Mulch Calculator - Cubic Yards
Calculate the exact cubic yards of mulch you need for any garden bed shape. Supports rectangular, circular, triangular, and multiple beds in one calculation.
Square Feet to Cubic Yards Converter
Convert any area in square feet directly to cubic yards of mulch at your desired depth. The fastest sq ft to cubic yards mulch conversion tool available.
How to Calculate Cubic Yards of Mulch
A mulch calculator cubic yards tool converts a two-dimensional surface area into a three-dimensional volume. The standard formula for calculating cubic yards of mulch requires three inputs: length, width, and depth. The depth in inches must first be converted to feet by dividing by 12, then the total cubic footage is divided by 27 to get cubic yards.
How to Calculate Cubic Yards for Circular Beds
For circular garden beds and tree rings, the calculation uses the area of a circle: π × radius². Replace the Length × Width portion of the formula with the circular area:
Example: 8 ft diameter bed at 3" → π × 4² × 0.25 ÷ 27 = 0.47 cubic yards
Why Cubic Yards - Not Cubic Feet?
Bulk mulch at landscape supply companies is priced and sold by the cubic yard. One cubic yard equals 27 cubic feet. Knowing your cubic yardage allows you to order directly from a bulk supplier - which costs 30–50% less per unit than buying retail bags for projects over 3 cubic yards. The mulch cubic yard calculator on this page converts your area dimensions directly to cubic yards, so you can call a supplier and order with confidence.
How Much Does Each Quantity of Mulch Cover?
Select a quantity below to see the square footage covered at 2, 3, and 4 inches deep. Every quantity from 2 to 40 cubic yards of mulch is included.
View Full Coverage Reference Table (2–40 Cubic Yards)
| Cubic Yards | Bags (2 cu ft) | @ 2" Deep | @ 3" Deep ★ | @ 4" Deep |
|---|---|---|---|---|
| 2 cu yd | 27 bags | 324 sq ft | 216 sq ft | 162 sq ft |
| 3 cu yd | 41 bags | 486 sq ft | 324 sq ft | 243 sq ft |
| 4 cu yd | 54 bags | 648 sq ft | 432 sq ft | 324 sq ft |
| 5 cu yd | 68 bags | 810 sq ft | 540 sq ft | 405 sq ft |
| 6 cu yd | 81 bags | 972 sq ft | 648 sq ft | 486 sq ft |
| 7 cu yd | 95 bags | 1,134 sq ft | 756 sq ft | 567 sq ft |
| 8 cu yd | 108 bags | 1,296 sq ft | 864 sq ft | 648 sq ft |
| 9 cu yd | 122 bags | 1,458 sq ft | 972 sq ft | 729 sq ft |
| 10 cu yd | 135 bags | 1,620 sq ft | 1,080 sq ft | 810 sq ft |
| 12 cu yd | 162 bags | 1,944 sq ft | 1,296 sq ft | 972 sq ft |
| 14 cu yd | 189 bags | 2,268 sq ft | 1,512 sq ft | 1,134 sq ft |
| 15 cu yd | 203 bags | 2,430 sq ft | 1,620 sq ft | 1,215 sq ft |
| 20 cu yd | 270 bags | 3,240 sq ft | 2,160 sq ft | 1,620 sq ft |
| 25 cu yd | 338 bags | 4,050 sq ft | 2,700 sq ft | 2,025 sq ft |
| 30 cu yd | 405 bags | 4,860 sq ft | 3,240 sq ft | 2,430 sq ft |
| 40 cu yd | 540 bags | 6,480 sq ft | 4,320 sq ft | 3,240 sq ft |
Mulch Unit Converter - Cubic Feet, Cubic Yards & Bags
Enter any unit and instantly convert to all others. Includes bag-to-yard conversion for 2 and 3 cubic foot bags.
How Many Cubic Yards in a Scoop of Mulch?
A scoop of mulch refers to the amount of bulk mulch loaded into a vehicle using a front-end loader bucket at a landscape supply yard. The volume of a mulch scoop varies by the loader equipment - there is no single standard size.
Half-yard bucket on compact track loaders and small skid steers. Common at retail nurseries and small landscape yards.
The most common bucket size. One full scoop = 1 cubic yard. This is the standard "mulch scoop" pricing unit at most suppliers.
Found at high-volume landscape supply centers. Larger buckets fill truck beds and trailers faster for commercial orders.
How Much Does Each Quantity of Mulch Cover? - Complete Guide
One of the most common questions when calculating mulch in cubic yards is: "How much does X yards of mulch cover?" The coverage depends entirely on the depth you apply. Here is a complete breakdown of every common mulch quantity from 2 to 40 cubic yards.
2 Cubic Yards of Mulch
2 cubic yards of mulch covers 324 sq ft at 2 inches, 216 sq ft at 3 inches, or 162 sq ft at 4 inches deep. Two yards of mulch equals 54 cubic feet and requires 27 bags of 2 cu ft mulch. This is the minimum order size at most bulk mulch suppliers and is ideal for a mid-size garden bed or 2–3 smaller beds combined. Two cubic yards weigh approximately 1,200–1,600 lbs dry.
