Pool Chlorine Calculator
Estimate how much granular chlorine your pool needs, both for regular maintenance and for a shock treatment after heavy use or green water.
How is it calculated?
Rough dose: maintenance ≈ 3 g of chlorine per m³ of water; shock treatment ≈ 10 g per m³. These figures are a general guide for granular chlorine (sodium dichloroisocyanurate) — the exact concentration depends on the product, so always follow the label instructions.
Examples
48 m³ pool, maintenance treatment
You need about 144 g of chlorine.
21.6 m³ pool, shock treatment
You need about 216 g of chlorine.
Maintenance and shock treatment
These are doses for standard granular chlorine; always follow the product label and never mix chemical products. Calculate the volume with the pool volume calculator and the filtration hours.
| Treatment | Rough dose | When |
|---|---|---|
| Maintenance | ≈ 3 g per m³ | Regular use |
| Shock | ≈ 10 g per m³ | Green or cloudy water, very heavy use |