Potting Soil Calculator
Compute the total volume of potting soil required for flower pots, rectangular planters, or round hanging bowls.
Input Parameters
Enter details for calculation.
Total Soil Volume
Expert Tip
When filling pots, leave about 1 inch of space at the top of the container to allow room for watering without soil overflow.
Calculation Methodology & Details
Formula
Uses geometrical formulas to determine the precise volume of cone-like tapered pots (cylinders), boxes, and bowls. 1 dry quart is approx 1.101 liters.
Important Disclaimer
The calculations provided are for educational and general planning guidelines only. They do not replace professional agronomic advice or certified agricultural testing.
How to Calculate Potting Soil Volume
Follow these steps to find how much potting soil to buy:
Select Container Shape
Choose cylindrical for normal tapered flower pots, box, or bowl.
Measure Interior Sizes
Measure the internal dimensions (diameter, depth, length) of the containers.
Multiply by Quantity
Enter how many matching containers you need to fill.