 75 cmH2O | 76 cmH2O | 77 cmH2O | 78 cmH2O | 79 cmH2O | 80 cmH2O | 81 cmH2O | 82 cmH2O | 83 cmH2O | 84 cmH2O | 85 cmH2O | 86 cmH2O | 87 cmH2O | 88 cmH2O | 89 cmH2O | 90 cmH2O | 91 cmH2O | 92 cmH2O | 93 cmH2O | 94 cmH2O | 95 cmH2O | 96 cmH2O | 97 cmH2O | 98 cmH2O | 99 cmH2O | 100 cmH2O |
millipascal | 98,063.8 mPa | 196,127.6 mPa | 294,191.4 mPa | 392,255.2 mPa | 490 319 mPa | 588,382.8 mPa | 686,446.6 mPa | 784,510.4 mPa | 882,574.2 mPa | 980 638 mPa | 1,078,701.8 mPa | 1,176,765.6 mPa | 1,274,829.4 mPa | 1,372,893.2 mPa | 1 470 957 mPa | 1,569,020.8 mPa | 1,667,084.6 mPa | 1,765,148.4 mPa | 1,863,212.2 mPa | 1 961 276 mPa | 2,059,339.8 mPa | 2,157,403.6 mPa | 2,255,467.4 mPa | 2,353,531.2 mPa | 2 451 595 mPa | 2,549,658.8 mPa | 2,647,722.6 mPa | 2,745,786.4 mPa | 2,843,850.2 mPa | 2 941 914 mPa | 3,039,977.8 mPa | 3,138,041.6 mPa | 3,236,105.4 mPa | 3,334,169.2 mPa | 3 432 233 mPa | 3,530,296.8 mPa | 3,628,360.6 mPa | 3,726,424.4 mPa | 3,824,488.2 mPa | 3 922 552 mPa | 4,020,615.8 mPa | 4,118,679.6 mPa | 4,216,743.4 mPa | 4,314,807.2 mPa | 4 412 871 mPa | 4,510,934.8 mPa | 4,608,998.6 mPa | 4,707,062.4 mPa | 4,805,126.2 mPa | 4 903 190 mPa | 5,001,253.8 mPa | 5,099,317.6 mPa | 5,197,381.4 mPa | 5,295,445.2 mPa | 5 393 509 mPa | 5,491,572.8 mPa | 5,589,636.6 mPa | 5,687,700.4 mPa | 5,785,764.2 mPa | 5 883 828 mPa | 5,981,891.8 mPa | 6,079,955.6 mPa | 6,178,019.4 mPa | 6,276,083.2 mPa | 6 374 147 mPa | 6,472,210.8 mPa | 6,570,274.6 mPa | 6,668,338.4 mPa | 6,766,402.2 mPa | 6 864 466 mPa | 6,962,529.8 mPa | 7,060,593.6 mPa | 7,158,657.4 mPa | 7,256,721.2 mPa | 7 354 785 mPa | 7,452,848.8 mPa | 7,550,912.6 mPa | 7,648,976.4 mPa | 7,747,040.2 mPa | 7 845 104 mPa | 7,943,167.8 mPa | 8,041,231.6 mPa | 8,139,295.4 mPa | 8,237,359.2 mPa | 8 335 423 mPa | 8,433,486.8 mPa | 8,531,550.6 mPa | 8,629,614.4 mPa | 8,727,678.2 mPa | 8 825 742 mPa | 8,923,805.8 mPa | 9,021,869.6 mPa | 9,119,933.4 mPa | 9,217,997.2 mPa | 9 316 061 mPa | 9,414,124.8 mPa | 9,512,188.6 mPa | 9,610,252.4 mPa | 9,708,316.2 mPa | 9 806 380 mPa |
A centimetre of water (US spelling centimeter of water, abbreviated cm H2O or cm H2O) is a less commonly used unit of pressure derived from pressure head calculations using metrology.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centimeter of water (4 °C) | cmH2O | ≈ 999.972 kg/m3 × 1 cm × ɡ0 | ≈ 98.0638 Pa | Metric system SI |
centimeter of water (4 °C) | millipascals | centimeter of water (4 °C) | millipascals |
---|---|---|---|
1 | ≈ 98063.8 | 6 | ≈ 588382.8 |
2 | ≈ 196127.6 | 7 | ≈ 686446.6 |
3 | ≈ 294191.4 | 8 | ≈ 784510.4 |
4 | ≈ 392255.2 | 9 | ≈ 882574.2 |
5 | ≈ 490319 | 10 | ≈ 980638 |
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
millipascal | mPa | = 1 × 10-3 pascals | = 0.001 pascals | Metric system SI |
millipascals | centimeter of water (4 °C) | millipascals | centimeter of water (4 °C) |
---|---|---|---|
1 | ≈ 1.0197442889221E-5 | 6 | ≈ 6.1184657335327E-5 |
2 | ≈ 2.0394885778442E-5 | 7 | ≈ 7.1382100224548E-5 |
3 | ≈ 3.0592328667663E-5 | 8 | ≈ 8.1579543113769E-5 |
4 | ≈ 4.0789771556884E-5 | 9 | ≈ 9.177698600299E-5 |
5 | ≈ 5.0987214446105E-5 | 10 | ≈ 0.00010197442889221 |
centimeter of water (4 °C) | millipascals |
---|---|
1 | ≈ 98,063.8 |
1.0197442889221 × 10-5 | ≈ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |