Estimate Total Dissolved Solids (TDS) from Electrical Conductivity (EC) measurements.
Water Quality Parameters
µS/cm
Factor Presets
TDS Estimation
Calculated TDS320.00ppm (mg/L)
Quality: Good
Salinity Context
Logarithmic scale comparison of TDS values.
About this calculator
Overview
Total Dissolved Solids (TDS) measures the total concentration of dissolved substances in water, primarily inorganic salts and small amounts of organic matter.
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Pro Tips
Use k=0.64 for general freshwater or drinking water.
Use k=0.50 for high-salinity water or seawater.
TDS is an estimate; for precise results, use gravimetric analysis (evaporating water and weighing residue).
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Fun Facts
"The conversion factor (k) usually ranges from 0.5 to 1.0 depending on the type of ions present."
"Most TDS meters are actually EC meters that apply a fixed factor (often 0.64 or 0.5) to the measurement."
"High TDS can affect the taste of water and lead to mineral buildup in pipes."
