Chemical Dosing Calculator
The Chemical Dosing Calculator determines the required dosing pump output to achieve a target chemical concentration in a water treatment process. Outputs dosing rate and daily chemical usage.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
Chemical Dosing Calculator
Dosing Rate & Daily Chemical Consumption
📐 Formula & Method
Chemical Feed Rate
The m3/h to L/h and g/L to mg/L conversions cancel cleanly, leaving litres per hour of stock solution.
Daily Usage
Use this for tank refill planning and pump duty checks.
📋 How to Use
-
1
Enter the process flow in m3/h.
-
2
Enter the desired chemical dose in mg/L.
-
3
Enter stock solution concentration in g/L.
-
4
Click Calculate to see pump output in L/h and mL/min.
🧮 Worked Examples
Validation case
Process flow 100 m3/h, target dose 10 mg/L, stock concentration 100 g/L.
Chemical Dosing Calculator — Engineering Reference
Chemical dosing is a mass-balance problem: the target mass per litre of treated water must be supplied by a known concentration of stock solution.
Use this result to select a dosing pump range, then confirm compatibility, turndown, calibration, suction conditions, and chemical-specific safety factors before installation.
🔬 Methodology & Accuracy
Formula: Mass balance using flow in m3/h, target dose in mg/L, and stock concentration in g/L. Unit conversions reduce to L/h = flow x dose / stock.
Data sources: Standard water-treatment chemical feed mass-balance formula.
Last reviewed: June 2026 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.