Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Swimming
Pool Chemical Dosage Calculator
Calculate how much chlorine to add to raise your pool to a safe target free-chlorine level, given current reading and pool volume. Use it for routine weekly shock treatments and for correcting low sanitizer readings after heavy use.
Fill in the required fields to see your result.
Swimming
Pool Chemical Dosage Calculator
Calculates the exact amount of chlorine needed to bring your pool to a safe level. Use it when opening your pool, after heavy rain, or whenever your test kit shows low chlorine.
Fill in the required fields to see your result.
Key differences
| Pool Chemical Dosage Calculator | Pool Chemical Dosage Calculator | |
|---|---|---|
| Category | Swimming | Swimming |
| Inputs required | 3 | 5 |
| Result | Chlorine Needed (kg) | Chlorine Needed (oz) |
| What it does | Calculate how much chlorine to add to raise your pool to a safe target free-chlorine level, given current reading and pool volume. Use it for routine weekly shock treatments and for correcting low sanitizer readings after heavy use. | Calculates the exact amount of chlorine needed to bring your pool to a safe level. Use it when opening your pool, after heavy rain, or whenever your test kit shows low chlorine. |