Chlorine Dose Calculator
Uses only user inputs; no recommended residual or treatment guarantee. Optional concentration converts active chlorine mass to product volume. Sources: US EPA GWR and wastewater guidance (EPA 10064): https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P1002Y6I.TXT and https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=200044E0.txt
A QUICK WALKTHROUGH
How to use this tool
- Calculate chlorine dose from user supplied demand and target residual.
- Dose = demand + target residual; mass rate (kg/day) = Dose (mg/L) × flow (L/s) × 0.0864; product volume (L/day) = mass rate × 1,000,000 / concentration (mg/L).
- Uses only user inputs; no recommended residual or treatment guarantee. Optional concentration converts active chlorine mass to product volume. Sources: US EPA GWR and wastewater guidance (EPA 10064): https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P1002Y6I.TXT and https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=200044E0.txt
Scope and limitations
Uses only user inputs; no recommended residual or treatment guarantee. Optional concentration converts active chlorine mass to product volume. Sources: US EPA GWR and wastewater guidance (EPA 10064): https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P1002Y6I.TXT and https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=200044E0.txt
Formula
Dose = demand + target residual; mass rate (kg/day) = Dose (mg/L) × flow (L/s) × 0.0864; product volume (L/day) = mass rate × 1,000,000 / concentration (mg/L).
GOOD TO KNOW
Common questions
Are inputs uploaded?
Calculations stay in this browser.