foot of mercury | 1 ftHg | 2 ftHg | 3 ftHg | 4 ftHg | 5 ftHg | 6 ftHg | 7 ftHg | 8 ftHg | 9 ftHg | 10 ftHg | 11 ftHg | 12 ftHg | 13 ftHg | 14 ftHg | 15 ftHg | 16 ftHg | 17 ftHg | 18 ftHg | 19 ftHg | 20 ftHg | 21 ftHg | 22 ftHg | 23 ftHg | 24 ftHg | 25 ftHg | 26 ftHg | 27 ftHg | 28 ftHg | 29 ftHg | 30 ftHg | 31 ftHg | 32 ftHg | 33 ftHg | 34 ftHg | 35 ftHg | 36 ftHg | 37 ftHg | 38 ftHg | 39 ftHg | 40 ftHg | 41 ftHg | 42 ftHg | 43 ftHg | 44 ftHg | 45 ftHg | 46 ftHg | 47 ftHg | 48 ftHg | 49 ftHg | 50 ftHg | 51 ftHg | 52 ftHg | 53 ftHg | 54 ftHg | 55 ftHg | 56 ftHg | 57 ftHg | 58 ftHg | 59 ftHg | 60 ftHg | 61 ftHg | 62 ftHg | 63 ftHg | 64 ftHg | 65 ftHg | 66 ftHg | 67 ftHg | 68 ftHg | 69 ftHg | 70 ftHg | 71 ftHg | 72 ftHg | 73 ftHg | 74 ftHg | 75 ftHg | 76 ftHg | 77 ftHg | 78 ftHg | 79 ftHg | 80 ftHg | 81 ftHg | 82 ftHg | 83 ftHg | 84 ftHg | 85 ftHg | 86 ftHg | 87 ftHg | 88 ftHg | 89 ftHg | 90 ftHg | 91 ftHg | 92 ftHg | 93 ftHg | 94 ftHg | 95 ftHg | 96 ftHg | 97 ftHg | 98 ftHg | 99 ftHg | 100 ftHg |
centimeter of water (4 °C) | 414.3900196 cmH2O | 828.7800391 cmH2O | 1,243.1700587 cmH2O | 1,657.5600782 cmH2O | 2,071.9500978 cmH2O | 2,486.3401174 cmH2O | 2,900.7301369 cmH2O | 3,315.1201565 cmH2O | 3,729.5101760 cmH2O | 4,143.9001956 cmH2O | 4,558.2902151 cmH2O | 4,972.6802347 cmH2O | 5,387.0702543 cmH2O | 5,801.4602738 cmH2O | 6,215.8502934 cmH2O | 6,630.2403129 cmH2O | 7,044.6303325 cmH2O | 7,459.0203521 cmH2O | 7,873.4103716 cmH2O | 8,287.8003912 cmH2O | 8,702.1904107 cmH2O | 9,116.5804303 cmH2O | 9,530.9704499 cmH2O | 9,945.3604694 cmH2O | 10,359.7504890 cmH2O | 10,774.1405085 cmH2O | 11,188.5305281 cmH2O | 11,602.9205476 cmH2O | 12,017.3105672 cmH2O | 12,431.7005868 cmH2O | 12,846.0906063 cmH2O | 13,260.4806259 cmH2O | 13,674.8706454 cmH2O | 14,089.2606650 cmH2O | 14,503.6506846 cmH2O | 14,918.0407041 cmH2O | 15,332.4307237 cmH2O | 15,746.8207432 cmH2O | 16,161.2107628 cmH2O | 16,575.6007823 cmH2O | 16,989.9908019 cmH2O | 17,404.3808215 cmH2O | 17,818.7708410 cmH2O | 18,233.1608606 cmH2O | 18,647.5508801 cmH2O | 19,061.9408997 cmH2O | 19,476.3309193 cmH2O | 19,890.7209388 cmH2O | 20,305.1109584 cmH2O | 20,719.5009779 cmH2O | 21,133.8909975 cmH2O | 21,548.2810171 cmH2O | 21,962.6710366 cmH2O | 22,377.0610562 cmH2O | 22,791.4510757 cmH2O | 23,205.8410953 cmH2O | 23,620.2311148 cmH2O | 24,034.6211344 cmH2O | 24,449.0111540 cmH2O | 24,863.4011735 cmH2O | 25,277.7911931 cmH2O | 25,692.1812126 cmH2O | 26,106.5712322 cmH2O | 26,520.9612518 cmH2O | 26,935.3512713 cmH2O | 27,349.7412909 cmH2O | 27,764.1313104 cmH2O | 28,178.5213300 cmH2O | 28,592.9113496 cmH2O | 29,007.3013691 cmH2O | 29,421.6913887 cmH2O | 29,836.0814082 cmH2O | 30,250.4714278 cmH2O | 30,664.8614473 cmH2O | 31,079.2514669 cmH2O | 31,493.6414865 cmH2O | 31,908.0315060 cmH2O | 32,322.4215256 cmH2O | 32,736.8115451 cmH2O | 33,151.2015647 cmH2O | 33,565.5915843 cmH2O | 33,979.9816038 cmH2O | 34,394.3716234 cmH2O | 34,808.7616429 cmH2O | 35,223.1516625 cmH2O | 35,637.5416820 cmH2O | 36,051.9317016 cmH2O | 36,466.3217212 cmH2O | 36,880.7117407 cmH2O | 37,295.1017603 cmH2O | 37,709.4917798 cmH2O | 38,123.8817994 cmH2O | 38,538.2718190 cmH2O | 38,952.6618385 cmH2O | 39,367.0518581 cmH2O | 39,781.4418776 cmH2O | 40,195.8318972 cmH2O | 40,610.2219168 cmH2O | 41,024.6119363 cmH2O | 41,439.0019559 cmH2O |
A foot of mercury is the unit of pressure.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot of mercury | ftHg | ≡ 13595.1 kg/m3 × 1 ft × ɡ0 | ≈ 4.063666×104 Pa | Imperial/US |
feet of mercury | centimeter of water (4 °C) | feet of mercury | centimeter of water (4 °C) |
---|---|---|---|
1 | ≈ 414.3900195587 | 6 | ≈ 2486.3401173522 |
2 | ≈ 828.78003911739 | 7 | ≈ 2900.7301369109 |
3 | ≈ 1243.1700586761 | 8 | ≈ 3315.1201564696 |
4 | ≈ 1657.5600782348 | 9 | ≈ 3729.5101760283 |
5 | ≈ 2071.9500977935 | 10 | ≈ 4143.900195587 |
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) | feet of mercury | centimeter of water (4 °C) | feet of mercury |
---|---|---|---|
1 | ≈ 0.0024131855324724 | 6 | ≈ 0.014479113194834 |
2 | ≈ 0.0048263710649448 | 7 | ≈ 0.016892298727307 |
3 | ≈ 0.0072395565974172 | 8 | ≈ 0.019305484259779 |
4 | ≈ 0.0096527421298896 | 9 | ≈ 0.021718669792252 |
5 | ≈ 0.012065927662362 | 10 | ≈ 0.024131855324724 |
feet of mercury | centimeter of water (4 °C) |
---|---|
1 | ≈ 414.3900196 |
0.0024132 | ≈ 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 …) |