Calculate the volume of the swimming pool in liters, filling time, and water cost.
The swimming pool calculator calculates the pool volume in cubic meters and liters, as well as its filling time and water cost. You need to know the volume when sizing the filter or dosing chemicals.
The calculator is free, works in your browser without registration, and shows the result as soon as you change the values. The calculation is done on your device, and the information you enter is not sent anywhere.
Rectangular: length × width × average depth. Round: π × (diameter / 2)² × average depth. Filling time = liters / flow rate (l/min). Cost = m³ × water price.
A rectangular pool measuring 5 × 3 meters and with an average depth of 1.3 meters has a volume of 19.5 m³ or 19,500 liters. With a flow rate of 20 liters per minute, filling takes about 16 hours. With default values, the calculator gives the result: Pool volume 19.50 m³.
For builders or owners of backyard pools who want to know the volume for filtration, heating, and chemical dosing.
If the pool is sloped, calculate the average of the shallow and deep ends.
The water price varies by municipality, often between $1.53–$3.82/cu yd. Enter your local price.
For chemicals, filter sizing, and estimating heating capacity.