Pool Salt Calculator

Calculate salt needed for saltwater pool systems.

How It Works

  1. Enter pool volume. Type gallons, target salt (ppm), and current salt level.
  2. Get salt needed. Calculator uses: lbs = gallons × (target − current) ÷ 1200.
  3. Calculate from dimensions. Enter length, width, depth for rectangular, round, or oval pools.
  4. Estimate bags & cost. See how many 40-lb bags to buy and estimated cost.
  5. Metric conversion. View results in liters and kilograms if needed.

Also try our Recessed Lighting Calculator or Construction Calculators.

Enter values to see results.

Formula & Reference

Lbs = Gallons × (Target − Current) ÷ 1200