Pool Volume Calculator
Calculate how many gallons a rectangular pool holds from its length, width, and average depth in feet.
- Liters
- 63713
Formula: V (gal) = L × W × D × 7.48
About Pool Volume Calculator
Pool Volume Calculator is a free online calculator that gives you an instant, accurate result as you type. Calculate how many gallons a rectangular pool holds from its length, width, and average depth in feet.
The calculation uses the standard formula V (gal) = L × W × D × 7.48 and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.
One cubic foot of water is about 7.48 US gallons; for sloped pools, average the shallow-end and deep-end depths.
Frequently Asked Questions
Is Pool Volume Calculator free to use?
Yes. Pool Volume Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.
How accurate is this calculator?
The calculator applies the standard formula (V (gal) = L × W × D × 7.48) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.
Related Tools
Rhombus Calculator
Calculate the area, side length, and perimeter of a rhombus from its two diagonals.
Kite Calculator
Calculate the area of a kite from its two diagonals, plus its perimeter from the two pairs of sides.
Octagon Calculator
Calculate the area and perimeter of a regular octagon from its side length.
Heptagon Calculator
Calculate the area and perimeter of a regular heptagon (7-sided polygon) from its side length.
Nonagon Calculator
Calculate the area and perimeter of a regular nonagon (9-sided polygon) from its side length.
Decagon Calculator
Calculate the area and perimeter of a regular decagon (10-sided polygon) from its side length.