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 |
pascal | 98.0638 Pa | 196.1276 Pa | 294.1914 Pa | 392.2552 Pa | 490.319 Pa | 588.3828 Pa | 686.4466 Pa | 784.5104 Pa | 882.5742 Pa | 980.638 Pa | 1,078.7018 Pa | 1,176.7656 Pa | 1,274.8294 Pa | 1,372.8932 Pa | 1,470.957 Pa | 1,569.0208 Pa | 1,667.0846 Pa | 1,765.1484 Pa | 1,863.2122 Pa | 1,961.276 Pa | 2,059.3398 Pa | 2,157.4036 Pa | 2,255.4674 Pa | 2,353.5312 Pa | 2,451.595 Pa | 2,549.6588 Pa | 2,647.7226 Pa | 2,745.7864 Pa | 2,843.8502 Pa | 2,941.914 Pa | 3,039.9778 Pa | 3,138.0416 Pa | 3,236.1054 Pa | 3,334.1692 Pa | 3,432.233 Pa | 3,530.2968 Pa | 3,628.3606 Pa | 3,726.4244 Pa | 3,824.4882 Pa | 3,922.552 Pa | 4,020.6158 Pa | 4,118.6796 Pa | 4,216.7434 Pa | 4,314.8072 Pa | 4,412.871 Pa | 4,510.9348 Pa | 4,608.9986 Pa | 4,707.0624 Pa | 4,805.1262 Pa | 4,903.19 Pa | 5,001.2538 Pa | 5,099.3176 Pa | 5,197.3814 Pa | 5,295.4452 Pa | 5,393.509 Pa | 5,491.5728 Pa | 5,589.6366 Pa | 5,687.7004 Pa | 5,785.7642 Pa | 5,883.828 Pa | 5,981.8918 Pa | 6,079.9556 Pa | 6,178.0194 Pa | 6,276.0832 Pa | 6,374.147 Pa | 6,472.2108 Pa | 6,570.2746 Pa | 6,668.3384 Pa | 6,766.4022 Pa | 6,864.466 Pa | 6,962.5298 Pa | 7,060.5936 Pa | 7,158.6574 Pa | 7,256.7212 Pa | 7,354.785 Pa | 7,452.8488 Pa | 7,550.9126 Pa | 7,648.9764 Pa | 7,747.0402 Pa | 7,845.104 Pa | 7,943.1678 Pa | 8,041.2316 Pa | 8,139.2954 Pa | 8,237.3592 Pa | 8,335.423 Pa | 8,433.4868 Pa | 8,531.5506 Pa | 8,629.6144 Pa | 8,727.6782 Pa | 8,825.742 Pa | 8,923.8058 Pa | 9,021.8696 Pa | 9,119.9334 Pa | 9,217.9972 Pa | 9,316.061 Pa | 9,414.1248 Pa | 9,512.1886 Pa | 9,610.2524 Pa | 9,708.3162 Pa | 9,806.38 Pa |
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) | pascals | centimeter of water (4 °C) | pascals |
---|---|---|---|
1 | ≈ 98.0638 | 6 | ≈ 588.3828 |
2 | ≈ 196.1276 | 7 | ≈ 686.4466 |
3 | ≈ 294.1914 | 8 | ≈ 784.5104 |
4 | ≈ 392.2552 | 9 | ≈ 882.5742 |
5 | ≈ 490.319 | 10 | ≈ 980.638 |
The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
pascal | Pa | ≡ N/m2 = kg/(m·s2) | = 1 Pa | Metric system SI |
pascals | centimeter of water (4 °C) | pascals | centimeter of water (4 °C) |
---|---|---|---|
1 | ≈ 0.010197442889221 | 6 | ≈ 0.061184657335327 |
2 | ≈ 0.020394885778442 | 7 | ≈ 0.071382100224548 |
3 | ≈ 0.030592328667663 | 8 | ≈ 0.081579543113769 |
4 | ≈ 0.040789771556884 | 9 | ≈ 0.09177698600299 |
5 | ≈ 0.050987214446105 | 10 | ≈ 0.10197442889221 |
centimeter of water (4 °C) | pascals |
---|---|
1 | ≈ 98.0638 |
0.0101974 | ≈ 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 …) |