Hydroponic Nutrient Calculator

This tool was created by taking inspiration from Penn State Extension.

What Is a Hydroponic Nutrients Calculator?

This calculator is a tool for hydroponic growers to determine the amount of nutrient solution needed to reach a specific concentration (measured in parts per million, or ppm) in their hydroponic system.

Here is an explanation of each input:

• Target ppm: This is the desired concentration of the nutrient solution in the hydroponic system, expressed in parts per million.
• Fertilizer concentration (mg/l): This is the concentration of the fertilizer being used, expressed in milligrams per liter.
• Fertilizer percentage (N-P-K): This is the percentage of nitrogen, phosphorus, and potassium in the fertilizer, expressed as a ratio (e.g., 10-5-5).
• Stock tank volume (gal): This is the volume of the stock tank, which is used to mix the nutrient solution. It is expressed in gallons.
• Injector ratio: This is the ratio of the volume of water to the volume of nutrient solution being injected into the hydroponic system. For example, a ratio of 1:1 means that for every 1 gallon of water, 1 gallon of nutrient solution is added.

How to use this Hydroponic Nutrient Calculator?

1. Enter the desired target ppm in the “Target ppm” input field. This is the concentration of the nutrient solution you want to achieve in your hydroponic system.
2. Enter the concentration of the fertilizer being used in the “Fertilizer concentration (mg/l)” input field. This is the concentration of the fertilizer, expressed in milligrams per liter.
3. Enter the percentage of nitrogen, phosphorus, and potassium in the fertilizer in the “Fertilizer percentage (N-P-K)” input field. This should be expressed as a ratio (e.g. 10-5-5).
4. Enter the volume of the stock tank in the “Stock tank volume (gal)” input field. This is the volume of the tank used to mix the nutrient solution.
5. Enter the injector ratio in the “Injector ratio” input field. This is the ratio of water to the nutrient solution being injected into the hydroponic system.
6. Click the “Calculate” button to calculate the recommended amount of nutrient solution needed. The recommendation will be displayed in the “Recommendations” section.

other things to keep in mind

There are a few other things to keep in mind when using this hydroponic nutrient calculator:

• Make sure to accurately measure and input the concentration of the fertilizer being used, as well as the percentage of nitrogen, phosphorus, and potassium it contains.
• Keep in mind that the target ppm may vary depending on the type of plants being grown and their stage of growth. It is important to consult a nutrient chart or guidelines from the manufacturer of the fertilizer to determine the appropriate target ppm for your plants.
• The injector ratio may also vary depending on the type of hydroponic system being used and the specific needs of the plants. It is important to consult the manufacturer’s guidelines or seek advice from an expert to determine the appropriate injector ratio for your system.
• It is important to regularly test and monitor the nutrient solution in your hydroponic system to ensure that it is at the correct concentration and that your plants are receiving the nutrients they need.
• Overall, it is important to consult with experts and do research to properly understand the needs of your plants and the specific requirements of your hydroponic system.