Pump head calculator:
Online pump head calculator.
Pressure to Head Formulas:
Imperial Units:
H=(2.31 * (P)) /SG
where:
H= Head, ft.
P= Pressure, psi.
SG= Specific Gravity.
SI Units:
H=(10.2 * (P)) /SG
where:
H= Head, m.
P= Pressure, bar.
SG= Specific Gravity.
Convert from Pressure – Pounds per Square Inch (psi) to Head of Water in Feet (fth2o)
| Pressure (PSI) | Head (ft) | Pressure (PSI) | Head (ft) |
| 1 | 2,31 | 26 | 60,06 |
| 2 | 4,62 | 27 | 62,37 |
| 3 | 6,93 | 28 | 64,68 |
| 4 | 9,24 | 29 | 66,99 |
| 5 | 11,55 | 30 | 69,30 |
| 6 | 13,86 | 31 | 71,61 |
| 7 | 16,17 | 32 | 73,92 |
| 8 | 18,48 | 33 | 76,23 |
| 9 | 20,79 | 34 | 78,54 |
| 10 | 23,10 | 35 | 80,85 |
| 11 | 25,41 | 36 | 83,16 |
| 12 | 27,72 | 37 | 85,47 |
| 13 | 30,03 | 38 | 87,78 |
| 14 | 32,34 | 39 | 90,09 |
| 15 | 34,65 | 40 | 92,40 |
| 16 | 36,96 | 41 | 94,71 |
| 17 | 39,27 | 42 | 97,02 |
| 18 | 41,58 | 43 | 99,33 |
| 19 | 43,89 | 44 | 101,64 |
| 20 | 46,20 | 45 | 103,95 |
| 21 | 48,51 | 46 | 106,26 |
| 22 | 50,82 | 47 | 108,57 |
| 23 | 53,13 | 48 | 110,88 |
| 24 | 55,44 | 49 | 113,19 |
| 25 | 57,75 | 50 | 115,50 |
Convert from Pressure – bar to Head of Water in meter (mh2o)
| Pressure (bar) | Head (m) | Pressure (bar) | Head (m) |
| 1 | 10,20 | 26 | 265,20 |
| 2 | 20,40 | 27 | 275,40 |
| 3 | 30,60 | 28 | 285,60 |
| 4 | 40,80 | 29 | 295,80 |
| 5 | 51,00 | 30 | 306,00 |
| 6 | 61,20 | 31 | 316,20 |
| 7 | 71,40 | 32 | 326,40 |
| 8 | 81,60 | 33 | 336,60 |
| 9 | 91,80 | 34 | 346,80 |
| 10 | 102,00 | 35 | 357,00 |
| 11 | 112,20 | 36 | 367,20 |
| 12 | 122,40 | 37 | 377,40 |
| 13 | 132,60 | 38 | 387,60 |
| 14 | 142,80 | 39 | 397,80 |
| 15 | 153,00 | 40 | 408,00 |
| 16 | 163,20 | 41 | 418,20 |
| 17 | 173,40 | 42 | 428,40 |
| 18 | 183,60 | 43 | 438,60 |
| 19 | 193,80 | 44 | 448,80 |
| 20 | 204,00 | 45 | 459,00 |
| 21 | 214,20 | 46 | 469,20 |
| 22 | 224,40 | 47 | 479,40 |
| 23 | 234,60 | 48 | 489,60 |
| 24 | 244,80 | 49 | 499,80 |
| 25 | 255,00 | 50 | 510,00 |