foot of water (39.2 °F) | 1 ftH2O | 2 ftH2O | 3 ftH2O | 4 ftH2O | 5 ftH2O | 6 ftH2O | 7 ftH2O | 8 ftH2O | 9 ftH2O | 10 ftH2O | 11 ftH2O | 12 ftH2O | 13 ftH2O | 14 ftH2O | 15 ftH2O | 16 ftH2O | 17 ftH2O | 18 ftH2O | 19 ftH2O | 20 ftH2O | 21 ftH2O | 22 ftH2O | 23 ftH2O | 24 ftH2O | 25 ftH2O | 26 ftH2O | 27 ftH2O | 28 ftH2O | 29 ftH2O | 30 ftH2O | 31 ftH2O | 32 ftH2O | 33 ftH2O | 34 ftH2O | 35 ftH2O | 36 ftH2O | 37 ftH2O | 38 ftH2O | 39 ftH2O | 40 ftH2O | 41 ftH2O | 42 ftH2O | 43 ftH2O | 44 ftH2O | 45 ftH2O | 46 ftH2O | 47 ftH2O | 48 ftH2O | 49 ftH2O | 50 ftH2O | 51 ftH2O | 52 ftH2O | 53 ftH2O | 54 ftH2O | 55 ftH2O | 56 ftH2O | 57 ftH2O | 58 ftH2O | 59 ftH2O | 60 ftH2O | 61 ftH2O | 62 ftH2O | 63 ftH2O | 64 ftH2O | 65 ftH2O | 66 ftH2O | 67 ftH2O | 68 ftH2O | 69 ftH2O | 70 ftH2O | 71 ftH2O | 72 ftH2O | 73 ftH2O | 74 ftH2O | 75 ftH2O | 76 ftH2O | 77 ftH2O | 78 ftH2O | 79 ftH2O | 80 ftH2O | 81 ftH2O | 82 ftH2O | 83 ftH2O | 84 ftH2O | 85 ftH2O | 86 ftH2O | 87 ftH2O | 88 ftH2O | 89 ftH2O | 90 ftH2O | 91 ftH2O | 92 ftH2O | 93 ftH2O | 94 ftH2O | 95 ftH2O | 96 ftH2O | 97 ftH2O | 98 ftH2O | 99 ftH2O | 100 ftH2O |
centimeter of water (4 °C) | 30.4799528 cmH2O | 60.9599057 cmH2O | 91.4398585 cmH2O | 121.9198114 cmH2O | 152.3997642 cmH2O | 182.8797171 cmH2O | 213.3596699 cmH2O | 243.8396228 cmH2O | 274.3195756 cmH2O | 304.7995285 cmH2O | 335.2794813 cmH2O | 365.7594342 cmH2O | 396.2393870 cmH2O | 426.7193399 cmH2O | 457.1992927 cmH2O | 487.6792456 cmH2O | 518.1591984 cmH2O | 548.6391512 cmH2O | 579.1191041 cmH2O | 609.5990569 cmH2O | 640.0790098 cmH2O | 670.5589626 cmH2O | 701.0389155 cmH2O | 731.5188683 cmH2O | 761.9988212 cmH2O | 792.4787740 cmH2O | 822.9587269 cmH2O | 853.4386797 cmH2O | 883.9186326 cmH2O | 914.3985854 cmH2O | 944.8785383 cmH2O | 975.3584911 cmH2O | 1,005.8384440 cmH2O | 1,036.3183968 cmH2O | 1,066.7983496 cmH2O | 1,097.2783025 cmH2O | 1,127.7582553 cmH2O | 1,158.2382082 cmH2O | 1,188.7181610 cmH2O | 1,219.1981139 cmH2O | 1,249.6780667 cmH2O | 1,280.1580196 cmH2O | 1,310.6379724 cmH2O | 1,341.1179253 cmH2O | 1,371.5978781 cmH2O | 1,402.0778310 cmH2O | 1,432.5577838 cmH2O | 1,463.0377367 cmH2O | 1,493.5176895 cmH2O | 1,523.9976424 cmH2O | 1,554.4775952 cmH2O | 1,584.9575480 cmH2O | 1,615.4375009 cmH2O | 1,645.9174537 cmH2O | 1,676.3974066 cmH2O | 1,706.8773594 cmH2O | 1,737.3573123 cmH2O | 1,767.8372651 cmH2O | 1,798.3172180 cmH2O | 1,828.7971708 cmH2O | 1,859.2771237 cmH2O | 1,889.7570765 cmH2O | 1,920.2370294 cmH2O | 1,950.7169822 cmH2O | 1,981.1969351 cmH2O | 2,011.6768879 cmH2O | 2,042.1568408 cmH2O | 2,072.6367936 cmH2O | 2,103.1167464 cmH2O | 2,133.5966993 cmH2O | 2,164.0766521 cmH2O | 2,194.5566050 cmH2O | 2,225.0365578 cmH2O | 2,255.5165107 cmH2O | 2,285.9964635 cmH2O | 2,316.4764164 cmH2O | 2,346.9563692 cmH2O | 2,377.4363221 cmH2O | 2,407.9162749 cmH2O | 2,438.3962278 cmH2O | 2,468.8761806 cmH2O | 2,499.3561335 cmH2O | 2,529.8360863 cmH2O | 2,560.3160392 cmH2O | 2,590.7959920 cmH2O | 2,621.2759448 cmH2O | 2,651.7558977 cmH2O | 2,682.2358505 cmH2O | 2,712.7158034 cmH2O | 2,743.1957562 cmH2O | 2,773.6757091 cmH2O | 2,804.1556619 cmH2O | 2,834.6356148 cmH2O | 2,865.1155676 cmH2O | 2,895.5955205 cmH2O | 2,926.0754733 cmH2O | 2,956.5554262 cmH2O | 2,987.0353790 cmH2O | 3,017.5153319 cmH2O | 3,047.9952847 cmH2O |
foot of water (39.2 °F) is the unit of pressure.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot of water (39.2 °F) | ftH2O | ≈ 999.972 kg/m3 × 1 ft × ɡ0 | ≈ 2.98898×103 Pa | Metric system SI |
feet of water (39.2 °F) | centimeter of water (4 °C) | feet of water (39.2 °F) | centimeter of water (4 °C) |
---|---|---|---|
1 | ≈ 30.479952847024 | 6 | ≈ 182.87971708214 |
2 | ≈ 60.959905694048 | 7 | ≈ 213.35966992917 |
3 | ≈ 91.439858541072 | 8 | ≈ 243.83962277619 |
4 | ≈ 121.9198113881 | 9 | ≈ 274.31957562322 |
5 | ≈ 152.39976423512 | 10 | ≈ 304.79952847024 |
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 water (39.2 °F) | centimeter of water (4 °C) | feet of water (39.2 °F) |
---|---|---|---|
1 | ≈ 0.032808449705251 | 6 | ≈ 0.1968506982315 |
2 | ≈ 0.065616899410501 | 7 | ≈ 0.22965914793675 |
3 | ≈ 0.098425349115752 | 8 | ≈ 0.262467597642 |
4 | ≈ 0.131233798821 | 9 | ≈ 0.29527604734726 |
5 | ≈ 0.16404224852625 | 10 | ≈ 0.32808449705251 |
feet of water (39.2 °F) | centimeter of water (4 °C) |
---|---|
1 | ≈ 30.4799528 |
0.0328084 | ≈ 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 …) |