Question 1

How many mL of fertilizer per gallon should I use?

Accepted Answer

Fertilizer dosage depends on the growth stage and manufacturer feed chart (typically 2-5 mL/gallon for seedlings, 5-10 mL/gallon for vegetative growth, and 10-15 mL/gallon for flowering bloom booster). Always mix into water in the recommended order.

Question 2

How many milliliters are in one teaspoon or tablespoon?

Accepted Answer

1 level US teaspoon (tsp) equals exactly 4.929 mL (commonly rounded to 5 mL in horticulture). 1 level US tablespoon (tbsp) equals 14.787 mL (commonly rounded to 15 mL). 1 fluid ounce (fl oz) equals 29.574 mL.

Fertilizer & Nutrients Calculator

Any Container Volume: Custom reservoir gallons or liters with one-click presets.
Measurement Systems: Seamless conversion between metric (mL) and imperial (tsp, tbsp, fl oz).
Mixing Order Guidance: Step-by-step nutrient solution prep instructions to prevent nutrient lockout.

Volumetric Dilution Engine