Convert between PPM and EC on different meter scales.
TDS meters report PPM using different multipliers, so dividing by your meter's scale gives the true EC. Two meters can read 700 and 1000 on the same solution, so standardizing on EC makes advice and doses comparable.
EC Concentrate
EC = ppm / scale factor
EC = ppm / scale factor TDS meters report PPM using different multipliers, so dividing by your meter's scale gives the true EC.
Two meters can read 700 and 1000 on the same solution, so standardizing on EC makes advice and doses comparable.
This calculator takes 2 inputs: PPM reading, Meter scale. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.