Square Feet to Cubic Yards Calculator

Total area to calculate Please enter a valid positive number
Material depth or slab thickness Please enter a valid positive number

Live 3D visualization updates as you type

Follow these simple steps to calculate cubic yards from square feet:

  • Step 1: Enter the total square footage of your area in the "Square Feet" field
  • Step 2: Enter the depth or thickness of material needed
  • Step 3: Select whether your depth measurement is in inches or feet
  • Step 4: Watch the 3D shape update in real-time as you enter values
  • Step 5: Review your results including cubic yards, cubic feet, and bag counts
  • Step 6: Download a PDF report if needed for your records or to share with contractors

Common Use Cases:

  • Concrete slabs for driveways, patios, or foundations
  • Soil or mulch for landscaping projects
  • Gravel for driveways or pathways
  • Sand for base layers or leveling

Primary Formula (Depth in Inches):

Cubic Yards = (Square Feet × Depth in Inches) ÷ 324

Alternative Formula (Depth in Feet):

Cubic Yards = (Square Feet × Depth in Feet) 27

Why These Numbers?

  • 1 cubic yard = 27 cubic feet (3 ft × 3 ft × 3 ft)
  • 1 foot = 12 inches
  • Therefore: 27 × 12 = 324 (for inch-based calculations)

Additional Conversions:

  • 1 cubic yard = 27 cubic feet
  • 1 cubic yard ≈ 0.7646 cubic meters
  • 60 lb bag ≈ 0.45 cubic feet
  • 80 lb bag ≈ 0.60 cubic feet