3 Cubic Yards of Mulch
3 cubic yards of mulch covers 486 sq ft at 2 inches or 324 sq ft at 3 inches deep. Three yards is the breakeven point where bulk delivery typically becomes cheaper than buying retail bags. At $35/yard bulk, 3 yards costs $105 - versus 41 bags × $4.50 = $185 at retail. Three cubic yards weigh approximately 1,800–2,400 lbs depending on mulch type and moisture.
4 & 5 Cubic Yards of Mulch
4 cubic yards of mulch covers 648 sq ft at 2 inches or 432 sq ft at 3 inches. 5 cubic yards of mulch covers 810 sq ft at 2 inches or 540 sq ft at 3 inches. Five yards is one of the most common small-project bulk orders and covers a typical suburban backyard border at 3 inches deep. Five cubic yards weigh approximately 3,000–4,000 lbs.
6, 7 & 8 Cubic Yards of Mulch
Six cubic yards covers 648 sq ft at 3 inches deep. Seven cubic yards covers 756 sq ft at 3 inches. Eight cubic yards covers 864 sq ft - equivalent to mulching a 30 × 29 ft backyard border at the standard 3-inch depth. Projects in this range typically require one standard dump truck delivery load (7–10 yards).
10, 12, 14 & 15 Cubic Yards of Mulch
10 cubic yards of mulch covers 1,080 sq ft at 3 inches and requires one full truck load from most suppliers. At $35/yard, 10 yards costs $350 in material. 12 yards covers 1,296 sq ft. 14 yards covers 1,512 sq ft. 15 cubic yards of mulch is a common commercial property order, covering 1,620 sq ft at 3 inches or an average front-of-building landscape border.
20 Cubic Yards of Mulch & Wood Chips
20 cubic yards of mulch covers 2,160 sq ft at 3 inches deep - the equivalent of a 46 × 47 ft area fully mulched. 20 yards requires 2 standard delivery loads. 20 cubic yards of wood chips behaves similarly in volume but may be less compacted than processed bark mulch, potentially covering slightly more area at the same nominal depth.
25, 30 & 40 Cubic Yards of Mulch
25 yards of mulch covers 2,700 sq ft at 3 inches. 30 yards of mulch covers 3,240 sq ft - a commercial-scale order covering approximately a 57 × 57 ft area. 40 cubic yards of mulch covers 4,320 sq ft at 3 inches and is typically ordered for large commercial properties, parks, HOA common areas, and new construction landscaping projects. Orders of this size should be placed at least 1–2 weeks in advance.
Frequently Asked Questions - Mulch Calculator Cubic Yards
Use the formula: Length (ft) × Width (ft) × Depth (in) ÷ 12 ÷ 27 = Cubic Yards. For a 20 × 10 ft bed at 3 inches deep: 20 × 10 × 0.25 ÷ 27 = 1.85 cubic yards. The mulch cubic yard calculator on this page performs this automatically for rectangular, circular, and triangular beds.
At 3 inches deep: 1,000 × 0.25 ÷ 27 = 9.26 cubic yards. At 2 inches: 6.17 yards. At 4 inches: 12.35 yards. Always round up to the nearest half yard and add a 10% waste factor for uneven terrain and settling.
A standard front-end loader scoop at a landscape supply yard holds approximately 1 cubic yard of mulch. Small loader buckets hold 0.5 yards; large buckets hold 1.5–2 yards. Always confirm the scoop size with your supplier before ordering to ensure accurate cubic yardage.
One "yard of mulch" and one "cubic yard of mulch" refer to the same unit. Both equal 27 cubic feet. The term "yard" in landscaping always means cubic yard - not a linear yard or square yard. One cubic yard covers 108 sq ft at 3 inches deep.
Formula: Square Feet × (Depth in inches ÷ 12) ÷ 27 = Cubic Yards. Example: 500 sq ft at 3 inches = 500 × 0.25 ÷ 27 = 4.63 cubic yards. Use the sq ft to cubic yards converter on this page for instant results without manual calculation.
2 cubic yards covers 324 sq ft at 2 inches deep, 216 sq ft at 3 inches, or 162 sq ft at 4 inches. Two cubic yards equals 54 cubic feet and requires 27 bags of 2 cu ft mulch. It weighs approximately 1,200–1,600 lbs dry.
5 cubic yards of mulch covers 810 sq ft at 2 inches deep or 540 sq ft at the recommended 3-inch depth. That is roughly a 23 × 23 ft area at standard depth. Five yards equals 135 cubic feet and requires 68 bags of 2 cu ft mulch.
10 cubic yards of mulch covers 1,620 sq ft at 2 inches deep or 1,080 sq ft at 3 inches - equivalent to mulching a 33 × 33 ft area at standard depth. Ten yards is one standard dump truck load and costs approximately $250–$500 depending on mulch type and local pricing.
This depends on mulch type and moisture content. Dry shredded hardwood mulch weighs approximately 400–600 lbs per cubic yard, so a ton (2,000 lbs) equals approximately 3.5–5 cubic yards. Wet mulch is heavier - wet shredded wood can reach 1,000 lbs per yard, making a ton equal to roughly 2 cubic yards.
1 cubic yard = 27 cubic feet. Bulk mulch suppliers sell by the cubic yard. Retail bag mulch is sold in cubic feet (typically 2 or 3 cu ft bags). To convert cubic feet to cubic yards, divide by 27. To convert cubic yards to cubic feet, multiply by 27. The unit converter on this page handles both directions instantly.