semkuCubic yard calculator
Add areas and depth.
| Material | Density (lb/cu yd) | Estimated weight |
|---|---|---|
| Gravel | ≈ 2.38 US short tons (4,750 lb) | |
| Sand | ≈ 2.26 US short tons (4,520 lb) | |
| Soil (sandy loam) | ≈ 2.21 US short tons (4,430 lb) | |
| Stone | — | |
| Mulch | 25 bags (2 cu ft each) | |
| 17 bags (3 cu ft each) | ||
Loose-material estimates; use your supplier's density for your material.
Tellus factors in the U.S. EPA table · checked
Tons to cubic yards
For concrete bags, use the Concrete calculator.
Calculation rules
Add each area's volume: rectangle = length × width × depth; circle = π × diameter² / 4 × depth; triangle = base × height / 2 × depth. Multiply each by its quantity. Convert dimensions to the same unit first; 27 cu ft = 1 cu yd and 1 ft = 0.3048 m.
Estimated US short tons = cubic yards × density in lb/cu yd / 2,000. The editable defaults are loose-material factors attributed to Tellus in the U.S. EPA conversion table: gravel 2,565, sand 2,441 and soil/sandy loam 2,392 lb/cu yd. They do not establish the density of your supplier's material.
Mulch bags = total cubic feet / the selected bag volume, rounded up to a whole bag. No compaction, settling or extra allowance is added; account for your required depth in the inputs.
Choose Sand or Stone to show its estimated weight beside the total volume. Stone has no default density; enter your supplier's bulk density in lb/cu yd in the Stone row.
For sand bags, enter the volume printed on the bag in cubic feet. Bags = total cubic feet / bag volume, rounded up to a whole bag from the unrounded volume. No bag size is prefilled. Leave it blank to keep the volume and weight estimate without a bag count.
Cubic yards = US short tons × 2,000 / density in lb/cu yd. Use the density in the selected material's row of the table above.
Volume and tons display two decimal places; pounds display whole numbers, with halfway values rounded up. Bags round up from the unrounded volume. All calculations use unrounded values; the prefilled dimensions are examples.
Frequently asked questions
- How many cubic yards is a 20 ft by 10 ft area, 3 in deep?
- The example is 50.00 cu ft, or 1.85 cu yd and 1.42 m³ after rounding.
- Can I add areas with different shapes?
- Yes. Add each rectangle, circle or triangle with its own depth and quantity; the result totals their volumes.
- Can I use the soil row for topsoil or fill dirt?
- Replace the sandy-loam default with your supplier's density for that material.
- Why does the bag count round up?
- A partial bag still requires another whole bag; 50 cu ft needs 25 two-cubic-foot bags or 17 three-cubic-foot bags.
- What density is used for sand?
- The editable default is 2,441 lb/cu yd for loose sand, attributed to Tellus in the U.S. EPA conversion table. Use your supplier's bulk density when it differs; this value does not represent all wet or compacted sand.
- Which density should I enter for stone?
- Enter your supplier's bulk density in lb/cu yd for the stone and its condition. No default is provided for crushed stone, river rock or pea gravel.
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Calculations run in your browser without sending your calculation inputs or results to the server. See “Privacy on this page” for information about access data.