Topsoil Calculator
Whether you're starting a new lawn, filling raised beds, or amending garden soil, knowing exactly how much topsoil to order saves money and multiple delivery trips. Our topsoil calculator converts your project area and desired depth into cubic yards for bulk orders. We also calculate the approximate weight in tons, which helps when arranging delivery or pickup. Get accurate estimates for your landscaping project and order with confidence.
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- Updated 2026-02-04
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4-6" for new lawns, 8-12" for raised beds
Bulk topsoil typically $25-50 per cubic yard
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How It's Calculated
1. Area = Length × Width 2. Volume (cu ft) = Area × (Depth ÷ 12) 3. Cubic Yards = Volume ÷ 27 4. Total Needed = Cubic Yards × (1 + Waste Factor) 5. Weight (tons) = Total Cubic Yards × 1 (approx. 1 ton per cu yd) 6. Material Cost = Total Cubic Yards × Price per Yard 7. Delivery = $50-100 (estimate) Coverage per cubic yard: • 2" deep = 162 sq ft • 4" deep = 81 sq ft • 6" deep = 54 sq ft
Worked Examples
A 40×30 foot lawn at 4" deep: Volume = 1,200 × 0.333 = 400 cu ft = 14.8 cu yd. With 5% waste = 15.5 cu yd. Weight ~15.5 tons. Cost ~$543 + delivery.
A 12×4 foot raised bed at 10" deep: Volume = 48 × 0.833 = 40 cu ft = 1.5 cu yd. With waste = 1.6 cu yd. Weight ~1.6 tons. Cost ~$56 + delivery. Consider pickup for small orders.
A 25×20 foot area at 2" for leveling: Volume = 500 × 0.167 = 83.5 cu ft = 3.1 cu yd. With 10% waste = 3.4 cu yd. Weight ~3.4 tons. Cost ~$119 + delivery.
Assumptions & Waste Factor
- Topsoil weighs approximately 2,000 lbs per cubic yard
- One cubic yard covers 324 sq ft at 1" deep
- Delivery typically adds $50-100 to order cost
- Screened topsoil is preferred for gardens and lawns
- Soil will settle 10-15% after watering
- Minimum delivery is typically 1-2 cubic yards
Topsoil waste is typically low (5%) when spread over defined areas. Add 10% if filling irregular beds or compensating for settling. Soil will compact 10-15% after watering and settling.
Frequently Asked Questions
How much topsoil do I need for a new lawn?
Apply 4-6 inches of topsoil for new lawns over poor soil. If your existing soil is decent, 2-4 inches of topsoil mixed with existing soil is sufficient. Rake smooth and lightly compact before seeding.
How much does a cubic yard of topsoil weigh?
Topsoil weighs approximately 2,000-2,400 pounds per cubic yard depending on moisture content. Wet soil weighs more than dry. Plan for about 1 ton per cubic yard when arranging transport.
What is the difference between topsoil and garden soil?
Topsoil is natural soil from the top layer of ground, sold as-is or screened. Garden soil is topsoil amended with compost, peat, and nutrients. Use garden soil for planting beds; topsoil for filling and grading.
Should I get screened or unscreened topsoil?
Screened topsoil is filtered to remove rocks, roots, and debris, making it better for gardens and lawns. Unscreened is cheaper and fine for fill or areas where appearance doesn't matter. Always ask what you're getting.
Will topsoil settle after installation?
Yes, topsoil settles 10-15% after watering and compacting. Order slightly more than calculated, especially for raised beds. Water thoroughly and add more soil if needed before planting.
Can I pick up topsoil myself?
Yes, if you have a truck or trailer. One cubic yard weighs about 1 ton. Most pickup trucks can handle 1-2 cubic yards. Check your vehicle's payload capacity. Delivery is worth it for large orders.
When is the best time to add topsoil?
Spring and fall are ideal for adding topsoil before planting. Avoid adding soil when ground is frozen or waterlogged. Summer works but requires more watering. Let soil settle 2-3 weeks before planting if possible.
How do I improve poor quality topsoil?
Mix in 2-4 inches of compost to improve structure and nutrients. Add perlite or sand for drainage in clay soil. Test pH and amend as needed. Good soil is about 40% sand, 40% silt, and 20% clay.
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Disclaimer: This calculator provides estimates for planning purposes only. Actual material requirements may vary based on site conditions, installation methods, and other factors. Always consult with a qualified professional before making purchasing decisions.