DIYCrunch

How to Calculate Mulch for a Walkway

Follow these steps to get the right amount of mulch for any walkway project, then use the calculator below to skip the math.

  1. Measure the area. Multiply length × width in feet to get square footage.
  2. Apply standard depth. A walkway typically uses 4" of mulch.
  3. Convert to cubic yards. Area × (depth in inches ÷ 12) ÷ 27 = cubic yards.
  4. Add overage. Multiply by 1.05 to cover 5% waste.
  5. Round up. Always round up to the next whole cubic yard or bag.

Calculate Mulch

You need

cubic yard

Area
Volume
With 5% overage
Or in 2 cu ft bag
Estimated cost (US avg)