Supplysum
Menu
ConcretePaintFlooringRoofingStairsAll calculators

Mulch Calculator

Bags or cubic yards of mulch for your bedsRuns in your browser

Mulch needed
1.85 yd³
2 cu ft bags
25
Cubic feet
50
Bulk cubic yards
1.85

Rough material cost (cheapest option)

$74
Bagged: 25 × price per bag
$
Bulk: 1.85 × price per cubic yard
$

Bulk is usually cheaper above about 2–3 cubic yards, plus delivery. Rough 2026 US prices.

Material estimates only. Round up, buy a little extra, and check with your supplier. Structural work (footings, framing, roofs) must follow local building codes; consult a licensed contractor where required.

Also works as:how much mulch do I needmulch bag calculatorbark mulch calculator

How it works

Formulas

Volume (ft³) = area (sq ft) × depth (in) ÷ 12
Bags = volume ÷ bag size (ft³), rounded up

Worked example

Input: 200 sq ft of beds, 3 in deep, 2 cu ft bags.

  1. 200 × 3 ÷ 12 = 50 ft³ = 1.85 yd³.
  2. 50 ÷ 2 = 25 bags.

Result: 25 bags, or about 1.85 cubic yards in bulk.

How to use

  1. 1Enter the total bed area (length × width of each bed, added up).
  2. 2Enter the depth, usually 2–3 inches.
  3. 3Pick the bag size to see how many bags, or use cubic yards for bulk delivery.

FAQ

How many bags of mulch are in a yard?

13.5 bags of 2 cubic feet, 9 bags of 3 cubic feet, or 18 bags of 1.5 cubic feet. A cubic yard is 27 cubic feet.

How much area does a 2 cu ft bag cover?

About 8 square feet at 3 inches deep, or 12 square feet at 2 inches.

Can I use metric units?

Yes. Switch to Metric and enter meters and centimeters; results show cubic meters, square meters or tonnes alongside US units.

Related tools

Gravel CalculatorTons and cubic yards of gravel, stone or sandConcrete CalculatorCubic yards and bags for slabs, footings, postsPaint CalculatorGallons of paint for a room, walls and ceilingFlooring CalculatorSquare feet and boxes of laminate, LVP, woodTile CalculatorHow many tiles and boxes, with grout linesDrywall CalculatorSheets, mud, tape and screws for a room