Black Mulch Calculator
Black dyed mulch gives beds a crisp look. Enter your bed size and depth for cubic yards and bags.
Shape
Units
Area: 0.0 sq ft
Planning more than one thing? Open the Yard Planner → to trace your whole yard over an aerial photo and total every material at once.
How to measure for mulch
- Measure the length and width of your area in feet.
- Multiply them for square feet (or just enter length and width above).
- Choose a depth — we default to 3 inches for mulch.
- Read your total in cubic yards, or the number of bags.
Black Mulch coverage at a glance (3" deep)
| Area (sq ft) | Cubic yards | Bags |
|---|---|---|
| 100 | 1.0 | 14 |
| 200 | 2.0 | 28 |
| 300 | 3.1 | 42 |
| 500 | 5.1 | 69 |
| 1,000 | 10.2 | 138 |
Includes a 10% overage allowance. Estimates are low-fi — confirm with your supplier.
Frequently asked questions
How much black mulch do I need?
Same as any mulch by volume: at 3 inches deep, one cubic yard covers about 108 sq ft. Enter your numbers above.
Is dyed black mulch safe?
Quality black mulch is typically colored with iron-oxide dye, considered safe for landscaping. Keep dyed mulch out of vegetable beds.