How the grecian pool volume calculator works
Multiply length by width, then by 0.85 to allow for the clipped corners. Multiply that area by average water depth for cubic feet.
True Grecian pools clip all four corners. A Roman end pool with only one clipped end holds more, so use the Roman calculator instead.
The formula
Volume = length x width x 0.85 x average depth
Measure: Length, width, average depth.
Worked example
A 34 by 16 foot Grecian pool gives 34 x 16 x 0.85, which is 462.4 square feet.
At an average depth of 5 feet that is 2,312 cubic feet, roughly 17,296 gallons or 65,470 litres.
Tips before you measure
Measure the full rectangle the pool would fill if the corners were square. The factor removes the corners for you.
If the corners are only lightly clipped, the result runs a little low. Add 2 to 3 percent for chemical dosing headroom.
Grecian pool volume FAQs
What makes a pool Grecian?
Four clipped or stepped corners on an otherwise rectangular outline, often with matching steps at one end.
Why multiply by 0.85?
The clipped corners remove roughly 15 percent of a plain rectangle, so 0.85 approximates the remaining water surface.
Is Grecian the same as Roman?
No. Roman pools have rounded ends that add area, while Grecian corners take area away.
Other pool shapes
Not quite the right outline? The main pool volume calculator covers all 20 shapes with the same units and formulas.