Calculate liquid fertilizer dilution for watering cans, sprayers, fertigation tanks, hose-end feeders, and garden mixes. Estimate concentrate needed, water needed, dilution ratio, ounces per gallon, tablespoons per gallon, nutrient ppm, total mix, and fertilizer cost.
Mix volume mode:
The calculator uses your final tank or watering can volume and label rate to estimate liquid fertilizer concentrate.
Ratio mode:
The calculator uses a dilution ratio such as 1:100 to estimate concentrate and water amounts.
PPM mode:
The calculator estimates concentrate needed from a target nitrogen ppm, fertilizer nitrogen percentage, and fertilizer density.
Stock solution mode:
The calculator estimates concentrate and water for injector stock tanks using the injector ratio.
A liquid fertilizer dilution calculator helps convert label rates, dilution ratios, and nutrient targets into practical mixing amounts.
It can help mix watering cans, sprayers, hose-end feeders, fertigation tanks, and stock solutions without guessing ounces, tablespoons, teaspoons, milliliters, gallons, or ppm.
Your result shows liquid fertilizer concentrate needed, water needed, final mix volume, tablespoons, teaspoons, milliliters, dilution ratio, estimated nitrogen ppm, phosphorus ppm, potassium ppm, stock solution concentrate, and fertilizer cost.
Use the label rate or dilution ratio, then multiply by your final water volume. For example, 1 tablespoon per gallon means 5 tablespoons for 5 gallons.
There are 2 tablespoons in 1 fluid ounce.
A 1:100 dilution means 1 part concentrate in 100 parts final mixed solution. For 100 gallons of final mix, that is about 1 gallon of concentrate.
PPM means parts per million. In fertilizer mixing, it is often used to estimate nutrient concentration in the final diluted solution.
No. This is an estimate. Actual dilution and ppm can vary by fertilizer density, formulation, label instructions, water quality, injector accuracy, measuring tools, and local growing conditions.