Pool Chlorine Calculator
Calculate the exact amount of chlorine to add to your pool for proper sanitization and bacteria control.
Chlorine Calculator
Calculate chlorine dosage to sanitize your pool
Ideal Range: 2 - 4 ppm
Free chlorine sanitizes your pool and kills bacteria. Below 1 ppm is unsafe; above 5 ppm can cause irritation.
Pool Volume
20,000 gallons
Amount to Add
32 fl oz
Liquid Chlorine 12.5%
Tips
• Add in evening, degrades in sunlight
About Pool Chlorine
Free chlorine is your pool's primary sanitizer. It kills bacteria, viruses, and algae to keep your water safe for swimming. The ideal range is 2-4 ppm (parts per million).
Chlorine Types
Liquid Chlorine (Sodium Hypochlorite): Fast-acting, doesn't add CYA. Best for regular dosing.
Cal-Hypo (Calcium Hypochlorite): Granular shock, adds calcium. Good for weekly shocking.
Dichlor: Stabilized granular, adds CYA. Good for hot tubs.
Trichlor: Slow-dissolving tablets, adds CYA. Best in chlorine feeders.