GratisAI household · calculate container potting soil volume for indoor plant repotting · local-first FREE TIER 1 Free Run Available
potting-volume chart · plotted bar chart sheet

Calculate Container Potting Soil Volume for Indoor Plant Repotting

Repotting root-bound houseplants into larger decorative containers often leads to buying either too little potting mix mid-project or storing half-empty bags of soil that attract fungus gnats. Enter your planter dimensions, top and bottom diameters, interior heights, and commercial bag sizes to calculate exact soil volumes in dry quarts.

1 · planter container label | top diameter in inches | bottom diameter in inches | pot interior height in inches

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HYPOTHESIS / PROTOTYPE — checkout unavailable. Calculation is local. A draft is saved automatically in this browser profile when storage is available; Reset to sample clears it. Optional Pro history stores only five summaries and has its own deletion control. State links encode your inputs and can remain in browser history, clipboard or recipients’ records; share only non-sensitive rows. Optional external AI formatting leaves this device. The required site analytics beacon reports page activity; shared URLs contain encoded inputs. Do not treat an encoded URL as private. The calculator has no input-collection endpoint.

Data note: The potting-volume chart processes planter container label | top diameter in inches | bottom diameter in inches | pot interior height in inches locally. Starter/sample selection and Run compute in this tab; no input is sent by the calculator. A local draft may be saved; explicit state-link sharing or optional external AI formatting can disclose inputs. Use non-sensitive labels.

Perspective: Before: repotting container houseplants involved buying random bags of potting soil. After: 3D pot dimensions calculate truncated cone soil volume in dry quarts and commercial bags required.

2 · Read the potting-volume chart

Container volume geometry arithmetic only, not botanical soil blend or horticultural potting guidance. Soil compaction, root ball displacement, and drainage substrate layers alter net potting mix required. Follow plant care instructions.

Optional filing controls are a local prototype.

Checkout is unavailable. The reading above is complete; print, CSV and five local summaries are optional enhancements, not hidden answers.

Before using the potting-volume chart

Most standard nursery pots, terracotta planters, and ceramic containers are shaped as truncated circular cones (frustums), tapering from a wider top diameter to a narrower drainage base. Standard cylinder volume formulas significantly overestimate pot volume, leading gardeners to buy excess potting soil. The true volume in cubic inches is calculated using the frustum formula: V = (π × h / 3) × (r₁² + r₁×r₂ + r₂²), where r₁ is the top radius, r₂ is the bottom radius, and h is the interior depth. In the United States, commercial potting mix is sold in dry quarts (where 1 US dry quart equals exactly 67.2 cubic inches). Enter your container measurements to determine exact soil requirements and bag quantities.

Boundary and sources

Container volume geometry arithmetic only, not botanical soil blend or horticultural potting guidance. Soil compaction, root ball displacement, and drainage substrate layers alter net potting mix required. Follow plant care instructions.

Mechanism: competence-autonomy-loop

Optional AI formatting, never the calculation

Manual entry completes this potting-volume chart for free without signup. If available to you, the free AI Studio interface linked in the sources may format fictional or non-sensitive notes; external access may require an account. No API key or AI call is built into this tool. Free-tier content may be used to improve products. Review each cell and transcribe it to the labeled row schema; do not paste the JSON object into the row box.

Format only these fictional or non-sensitive notes for a potting-volume chart. Return strict JSON shaped as {"rows": [{"label": "string", "cells": ["string", "string", "string"]}], "setting": "string"}. The columns are planter container label | top diameter in inches | bottom diameter in inches | pot interior height in inches; the setting is Commercial potting soil bag volume in dry quarts. Keep all supplied strings and quantities exactly; do not calculate, infer missing entries, invent dates or add advice. If any required value is missing, return an empty rows array and ask me for it separately. I will verify every cell against my source and manually transcribe rows using vertical bars before running the local calculator.

An AI response is not executed, fetched or trusted as a result. Missing values remain questions; the strict local parser checks the rows you actually enter.