TDS to Conductivity Formula:
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Total Dissolved Solids (TDS) and conductivity are related measurements of water quality. TDS represents the total amount of dissolved substances in water, while conductivity measures water's ability to conduct electrical current. The conversion between them is based on an empirical relationship.
The calculator uses the standard conversion formula:
Where:
Explanation: This formula assumes that most dissolved solids are ionic compounds that contribute to electrical conductivity.
Details: Both parameters are crucial for water quality assessment in applications like drinking water treatment, hydroponics, aquariums, and industrial processes.
Tips: Enter TDS value in ppm. The calculator will automatically compute the corresponding conductivity in μS/cm.
Q1: Why is the conversion factor 0.64?
A: This is an empirical value based on average relationships between TDS and conductivity for most natural waters.
Q2: Is this conversion always accurate?
A: The relationship varies slightly depending on the specific ion composition. For precise measurements, direct conductivity measurement is recommended.
Q3: What are typical TDS values for drinking water?
A: Good quality drinking water typically has TDS between 50-500 ppm.
Q4: Can I use this for seawater?
A: No, seawater has a different ion composition and requires different conversion factors.
Q5: What's the difference between μS/cm and mS/cm?
A: 1 mS/cm = 1000 μS/cm. The calculator provides results in μS/cm.