Interactive tool

Saltwater Pool Salt Dose Calculator

Estimate pounds of pool salt to raise salinity from current to target ppm. Free calculator — retest and follow your SWG manual.

Estimates only — always retest water and follow product labels. Not professional advice.

Salt dose calculator

Pounds of pool salt to move from current toward target salinity (~6.4 lb / 10k gal / 100 ppm).

Estimates only. Your salt cell manual and a reliable salt test win. Retest after dissolving.

From a salt test or SWG reading.

Often ~3200 ppm — check your SWG.

Estimated amount

204.8 lb

≈ 92.9 kg · 6 × 40 lb bags

To raise salt about 3,200 ppm in 10,000 gal.

  1. Broadcast salt in 2–3 shallow zones (not piled in one spot).
  2. Brush to help dissolve; keep pump running.
  3. Wait ~24 hours, retest salt, then fine-tune.
  • Estimate only — confirm SWG manufacturer target range (often ~2700–3400 ppm).
  • Use pool-grade salt (evaporated / solar). Avoid rock salt with anti-caking junk when the manual forbids it.
  • Add salt in 2–3 zones slowly; brush to dissolve; run pump; retest after 24 hours.

Gear that may help

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Saltwater basics · What salt to buy

What this tool estimates

Pounds of salt to raise salinity by the gap between your current reading and a target. It does not diagnose a bad cell or low stabilizer.

Before you add salt

  • Confirm volume and a trustworthy salt reading
  • Read the SWG manual for min/max salinity
  • Brush to dissolve; run the pump; retest after ~24 hours

Frequently Asked Questions

What target should I use?

Whatever your salt chlorine generator manual specifies — often around 2700–3400 ppm. Don’t chase a random internet number.

Bag size?

The tool also shows an approximate count of 40 lb bags for convenience.