Rectangle
Length x width x average depth x 7.48052
Volume calculator
Estimate pool volume before adding salt.
Pool volume is the base input for every salt calculation. A small volume error can turn into a large salt error, so measure length, width, diameter, and average depth as carefully as practical.
Round
Pi x radius squared x average depth x 7.48052
Oval
Pi x half length x half width x average depth x 7.48052
Measurement notes
- Use average depth when the pool has a shallow and deep end.
- For metric dimensions, convert cubic meters to gallons before salt calculation.
- For unusual shapes, split the pool into simpler sections and add the estimates.