Materials & Topdressing Calculator

Planning a turf project starts with knowing how much material you need. Whether you’re spreading sand, compost, manure, mushroom soil, lime, fertilizer, or topsoil, accurate measurements are the key to success. Our Materials Calculator takes the guesswork out by instantly showing you the cubic feet and cubic yards required based on your turf project size and desired application depth.

Use this tool to:

  • Estimate material volumes for golf greens, lawns, sports fields, and landscaping projects
  • Plan your budget and delivery needs with suppliers
  • Choose the right spreader for your project
0.0 cu. ft.

1 cu ft compost = ~50lbs
1 cu ft topsoil = ~75lbs
1 cu ft sand = ~100lbs
27 cubic feet = one cubic yard.

Now that you know your material volume, see which spreader is right for your job

Why Application Depth Matters

The amount of sand, compost, or topsoil you apply directly impacts turf and plant health and performance. Here’s why certain depths are commonly recommended:

  • Sand (1/8″ to 3/8″) → Improves drainage, firms surfaces, and smooths imperfections. Too much sand can stress turf, so light, consistent applications work best. While sand does not improve nutritional profile, it will not break down over time, which makes it ideal for smoothing the surface.
  • Compost (~1/4″) → Adds organic matter, boosts microbial activity, and improves soil structure. Over-application can smother grass, so thin layers are recommended. Compost has impressive nutrition and typically brings value to the grass itself, however, it isn’t ideal for leveling because it will break down into the soil over time.
  • Topsoil (1/4″–1/2″) → Levels lawns, fills depressions, and repairs damaged areas. Deep topsoil applications are often combined with seeding for best results. A clean topsoil is best to ensure good application, easy consistency and no debris that would otherwise cause future issues.

Looking for organic material? Explore our national map of compost suppliers to source quality compost and topsoil for your turf project.

Materials & Topdressing Calculator FAQ

How do I calculate the amount of sand or compost I need?

Measure your lawn or turf area in square feet, choose your application depth (e.g., 1/8”), and enter the numbers in our calculator. The tool will instantly show the cubic feet and cubic yards required.

How much sand should I use for topdressing a lawn?

For routine lawn care, 1/8″ of sand (~0.4 cubic yards per 1,000 sq. ft.) is ideal. For leveling or repairing, up to 1/4″ may be applied, but avoid burying grass blades.

What’s the right amount of compost for topdressing?

Around 1/4″ is recommended. This improves soil structure and fertility without suffocating turf. Lighter, more frequent applications can maintain soil health over time.

Why use topsoil for lawn leveling?

Topsoil is heavier and more stable than compost. Thin applications of 1/4″–1/2″ fill low spots and create a smooth, even lawn surface.

Which spreader should I use for different materials?

Visit our What Do You Want to Spread? page to match materials with the best Earth & Turf spreaders — from compact drop spreaders to high-capacity tow-behind topdressers.