How Much Mulch for a 12x16 Area?

For a 12x16 area of mulch at 3 inches deep, you need about 1.78 cubic yards - roughly 24 bags (2 cu ft bag). The amount changes with depth; the table below shows common depths, and you can adjust everything in the calculator.

DepthCubic yardsBags
2 in1.1916
3 in1.7824
4 in2.3732

Based on a 12x16 area (192 sq ft). One cubic yard = 27 cubic feet; bags are 2 cu ft bag.

2-3 in to refresh an existing bed, 3-4 in for new beds and weed suppression.

Add prices to estimate cost (optional)

You need about

1.78cubic yards
24
bags (2 cu ft bag)
Shop mulch on Amazon

Measure the length and width of the bed in feet. For an odd shape, break it into rectangles and add them up, or use the round option for circular beds and tree rings.

Pick a depth: 2 to 3 inches refreshes an existing bed, while 3 to 4 inches is better for a new bed because it blocks more light and suppresses weeds.

Other mulch amounts

Same area, other materials

Need a different size? Open the full Mulch calculator →