Hydroponic Solver

Hydro-Calc automatically calculates the exact amounts of nutrient salts needed to hit your target PPMs.

Fertilizer Optimization

Control solver settings and optimize mixtures by setting minimums, maximums, and more to hit nutrient targets perfectly.

Share & Clone Recipes

Share created fertilizer mixtures, import recipes from others, or clone inputs to match specific target outputs.

Grow Environment Setup

Manage your targets, custom substances, and source water quality to tailor calculations to your hydroponic system.

Grow & Feed Logs

Track nutrient applications, measure EC, pH, and temperature, and monitor fertilizer costs over time.

Nutrient Database

Access pre-loaded nutrient profiles and 50+ global fertilizer substances.

Advanced Hydroponic Nutrient Calculator & Optimization

Welcome to Hydro-Calc, the ultimate hydroponic calculator and fertilizer optimization platform designed for modern growers, agronomists, and hydroponics enthusiasts. Whether you are balancing macronutrients, customizing micro-elements, or adjusting source water chemistry, Hydro-Calc helps you achieve the perfect recipe.

By leveraging advanced linear programming, this tool automatically determines the most cost-effective and precise combination of fertilizer substances to hit your exact target PPMs. Take control of your crop steering, optimize your feed schedules, and track your water quality with professional-grade tools.

Latest Update

Backend Database Optimizations

7/23/2026

Today we've updated search functionality to support instant keyword search across even more areas of the application, alongside under-the-hood performance improvements.

Expanded Search Coverage

You can now use instant keyword search across all of your data management views:

Mixtures & Nutrient Targets: Quickly filter through custom recipes and target formulas.
Feed Schedules & Feed Logs: Instantly find specific feeding routines or logged entries.
Water Quality Profiles & Substances: Easily look up water profiles and shelf ingredients.
Instant Search Controls: Press Enter anytime in a search box to immediately run your query without waiting.

We've also applied backend optimizations to ensure faster data loading and smoother performance across all tools. If you have any feedback or suggestions, let us know using the feedback button in the app!

Hydro-CalcPrecision Hydroponics