Chemical Dosing Calculator

Calculate chemical requirement from flow, dose and product strength.

Enter the required active chemical dose.
Example: enter 70 for a product containing 70% active chemical.
Advanced Settings
Used to calculate hourly chemical feed rate.
Chemical Dosing Requirement
Product Required
–
kg/day
Flow –
Applied Dose –
Active Chemical –
Active Chemical Rate –
Product Required –
Product Feed Rate –
Calculation Basis

For water-based treatment systems, a dose in mg/L applied to a flow in m³/day can be converted directly to active chemical mass: active chemical (kg/day) = flow (m³/day) × dose (mg/L) ÷ 1,000.

Where the supplied chemical is not 100% active, the actual product requirement is calculated from its active fraction. For liquid products specified as % w/w, solution density is also required to convert chemical mass to dosing volume.

This calculator determines chemical quantity only; it does not determine the correct treatment dose. Required dose should be established from treatment objectives, jar tests, laboratory data, process design, manufacturer information or applicable operating guidance. Always follow the chemical SDS and site-specific handling procedures.