Pool Salt Calculator

Your details

Total water capacity of your pool. Use a pool-volume calculator if unsure.
gal
Read from your salt-chlorine generator display or a salt test strip. Enter 0 for a brand-new saltwater conversion.
ppm
Your salt-chlorine generator manual recommends a target. Most SWGs work best between 3000-3500 ppm; 3200 ppm is the widely used ideal.
ppm
Typical pool-grade salt bags are 40 lb (imperial) or 20 kg (metric).
lb
Optional: enter bag price for a cost estimate.
USD
Salt to addLow salt
400.6

Weight of pool-grade salt to dissolve into your pool

Salt unitlb
Water to drain0
Water drain unitgal
Bags required11
Estimated cost88USD
Salt level after addition3,200ppm
StatusLow: add salt to reach the target
3,200 ppm
Very low<1000Low1000-2700Ideal range2700-3400High3400-4500Too high4500+

Add 400.6 lb of salt to reach 3200 ppm.

  • Add 400.6 lb of pool-grade (NaCl) salt, broadcast around the pool perimeter with the pump running.
  • That is 11 bags of your selected size. Buy one extra as insurance against rounding errors.
  • Wait 24 hours with the pump running, then re-test before adding more salt.
  • Projected salt level after treatment: 3200 ppm (acceptable range is 2700-3400 ppm).

Next stepAlways use pool-grade or food-grade sodium chloride (NaCl, 99.8% pure). Avoid rock salt, table salt with iodine, or solar salt with anti-caking agents.

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