Soil Calculator
Calculate soil volume in cubic yards, feet, meters, and liters plus whole bags, estimated weight, coverage, and cost for lawns, gardens, and raised beds.
Enter finished dimensions and editable product assumptions to estimate soil.
Soil estimate
- Whole bags
- 18
- Order weight
- 1.32 tons
- Area
- 32.00 ft²
- Coverage per yd³
- 27.00 ft²
- Bulk cost
- Enter price
- Bagged cost
- Enter price
Project dimensions and assumptions
Soil calculation details
| Area | 32.00 ft² · 2.97 m² |
|---|---|
| Net volume | 32.00 ft³ · 1.19 yd³ · 906.14 L |
| Order volume | 1.30 yd³ · 1.00 m³ · 996.75 L |
| Whole bags | 18 bags at 2.00 ft³ each |
| Order weight | 2,640.00 lb · 1.32 US tons · 1.20 metric tonnes |
powered by CaliforniaCalculatorTMGet this for your site
What does the Soil Calculator calculate?
The Soil Calculator converts the values you enter into a structured estimate using the formulas and assumptions documented on this page. Use the result to compare scenarios, review the calculation details, and identify sensitive inputs. Check the guide and formula sections before using the estimate for an important decision.
Soil Calculator at a Glance
- Estimates soil for lawns, garden beds, raised beds, planters, and leveling areas.
- Reports net and order volume in cubic feet, cubic yards, cubic meters, and liters.
- Rounds the order to whole bags using the entered package volume.
- Estimates weight from an editable bulk density and coverage from finished depth.
- Compares optional bulk and bagged material costs using user-entered prices.
A Short History of Soil Measurement
Gardeners and growers have long estimated soil from the area and depth of the space to be filled. Modern retail and landscape supply add several practical conversions: cubic yards for bulk delivery, cubic feet or liters for bags, and weight estimates for transport and handling.
What Does This Soil Calculator Do?
The calculator normalizes the entered dimensions, calculates the volume of a rectangular soil layer, multiplies by the number of identical areas, and applies the entered extra-soil percentage. It then estimates whole bags, bulk weight, coverage per cubic yard, and optional bulk and bagged costs.
The outlined bed diagram updates with the calculated area, volume, and extra allowance. It explains the relationship between the values and is not drawn to scale.
Who Should Use It?
Home gardeners, landscapers, contractors, community gardens, nurseries, and material buyers can use it for preliminary soil ordering. Product suitability, drainage, contamination, amendments, plant needs, compaction, and structural loading require project-specific guidance. Review the Soil Calculator assumptions before relying on this result for decisions.
What Problems Does It Solve?
For “What Problems Does It Solve?,” the Soil Calculator organizes the relevant inputs, applies the documented method, and shows a result that can be compared across scenarios. The points below identify the specific considerations and assumptions users should review before relying on the estimate.
- Converts mixed US and metric dimensions before calculating volume.
- Translates the same order into cubic yards, liters, and whole bags.
- Keeps measured volume and extra soil visibly separate.
- Estimates handling weight from the selected soil density.
- Compares entered bulk and bagged material prices on consistent quantities.
Key Benefits
- Flexible units: dimensions, depth, density, and bag size can use the supported US or metric units.
- Visible assumptions: density, extra soil, bag volume, and prices remain editable.
- Purchase planning: whole bags always round upward.
- Transparent comparison: bulk and bagged cost estimates remain separate.
- Reusable output: the calculator supports responsive embed and PDF reporting.
Soil Calculator Definitions
- Inside dimensions
- The usable length and width of the space that will actually hold soil.
- Finished fill depth
- The intended final thickness of the soil layer, not automatically the full wall or planter height.
- Bulk density
- Soil weight per unit of bulk volume, including pore spaces.
- Net volume
- The calculated rectangular volume before extra soil is added.
- Order volume
- Net volume increased by the entered extra-soil percentage.
- Bag volume
- The product volume printed on one bag, entered in cubic feet or liters.
When Should You Use This Calculator?
Use it when filling a raised bed, adding topsoil to a lawn, preparing a planter, leveling a landscape area, or comparing bagged soil with a bulk order. Calculate different soil products or layers separately when their depths, bag sizes, densities, or prices differ.
How the Soil Calculation Works
For “How the Soil Calculation Works,” the Soil Calculator organizes the relevant inputs, applies the documented method, and shows a result that can be compared across scenarios. The points below identify the specific considerations and assumptions users should review before relying on the estimate.
- Convert length, width, and finished depth to compatible base units.
- Multiply length by width and the number of identical areas.
- Multiply area by finished depth to obtain net soil volume.
- Apply the entered extra-soil percentage.
- Divide order volume by entered bag volume and round upward.
- Use density and entered prices for weight and cost estimates.
See the complete soil formulas or follow the worked soil examples.
Choose the Product and Finished Depth Carefully
Topsoil, garden soil, compost blends, potting mixes, and engineered planting media have different properties and intended uses. The calculator estimates quantity but does not determine which product or depth is appropriate.
Bulk density changes with soil texture, organic matter, pore space, compaction, and moisture. Use the supplier's product value when weight affects delivery or loading.
Common Soil Estimating Mistakes
- Measuring outside dimensions instead of the usable fill space.
- Using full wall height when drainage material or headspace occupies part of the bed.
- Assuming every bag contains the same volume.
- Using a generic density when moisture or transport weight matters.
- Adding a settlement allowance twice.
- Comparing bulk and bagged prices without delivery, handling, or leftover material.
Frequently Asked Questions
How do I calculate how much soil I need?
Multiply the inside length by width and finished fill depth. The calculator normalizes the units, multiplies by the number of identical areas, and reports cubic feet, cubic yards, cubic meters, and liters. Review the Soil Calculator assumptions before relying on this result for decisions.
How many bags of soil do I need?
Divide the order volume, including the extra percentage you entered, by the volume printed on one bag and round up to a whole bag. Enter the actual bag size because products vary. Review the Soil Calculator assumptions before relying on this result for decisions.
How many cubic feet are in one cubic yard of soil?
One cubic yard is exactly 27 cubic feet. The amount of area it covers depends on the entered fill depth. For a useful Soil Calculator result, use realistic inputs, compare relevant scenarios, and review the stated assumptions before making a decision.
How much does soil weigh?
Weight equals volume multiplied by bulk density. Soil texture, organic matter, moisture, handling, and compaction change bulk density, so use a supplier or measured value when weight matters. Review the Soil Calculator assumptions before relying on this result for decisions.
Does the calculator estimate soil cost?
Yes. Enter a bulk price per cubic yard, a price per bag, or both. The estimates exclude delivery, labor, taxes, grading, amendments, and other charges. Use realistic inputs and review the Soil Calculator assumptions before relying on this result for decisions.
One Fun Fact About Soil Volume
A one-inch layer spread over 324 square feet uses exactly one cubic yard because 324 × 1/12 equals 27 cubic feet.
Conclusion
A useful soil estimate starts with inside dimensions and the true finished depth. Enter the actual bag size or bulk product information, keep the extra allowance explicit, and compare supplier terms before ordering.
This calculator provides a material-planning estimate. It does not evaluate soil quality, plant suitability, drainage, contamination, amendments, excavation, structural loading, or site safety.