Use the free Advanced Nutrients Calculator on ToolVexa to work out a hydroponic feed mix. Enter the reservoir size and the dose for each product, and get the millilitres to add for each one.
How to Use
Enter the reservoir volume in litres, then the dose in millilitres per litre for the base nutrient and for the additive. Press Calculate to see how much of each product to measure out.
Formula in Plain Words
Multiply the reservoir size by the dose per litre. That gives the amount for that product. Add the two amounts together for the total volume to add.
Worked Example
With a 100-litre reservoir, a base dose of 2 ml per litre and an additive dose of 1 ml per litre, the base nutrient is 200 ml, the additive is 100 ml, and the total to add is 300 ml.
FAQs
Should I follow the product label?
Yes. Use the label dose for your growth stage and plant type; this calculator only does the arithmetic.
What if I use more than two products?
Run the same multiplication for each extra product and add the results together.
Does this set the EC or pH?
No. Measure EC and pH separately after mixing, and adjust as your growing guide recommends.