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Mulch calculator / Mulch bags per cubic yard

Bag-size reference

How Many Bags of Mulch Are in a Cubic Yard?

Use the bag-size chart below to convert one cubic yard of bulk mulch into whole bags. The count depends on the bag's printed cubic-foot volume, so check the label before ordering.

Planning note: These are quantity conversions, not a supplier quote. Product settling, overfill, and delivery minimums can change what you should order.

One cubic yard = 27 cubic feet

Bags per cubic yard by bag size

Whole bags needed for 27 cubic feet, rounded up
Bag volume Calculation Whole bags
0.5 ft³27 ÷ 0.5 = 5454 bags
1 ft³27 ÷ 1 = 2727 bags
1.5 ft³27 ÷ 1.5 = 1818 bags
2 ft³27 ÷ 2 = 13.514 bags
2.5 ft³27 ÷ 2.5 = 10.811 bags
3 ft³27 ÷ 3 = 99 bags

Formula: whole bags = ceiling(27 ÷ bag volume in cubic feet). A partial bag cannot cover a full cubic yard, so the result is rounded up.

Use your own area

Convert a measured bed into bags

Find cubic feet

For a rectangle, multiply length × width × depth in feet. If depth is in inches, divide the depth by 12 first.

Use the printed bag size

Divide the bed's cubic feet by the bag volume printed on the package. Do not assume every bag is 2 cubic feet.

Round up

Round the bag result up to a whole bag. For multiple beds, calculate each area separately when depth or bag size changes.

Check bulk pricing

Twenty-seven cubic feet equals one cubic yard. Compare the whole-bag total with a supplier's bulk-yard minimum and delivery terms.

Worked example

A 10 × 10 ft bed at 3 inches

The bed is 100 square feet. At 3 inches deep, its volume is 25 cubic feet. With 2-cubic-foot bags, 25 ÷ 2 = 12.5, so you need 13 whole bags before any allowance for settling or waste.

For exact rectangles, circles, mixed units, or several areas, use the mulch coverage calculator. For a quick depth reference, see the mulch coverage chart.

Common questions

Mulch bag chart FAQ

Is one cubic yard always 27 cubic feet?

Yes. A cubic yard is a volume unit equal to 3 ft × 3 ft × 3 ft, or 27 cubic feet.

Why does a 2-cubic-foot bag count as 14 bags?

One cubic yard is 27 cubic feet. 27 ÷ 2 = 13.5, and a partial bag cannot be purchased as a complete bag, so the count rounds up to 14.

Should I add extra bags?

Only if your site conditions or supplier guidance call for an allowance. Keep the measured quantity separate from any extra amount so the basis stays clear.

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