Free pond calculators

Pump Head Calculator

Calculate the head pressure required for your pump with our easy-to-use Pump Head Calculator. Input your data and get instant results for your pump head requirements.

Your plumbing

ft
ft
ft
Count your fittings instead
Std elbow, 90°0
Std elbow, 45°0
Male / female adapter0
Tee (straight through)0
Tee (through branch)0
Swing check valve0
ft / ft
Look it up from flow and tubing size

The highlighted line shows what each box measures. Your numbers appear on the drawing.

Your results

Enter your vertical head, tubing, fittings and friction loss to see the total dynamic head.

(833) 779 2837
How we calculate this
  • Equivalent pipe length = fitting length (Chart 1) + tubing length.
  • Friction head = equivalent pipe length × friction loss per foot (Chart 2).
  • Total dynamic head (TDH) = vertical head + friction head. Vertical head is the height from the pond's water surface to the highest point the water is pumped to.

Use the above Total Dynamic Head (TDH) value to select the best pump for your project. Pump listings on Midwestponds all have TDH charts. See where your number lies on graph 3 to select the best pump for your waterfall.

Now that you have your TDH, go to our Submersible Pump / Exterior Pump listings and select your pump!

Chart 1: fitting length in feetAdd up the equivalent length of every fitting. Example: 8.5 (90°) + 4.5 (M/FA) + 19.0 (check valve) = 32 ft.
PVC fitting0.5"1"1.25"1.5"2"3"
Std elbow, 90°4.505.507.007.508.5011.00
Std elbow, 45°1.001.502.002.503.004.00
Male / female adapter1.502.003.003.504.506.50
Tee (straight through)2.503.005.006.008.0012.00
Tee (through branch)5.507.009.0010.0012.0017.00
Swing check valve9.0011.0013.0015.0019.0027.00
Chart 2: friction loss per foot of tubingFind your pump's flow (GPH) and your tubing size. Tap a value to use it.
Flow (GPH)0.5"0.75"1"1.25"1.5"2"3"
100
200
300
400
500
750
1,000
1,250
1,500
2,000
3,000
4,000
5,000
6,000
8,000
10,000
12,000
15,000
18,000
Example pump curve: head height in feet against gallons per hour for several pumps
(Chart 3) Example pump curve: find your TDH on the left and follow it across to the pumps that reach it.

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