Topsoil Calculator
Calculate topsoil volume for garden beds and lawn projects, then convert it to bags or bulk cubic yards with an optional local cost estimate.
Behind the numbers
How the topsoil calculation works
Area × depth = cubic feet
Cubic feet ÷ 27 = cubic yards
Adjusted volume = volume × (1 + extra allowance)
Cubic feet ÷ 27 = cubic yards
Adjusted volume = volume × (1 + extra allowance)
Bag quantities round up to whole bags. Bulk orders round up to the supplier increment you enter.
Planning tips
Measure each bed separately when shapes or depths differ. If a supplier lists a bag volume or bulk increment, use that product value for the purchase calculation.
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