centimeter of mercury | 1 cmHg | 2 cmHg | 3 cmHg | 4 cmHg | 5 cmHg | 6 cmHg | 7 cmHg | 8 cmHg | 9 cmHg | 10 cmHg | 11 cmHg | 12 cmHg | 13 cmHg | 14 cmHg | 15 cmHg | 16 cmHg | 17 cmHg | 18 cmHg | 19 cmHg | 20 cmHg | 21 cmHg | 22 cmHg | 23 cmHg | 24 cmHg | 25 cmHg | 26 cmHg | 27 cmHg | 28 cmHg | 29 cmHg | 30 cmHg | 31 cmHg | 32 cmHg | 33 cmHg | 34 cmHg | 35 cmHg | 36 cmHg | 37 cmHg | 38 cmHg | 39 cmHg | 40 cmHg | 41 cmHg | 42 cmHg | 43 cmHg | 44 cmHg | 45 cmHg | 46 cmHg | 47 cmHg | 48 cmHg | 49 cmHg | 50 cmHg | 51 cmHg | 52 cmHg | 53 cmHg | 54 cmHg | 55 cmHg | 56 cmHg | 57 cmHg | 58 cmHg | 59 cmHg | 60 cmHg | 61 cmHg | 62 cmHg | 63 cmHg | 64 cmHg | 65 cmHg | 66 cmHg | 67 cmHg | 68 cmHg | 69 cmHg | 70 cmHg | 71 cmHg | 72 cmHg | 73 cmHg | 74 cmHg | 75 cmHg | 76 cmHg | 77 cmHg | 78 cmHg | 79 cmHg | 80 cmHg | 81 cmHg | 82 cmHg | 83 cmHg | 84 cmHg | 85 cmHg | 86 cmHg | 87 cmHg | 88 cmHg | 89 cmHg | 90 cmHg | 91 cmHg | 92 cmHg | 93 cmHg | 94 cmHg | 95 cmHg | 96 cmHg | 97 cmHg | 98 cmHg | 99 cmHg | 100 cmHg |
centimeter of water (4 °C) | 13.5954348 cmH2O | 27.1908696 cmH2O | 40.7863044 cmH2O | 54.3817392 cmH2O | 67.9771740 cmH2O | 81.5726089 cmH2O | 95.1680437 cmH2O | 108.7634785 cmH2O | 122.3589133 cmH2O | 135.9543481 cmH2O | 149.5497829 cmH2O | 163.1452177 cmH2O | 176.7406525 cmH2O | 190.3360873 cmH2O | 203.9315221 cmH2O | 217.5269569 cmH2O | 231.1223917 cmH2O | 244.7178266 cmH2O | 258.3132614 cmH2O | 271.9086962 cmH2O | 285.5041310 cmH2O | 299.0995658 cmH2O | 312.6950006 cmH2O | 326.2904354 cmH2O | 339.8858702 cmH2O | 353.4813050 cmH2O | 367.0767398 cmH2O | 380.6721746 cmH2O | 394.2676095 cmH2O | 407.8630443 cmH2O | 421.4584791 cmH2O | 435.0539139 cmH2O | 448.6493487 cmH2O | 462.2447835 cmH2O | 475.8402183 cmH2O | 489.4356531 cmH2O | 503.0310879 cmH2O | 516.6265227 cmH2O | 530.2219575 cmH2O | 543.8173924 cmH2O | 557.4128272 cmH2O | 571.0082620 cmH2O | 584.6036968 cmH2O | 598.1991316 cmH2O | 611.7945664 cmH2O | 625.3900012 cmH2O | 638.9854360 cmH2O | 652.5808708 cmH2O | 666.1763056 cmH2O | 679.7717404 cmH2O | 693.3671752 cmH2O | 706.9626101 cmH2O | 720.5580449 cmH2O | 734.1534797 cmH2O | 747.7489145 cmH2O | 761.3443493 cmH2O | 774.9397841 cmH2O | 788.5352189 cmH2O | 802.1306537 cmH2O | 815.7260885 cmH2O | 829.3215233 cmH2O | 842.9169581 cmH2O | 856.5123930 cmH2O | 870.1078278 cmH2O | 883.7032626 cmH2O | 897.2986974 cmH2O | 910.8941322 cmH2O | 924.4895670 cmH2O | 938.0850018 cmH2O | 951.6804366 cmH2O | 965.2758714 cmH2O | 978.8713062 cmH2O | 992.4667410 cmH2O | 1,006.0621758 cmH2O | 1,019.6576107 cmH2O | 1,033.2530455 cmH2O | 1,046.8484803 cmH2O | 1,060.4439151 cmH2O | 1,074.0393499 cmH2O | 1,087.6347847 cmH2O | 1,101.2302195 cmH2O | 1,114.8256543 cmH2O | 1,128.4210891 cmH2O | 1,142.0165239 cmH2O | 1,155.6119587 cmH2O | 1,169.2073936 cmH2O | 1,182.8028284 cmH2O | 1,196.3982632 cmH2O | 1,209.9936980 cmH2O | 1,223.5891328 cmH2O | 1,237.1845676 cmH2O | 1,250.7800024 cmH2O | 1,264.3754372 cmH2O | 1,277.9708720 cmH2O | 1,291.5663068 cmH2O | 1,305.1617416 cmH2O | 1,318.7571765 cmH2O | 1,332.3526113 cmH2O | 1,345.9480461 cmH2O | 1,359.5434809 cmH2O |
A centimetre of mercury is the unit of pressure.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centimeter of mercury | cmHg | ≡ 13595.1 kg/m3 × 1 cm × ɡ0 | ≈ 1.33322×103 Pa | Metric system SI |
centimeter of mercury | centimeter of water (4 °C) | centimeter of mercury | centimeter of water (4 °C) |
---|---|---|---|
1 | ≈ 13.595434808767 | 6 | ≈ 81.572608852604 |
2 | ≈ 27.190869617535 | 7 | ≈ 95.168043661371 |
3 | ≈ 40.786304426302 | 8 | ≈ 108.76347847014 |
4 | ≈ 54.381739235069 | 9 | ≈ 122.35891327891 |
5 | ≈ 67.977174043837 | 10 | ≈ 135.95434808767 |
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) | centimeter of mercury | centimeter of water (4 °C) | centimeter of mercury |
---|---|---|---|
1 | ≈ 0.073554102098678 | 6 | ≈ 0.44132461259207 |
2 | ≈ 0.14710820419736 | 7 | ≈ 0.51487871469075 |
3 | ≈ 0.22066230629604 | 8 | ≈ 0.58843281678943 |
4 | ≈ 0.29421640839471 | 9 | ≈ 0.66198691888811 |
5 | ≈ 0.36777051049339 | 10 | ≈ 0.73554102098678 |
centimeter of mercury | centimeter of water (4 °C) |
---|---|
1 | ≈ 13.5954348 |
0.0735541 | ≈ 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 …) |