This is now a legacy post, left here for your convenience. If you’ve found it via search or by an old forum/social link etc I highly recommend you use one of the two calculators linked below instead (They’re the same as the old calc…but better 😉 )
Tank – Parts per million Calculator
Calculate the total parts per million added to your tank for any selected set of nutrients
Stock Solution – Part per million Calculator
Calculate the stock solution percentage and PPM added to the tank for a given dose.
You can select a Weight/Weight or Weight/Volume format
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