📊 Mixing Parameters
Or enter target TDS below ↓
Enter either EC or TDS
Used for temperature correction
EC × factor × 1000 = TDS (ppm)
📋 Results
Enter parameters and click the calculate button
💡 Instructions
- EC: Electrical Conductivity (mS/cm), indicates ion concentration
- TDS: Total Dissolved Solids (ppm), total amount of dissolved substances
- Concentrate: Stock nutrient solution, needs dilution before use
- Temperature correction: EC varies with temperature; 25°C is the standard
🌡️ Temperature Correction Formula
EC₂₅ = EC_measured / (1 + 0.02 × (T - 25))
Where T is actual water temperature; 25°C is the standard
📈 Common Crop EC Reference
Lettuce
0.8-1.2 mS/cm
Tomato
2.0-3.0 mS/cm
Cucumber
1.7-2.5 mS/cm
Strawberry
0.8-1.2 mS/cm