Calculate the exact amount of topsoil needed for your landscaping project. Get cubic yards, tons, and bag quantities with cost estimates for flower beds, lawns, and gardens.
Screened Topsoil
Filtered to remove rocks and debris, consistent texture. Ideal for lawns and flower beds.
Best for: Lawns, flower beds, general landscaping
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Planning a new garden, lawn renovation, or flower bed? Our topsoil calculator tells you exactly how much soil to buy—in cubic yards, bags, or tons. Get accurate quantities for any project size, compare bulk delivery vs. bagged options, and estimate costs before you shop.
A topsoil calculator determines how much soil you need based on the area dimensions and desired depth. It calculates volume in cubic feet, converts to cubic yards (the standard bulk purchase unit), estimates weight in tons, and tells you how many bags to buy. Different soil types have different densities, which affects weight and cost calculations.
Topsoil Volume Formula
Volume (cu ft) = Length × Width × (Depth ÷ 12)Calculate for standard topsoil, screened topsoil, organic mix, or garden soil—each with accurate density values.
See costs for bulk delivery alongside bagged options to choose the most economical option for your project size.
Know the weight in tons and pounds—essential for planning delivery and ensuring your vehicle or trailer can handle the load.
Use pre-configured settings for common projects like flower beds, raised gardens, and lawn repairs to get instant estimates.
Understand recommended depths for different applications—2 inches for topdressing, 4-6 inches for beds, 12+ inches for raised gardens.
Factor in typical delivery charges for bulk orders to get a complete cost picture for your project budget.
Calculate soil needed to prepare ground for seeding or sodding a new lawn with proper 4-6 inch depth.
Determine the exact amount of organic soil mix needed to fill raised beds for vegetables or flowers.
Plan soil quantities for new landscaping beds along walkways, foundations, or garden borders.
Calculate topdressing amounts to level uneven lawns and improve soil quality for existing grass.
Estimate backfill soil needed when planting trees, ensuring proper soil composition for root growth.
Determine fill dirt quantities for correcting drainage issues or leveling yard slopes.
Compare bulk delivery quotes vs. bagged soil prices to find the best value for your project budget.
Know the weight of your order to ensure your vehicle or trailer can safely transport the load.
A cubic yard of topsoil typically weighs between 1,800-2,400 pounds (0.9-1.2 tons), depending on moisture content and soil type. Dry screened topsoil is around 2,000 lbs/yd³, while wet or clay-heavy soil can exceed 2,400 lbs/yd³. Our calculator uses average densities for each soil type to provide accurate weight estimates.
A cubic yard equals 27 cubic feet, so you'd need approximately 36 bags of 0.75 cu ft topsoil or 27 bags of 1 cu ft topsoil. Bagged soil is convenient for small projects but costs significantly more than bulk—often 3-5x the price per cubic yard.
Topsoil is the upper layer of native earth, screened to remove debris. Garden soil is topsoil enhanced with compost, peat moss, or other amendments to improve drainage and nutrients. Use plain topsoil for filling and grading; use garden soil or organic mix for planting beds where plants will grow.
For new lawns, spread 4-6 inches of quality topsoil before seeding. For overseeding existing lawns, 1-2 inches of topdressing is sufficient. The key is having at least 4 inches of good soil for grass roots to establish—below that, compacted subsoil limits growth.
Most flower beds need 6-8 inches of topsoil. Annual flowers can grow in 6 inches, but perennials and shrubs benefit from 8-12 inches for deeper root systems. For raised beds, fill the entire depth (typically 12-18 inches) with quality soil mix.
Bulk delivery is more economical for projects needing 2+ cubic yards. At $25-50 per cubic yard for bulk vs. $4-6 per 1 cu ft bag ($108-162 per cubic yard), bulk saves 50-75% on material costs. Bags make sense only for small projects under 1 cubic yard or where bulk truck access is impossible.
For a 10×10 foot area (100 sq ft) at 4 inches deep, you need approximately 1.25 cubic yards or about 1.1-1.3 tons of topsoil. At 6 inches deep, you'd need about 1.85 cubic yards. Use our calculator to get exact amounts for your specific depth.
Yes, fresh topsoil typically settles 10-15% after watering and compaction. Order 10-15% extra material and plan to add more to low spots after a few waterings. Avoid over-compacting before planting, as this reduces drainage and makes root growth difficult.
Spring and fall are ideal for topsoil projects. Spring allows plants time to establish before summer heat; fall gives soil time to settle before spring planting. Avoid adding topsoil when ground is frozen or waterlogged, as this compacts soil and reduces quality.
Break irregular areas into rectangles, triangles, or circles. Calculate each section separately and add them together. For rough estimates, measure the longest and widest points, multiply, then reduce by 10-20% for irregular edges. Our calculator works with the average length and width you provide.