Calculate Liters in a Pool

Calculator how many liters fit into a rectangular swimming pool or basin with varying depth.

Mathematically, such a pool is a wedge-cuboid, see there for the formulas for calculation. Depth refers to the level of the water or the depth of the pool, depending on what you want to calculate. The fill level is lower or at most the same as the depth of the basin, otherwise the water will spill out at the top.


Example, not to scale: a pool 10 meters long, 4 meters wide and between 1.5 and 2 meters deep has a capacity of 70,000 liters.

Please enter length, width and the two depths, the volume in cubic meters and in liters will be calculated.

Small depth:m
Large depth:m


Larger swimming pools often have a three-part bottom, first the depth increases slowly or not at all, then it increases sharply, and then again slowly or not at all. Such pools can be calculated here.

Three-part basin

Example, not to scale: a 20 meter long three-part pool with individual lengths of 7, 4 and 9 meters, a width of 6 meters, a first and second depth of 1.5 meters and a third and fourth depth of 2.5 meters has a capacity of two hundred and forty-six thousand liters.

Please enter the three individual lengths, the width and the four depths, the volume in cubic meters and in liters will be calculated.

First length:m
Second length:m
Third length:m
First depth:m
Second depth:m
Third depth:m
Fourth depth:m

Swimming pool
Such a swimming pool can be calculated here.

Here you can convert metric volume units into customary and imperial units.

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