Loam Calculator - Estimate Cubic Yards, Tons & Cost
Free loam calculator to estimate cubic yards, tons, and cost for your project. Enter length, width, and depth for instant results with delivery pricing.
Loam Calculator - Cubic Yards, Tons & Cost Estimate Formula
Cubic Yards = (Length × Width × Depth in ft) ÷ 27
How to Calculate Loam - Cubic Yards, Tons & Cost Estimate
- 1. Convert depth from inches to feet: Depth (ft) = Depth (in) ÷ 12
- 2. Calculate cubic yards: Cubic Yards = (Length × Width × Depth) ÷ 27
- 3. Calculate tons: Tons = Cubic Yards × 1.15 (loam density)
- 4. Estimate cost: Cost = Cubic Yards × $25 (average price per cubic yard)
Example Calculation
Let's say you're filling a 20ft × 10ft garden bed with 6 inches of loam.
- length: 20
- width: 10
- depth: 6
You need approximately 3.70 cubic yards or 4.26 tons of loam, costing about $92.59
Tips
- Order 10% extra for settling — loam compacts significantly after the first rain
- Loam density is approximately 1.15 tons per cubic yard (2,300 lbs/yd³)
- Screened loam is best for lawns and gardens; unscreened loam may contain rocks and roots
- A cubic yard of loam covers approximately 100 sq ft at a 3-inch depth
Frequently Asked Questions
How much does a yard of loam cost?
A cubic yard of loam costs between $15–$50 depending on your location and whether it is screened or blended. Delivery fees typically add $50–$100 per truckload.
How much loam do I need for my lawn?
For a new lawn, you typically need 4–6 inches of loam. Calculate cubic yards using: (Length × Width × Depth in inches ÷ 12) ÷ 27. Add 10% extra for compaction.
What is the difference between loam and topsoil?
Loam is a specific soil type with a balanced mix of sand, silt, and clay (about 40/40/20). Topsoil is the top layer of soil which may or may not be loam. Screened loam is generally better for planting.