Lawn Topdressing Sand and Compost Calculator
Calculate sand and compost topdressing volume in cubic yards for a lawn from area and depth, with tons of material for ordering.
How This Calculation Works
Topdressing volume in cubic feet equals length times width times depth in feet. Dividing by 27 converts to cubic yards. A 5,000 square foot lawn topdressed a quarter inch deep needs about 3.9 cubic yards. Multiplying cubic yards by the material density gives tons.
Field Calibration & Rate Reference Chart
| Area | Square feet | Acres | Square field side |
|---|---|---|---|
| 1,000 sq ft | 1,000 | 0.023 | 32 ft |
| 5,000 sq ft | 5,000 | 0.115 | 71 ft |
| 10,000 sq ft | 10,000 | 0.230 | 100 ft |
| 0.25 acre | 10,890 | 0.250 | 104 ft |
| 0.5 acre | 21,780 | 0.500 | 148 ft |
| 1 acre | 43,560 | 1.000 | 209 ft |
| 5 acres | 217,800 | 5.000 | 467 ft |
| 10 acres | 435,600 | 10.000 | 660 ft |
| 40 acres | 1,742,400 | 40.000 | 1,320 ft |
| 100 acres | 4,356,000 | 100.000 | 2,087 ft |
Common Questions
How much topdressing does my lawn need?
Apply a quarter inch or less per application, which is about 1 cubic yard per 1,000 square feet. Repeat over several seasons to build the surface. Deeper layers smother the grass.
How do I convert topdressing depth to cubic yards?
Multiply area in square feet by depth in feet, then divide by 27. A 5,000 square foot lawn at a quarter inch needs about 3.9 cubic yards. Multiply by density for tons.
What is the best topdressing mix?
A blend of sand and compost, matched to the existing soil, improves the surface without creating a contrasting layer. Pure sand can create a hard layer, and pure compost can hold too much water. Test the soil to choose the ratio.
When should I topdress a lawn?
Topdress during active growth, usually in spring or early fall, so the grass recovers quickly. Combine it with aeration for the best result. Avoid topdressing during heat or drought stress.