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Engineering ToolBox > Pumping Water - Horsepower Requirements

Horsepower requirements pumping water

The table below can be used to estimate the power requirements when pumping water.

Volume Flow
(gpm)
Horsepower Required to lift water at 60oF (hp)
Height (ft)
5 10 15 20 25 30 35 40 50
5 0.01 0.01 0.02 0.03 0.03 0.04 0.04 0.05 0.06
10 0.011 0.03 0.04 0.05 0.06 0.08 0.09 0.10 0.13
15 0.02 0.04 0.06 0.08 0.10 0.11 0.13 0.15 0.19
20 0.03 0.05 0.08 0.10 0.13 0.15 0.18 0.20 0.25
25 0.03 0.06 0.10 0.13 0.16 0.19 0.22 0.25 0.32
30 0.04 0.08 0.11 0.15 0.19 0.23 0.27 0.30 0.38
35 0.04 0.09 0.13 0.18 0.22 0.27 0.31 0.35 0.44
40 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.51
45 0.06 0.11 0.17 0.23 0.28 0.34 0.40 0.46 0.57
50 0.06 0.13 0.19 0.25 0.32 0.38 0.44 0.50 0.63
60 0.08 0.15 0.23 0.30 0.38 0.46 0.53 0.61 0.76
70 0.09 0.18 0.27 0.35 0.44 0.53 0.62 0.71 0.88
80 0.10 0.20 0.30 0.40 0.50 0.61 0.71 0.81 1.0
90 0.11 0.23 0.34 0.46 0.57 0.68 0.80 0.91 1.1
100 0.13 0.25 0.38 0.50 0.63 0.76 0.88 1.00 1.3

Note! Individual pump curves should always be used for exact calculations.

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