Pot Size Calculator

Estimate a sensible repotting size from growth speed and root condition without overpotting.

Do not jump too large for plants with weak roots. Check drainage and how quickly the mix dries.

Current pot diameter (cm) Root-ball diameter (cm) Growth speed Target pot height (cm)

GUIDE

How to use it

Recommend the next pot size from current pot or root-ball diameter.

The calculation is a starting point. Check drainage, soil condition, plant condition, and season together.

Is the result exact?

It is a reference based on simple presets and volume formulas. Adjust to the real growing conditions.

Is data sent to the server?

No. Calculations run in the browser only.