Topsoil Calculator
How much topsoil do you need? Enter your dimensions and depth for an instant estimate in cubic yards, tons, and bags.
Dimensions
You Need
How the Math Works
length x widthsq ft x (depth in inches / 12)cubic feet / 27cubic yards x 1.1 (topsoil averages ~2,200 lbs per cubic yard)total weight in lbs / 40 (rounded up)How Deep for Different Projects
The right depth depends on what you are building. Here is a quick reference for common topsoil applications.
Lawn Repair
Leveling low spots, filling divots, or topdressing after overseeding. Enough to establish good seed-to-soil contact.
Flower Beds
Standard depth for annual and perennial flower beds. Mix with existing soil for best drainage and root growth.
Raised Beds
Vegetable gardens and raised beds need deeper soil. Use a garden mix or compost blend for best results.
When You Need Topsoil
New Construction
Builders often strip or compact native soil. You will need 4-6 inches of quality topsoil before laying sod or seeding a new lawn.
Drainage Problems
Low spots that collect water can be graded with topsoil to redirect drainage away from the house and eliminate puddles.
Garden Beds
Clay-heavy or sandy native soil benefits from a layer of screened topsoil or garden mix to improve water retention and nutrients.
Tree & Shrub Planting
Backfill planting holes with a 50/50 mix of native soil and topsoil to give new plants a nutrient-rich start.
Topsoil Types Explained
Screened Topsoil
Native topsoil run through a screen to remove rocks, roots, and debris. Most affordable option ($25-35/cu yd). Good for fill, grading, and general landscaping.
Garden Mix
Screened topsoil blended with compost and sometimes sand. Better nutrient content ($30-40/cu yd). Ideal for flower beds and vegetable gardens.
Compost Blend
Premium mix with high organic content. Best for raised beds and amending poor soil ($35-45/cu yd). Rich in nutrients, retains moisture well.