Pot Size Calculator
Find the right pot diameter for your plant's size.
Find the right pot diameter for your plant's size.
Get peat, perlite, and pumice ratios for your plant.
Find out if your plant needs repotting based on root signs, growth rate, pot size, and season.
Find the ideal soil pH for your plant and suggested amendments.
Try keywords like watering, fertilizer, or light—or tell us which calculator or guide you'd like to see next.
Plant calculators are interactive tools that help you make plant care decisions based on your plant type, pot size, light, soil, season, symptoms, and care habits.
Yes, the plant calculators and care tools on this page are free to use.
Some tools can help identify likely causes of common plant symptoms such as yellow leaves, brown tips, drooping leaves, leaf curl, spots, pests, and root rot. They are meant for guidance, not professional diagnosis.
Start with the Why Is My Plant Dying? tool or the Plant Problem Diagnosis tool. If you already know the main symptom, use a specific tool such as Yellow Leaves Diagnosis Tool, Brown Tips Diagnosis Tool, or Root Rot Risk Checker.
Use the Plant Watering Calculator to estimate watering frequency and the Water Amount Calculator to estimate how much water to use.
Use Best Plant for My Room Finder, Beginner Plant Finder, Low Light Plant Finder, Office Plant Finder, Balcony Plant Finder, Bathroom Plant Finder, or Pet-Safe Plant Finder.