Pool Salt Calculator

Estimate pool salt from entered measurements.

Loading calculator…

What this tool does

Estimate pool salt from entered measurements. Use the salt generator's recommended salinity and re-test after thorough mixing. This tool adds salt; it does not calculate removal when levels are too high.

How to use the Pool Salt Calculator

  1. Enter or select pool volume in gal.
  2. Enter or select current salt (ppm).
  3. Enter or select target salt (ppm).
  4. Read the calculated result; change any measurement to compare alternatives.

Formula

salt grams=pool liters×max(0,target−current)/1000; pounds=grams/453.59237
volume
Pool volume (gal, before metric conversion)
current
Current salt (ppm)
target
Target salt (ppm)

Use the salt generator's recommended salinity and re-test after thorough mixing. This tool adds salt; it does not calculate removal when levels are too high.

Worked example

For pool salt calculator, the following measurements illustrate the exact method: Pool volume: 15000; Current salt (ppm): 2000; Target salt (ppm): 3200.

Inputs

  • Pool volume15000 gal
  • Current salt (ppm)2000
  • Target salt (ppm)3200

Result

  • Salt to add150.22 lb

Results explained

Salt to add
Salt to add from the formula above, expressed in lb before metric conversion. Use the salt generator's recommended salinity and re-test after thorough mixing. This tool adds salt; it does not calculate removal when levels are too high.

Frequently asked questions

salt grams=pool liters×max(0,target−current)/1000; pounds=grams/453.59237

Use the salt generator's recommended salinity and re-test after thorough mixing. This tool adds salt; it does not calculate removal when levels are too high.

Verify dimensions, product concentration and equipment instructions. Use a qualified pool professional for final chemical dosing and equipment sizing.

No. The entered figures are processed only in your browser.

Follow each input's unit label. Imperial and metric switching converts the labelled geometry and volume measurements.