Container Garden Volume Calculator

Calculate potting soil volume, bags needed, and weight for container gardens and raised planters.

Container Diameter/Length

Container Depth

Container Shape

Number of Containers

Tab to move between fields

Total Soil Volume

40 gal

≈ 8 buckets

Soil Bags Needed (1 cu ft)

Volume per Container8 gal

Total Weight (wet)280 lbs

Estimated Soil Cost$48.00

How to Use This Calculator

Enter the container diameter or length in inches — use the diameter for round pots or the length for rectangular planters.
Enter the container depth in inches and select the shape (1=Round, 2=Square, 3=Rectangular).
Enter the number of identical containers so the calculator can total all soil needs.
Review Volume per Container (gallons) and Total Soil Volume to understand your fill requirement.
Use Soil Bags Needed (1 cu ft bags) to plan your shopping trip, and check Estimated Soil Cost to budget the purchase.

How the result changes with Container Diameter/Length

Container Diameter/Length: Diameter for round pots, or length for rectangular containers.
Container Depth: Internal depth of the container.
Container Shape: 1=Round, 2=Square, 3=Rectangular.
Number of Containers: Total number of identical containers.

Identify Input Parameters
4 parameters
Container Diameter/Length = 14, Container Depth = 12, Container Shape = 1, Number of Containers = 5 = 4 input(s) provided
Calculate Total Soil Volume
Total Soil Volume
40 = 40
Calculate Soil Bags Needed
Soil Bags Needed
6 = 6
Calculate Volume per Container
Volume per Container
8 = 8
Calculate Total Weight
Total Weight
280 = 280

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