Potting Soil Calculator
Chemistry & BiologyCalculate how much potting soil is needed to fill rectangular or round containers.
Total Soil Volume
Total volume of potting soil needed, in cubic inches, across all containers.
Total Soil Volume (cubic feet)
0.333
The same total soil volume converted to cubic feet, the unit potting soil bags are commonly sold by.
Found this calculator useful?
From Scratch To $10K/Month In 60 Days
This is a proven money making system that takes students by the hand to make at least $10,000 per month, every month. Students get 12 weeks of guided coaching in addition to the "MPS Super Funnel" and tools.
We value your privacy and promise not to sell or misuse your information. Here's our privacy policy.
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Chemistry & Biology calculators
Frequently Asked Questions
How is this different from the mulch and topsoil calculator?
The mulch and topsoil calculator is built for open ground areas like a yard or garden bed. This calculator is built specifically for filling individual containers, pots, or planters, using container-shaped volume formulas instead of a flat ground area.
Should I fill a container to the very top?
Most guides recommend leaving an inch or two of empty space at the top of a container, since filling completely to the rim can cause soil and water to spill over when watering.
Does this account for existing plant roots taking up space?
No, this calculates the full container volume at the given depth. An already-potted plant with an established root ball will need somewhat less added soil than this full-volume estimate.
Spot a mistake? Tell us what's wrong.
Request a calculator. The most-requested ones get built first in our monthly batch.
Request a calculatorWant this calculator on your website?
Embed the Potting Soil Calculator on any site — no code needed. Customize colors, remove branding, and track usage.
