Nutrient Management
EC / Nutrient Calculator
Calculate how much nutrient concentrate to add to reach your target EC.
Inputs
Dose Required
600000 mL
EC increase: +12 mS/cm
Recommended EC by Stage
Seedlings0.5 – 1 mS/cm
Vegetative1.2 – 2 mS/cm
Pre-Flowering1.5 – 2.5 mS/cm
Flowering2 – 3.5 mS/cm
Tips
- Always add nutrients in small steps and remeasure EC.
- EC measures total dissolved salts, not specific nutrients.
- Temperature affects EC readings — measure at 25°C for accuracy.