Use this mulch calculator to estimate the amount of mulch or soil needed to cover an area at a specific depth.
To know how many bags of mulch in a yard are required, you can use the formula:
Cubic Yard of Mulch =Square Footage x Desired Depth / 324
Mulch Volume (in cubic yards) = [(Length (ft) × Width (ft) × Depth (ft))/27
One cubic yard of mulch covers around an area of 324 square feet of 1 inch of depth.
It is better to add 5-10% extra mulch for the miscalcations or wastage.
For the irregular shape, break down the area into regular shapes to calculate how many bags of mulch in a cubic yard are required precisely.
Too much mulch can maintain enough moisture to invite decay near your plants.
Mulch Examples
Let's say a garden bed is 10 feet long and 5 feet wide, and apply mulch at a depth of 3 inches. Then calculate how many cubic feet in a yard of mulch is required.
Total Mulch Needed (in cubic yards) = (Length (in feet) × Width (in feet) × Depth (in inches)) / 324
Our mulch calculator utilizes the above formula that also helps you estimate mulch volume if calculated manually.
Total Mulch Needed = (10 ft × 5 ft × 3 in) / 27
Cubic yard of mulch ≈ 0.46cubic yards
Mulch Needed= 12.5 cubic feet (cu ft)
Mulch Needed = 0.35 cubic meters (m3)
Mulch Needed = 353.95 liters
Garden size = 50 sq. ft
No of bales needed = 1.28 sq. ft
| Desired depth | Sq.ft coverage | Approx coverage |
|---|---|---|
| 1 inch | 324 sq. ft | 18' × 18' |
| 2 inches | 162 sq. ft | 13' × 13' |
| 3 inches | 108 sq. ft | 11' × 10' |
| 4 inches | 81 sq. ft | 9' × 9' |
For smooth calculations, we have compiled a detailed chart for standard US mulch bag sizes, considering various depths ranging from 1 to 4 inches. This data is a reliable source for estimating the quantity of mulch required for your landscaping project.
Additionally, we will guide you through a meticulous process of measuring and calculating the precise amount of mulch needed for the area. Ensuring the optimal mulch coverage for your landscaping effort by mulch calculator.
| Desired depth | Coverage per bag |
| 1 inch | 36 sq.ft |
| 2 inches | 18 sq.ft |
| 3 inches | 12 sq.ft |
| 4 inches | 9 sq.ft |