Feed chart tool

Nutrient dosage calculator

Choose your nutrient line, medium, reservoir volume, and week. Get the published mL per gallon rate and the exact total to measure.

Measure before you mix.Check your selections and compare the result with the official feed chart before feeding your plants.

Your mix

Set up the reservoir

Dosage rates come straight from the Cronk store calculator's official feed charts.

Nutrient lineGrow mediumRequired for a complete mix record. This tool does not apply a medium multiplier.Growth week and stage

Reservoir size gallons

Unit

galL

Nutrient strength

Standard (recommended)

Optional additivesCore products for this line are always included. Toggle the additives your grow uses to add them to the totals below.

Core products for the selected line are always included. Turn on additives above to add them to your total.

Choose a grow medium to see your dosage.

Dosage result

Nutrient dosage for the selected reservoir
Product	mL per gal	Total mL

Mix one product at a time.

Add each product to water separately and stir well. Never mix nutrient concentrates together.