Mulch Bagged vs Bulk Mulch: Which Is Cheaper?
Short answer: it depends on how much you need. Compare one cubic yard of bulk mulch with 13.5 bags of 2 cu ft at your local prices, then add the delivery fee; because delivery is a fixed cost, bags tend to win on small jobs and bulk on large ones.
Key takeaways
- 1 cubic yard = 27 cu ft = 13.5 bags of 2 cu ft, 9 bags of 3 cu ft or 18 bags of 1.5 cu ft.
- Bulk is cheaper when (price per yard × yards) + delivery is less than the cost of the bags.
- Delivery is a fixed fee, so bags usually win small jobs and bulk wins big ones.
- Compare bag sizes by price per cubic foot, not price per bag.
- Always round bag counts up to the next whole bag.
Prices vary a lot by region and season, so instead of quoting numbers that go stale, here is the math to compare the two options with your own local prices.
The key conversion
1 cubic yard = 27 cubic feet = 13.5 bags of 2 cu ft (or 9 bags of 3 cu ft).
Break-even formula
Bulk is cheaper when:
(price per yard × yards) + delivery fee < price per bag × number of bags
Per yard, bulk wins when the bulk price per yard is lower than 13.5 × the price of one 2 cu ft bag — before delivery. Delivery is a fixed fee, so it matters a lot for small jobs and very little for big ones.
Worked example (illustrative prices)
Suppose a 2 cu ft bag costs $4 and bulk mulch costs $40 per yard plus $60 delivery. For 2 yards: bags = 27 × $4 = $108; bulk = 2 × $40 + $60 = $140, so bags win. For 6 yards: bags = 81 × $4 = $324; bulk = 6 × $40 + $60 = $300, so bulk wins. Replace these with your local prices — the calculator does it for you.
Find your break-even quantity
Instead of pricing every job twice, work out once how many yards it takes for bulk to pay off:
Break-even yards = delivery fee ÷ (13.5 × price of a 2 cu ft bag − bulk price per yard)
With the illustrative prices above: 13.5 × $4 = $54 worth of bags per yard. Bulk saves $54 − $40 = $14 per yard, so the $60 delivery fee is paid off at $60 ÷ $14 = 4.29 yards. Below that, bags win (as in the 2-yard example); above it, bulk wins (as in the 6-yard example).
The result is very sensitive to the per-yard gap. If those bags cost $3 instead, 13.5 × $3 = $40.50 per yard, bulk saves only $0.50 per yard, and you would need 120 yards to cover delivery. If the bulk price per yard is equal to or higher than 13.5 bags, bags always win. Picking bulk up yourself removes the delivery fee, so bulk wins as soon as its price per yard is lower.
Compare bag sizes by cost per cubic foot
Bags come in different sizes, so the cheapest bag is not always the cheapest mulch. Convert everything to price per cubic foot:
| Format | Units per cubic yard | Price per cubic foot |
|---|---|---|
| 1.5 cu ft bag | 18 bags | Bag price ÷ 1.5 |
| 2 cu ft bag | 13.5 bags | Bag price ÷ 2 |
| 3 cu ft bag | 9 bags | Bag price ÷ 3 |
| Bulk | 1 yard | Price per yard ÷ 27 (plus delivery) |
Example: a $4 bag of 2 cu ft is $2.00 per cubic foot; bulk at $40 per yard is $40 ÷ 27 = $1.48 per cubic foot before delivery. When you buy bags, round up: 2.5 yards × 13.5 = 33.75, so you need 34 bags of 2 cu ft (or 2.5 × 9 = 22.5, so 23 bags of 3 cu ft). Read the volume on the label rather than assuming a size, and use our yards-to-bags chart for quick conversions.
Other things to weigh
- Bags: easy to carry, store and spread a little at a time; more plastic waste.
- Bulk: less packaging and usually cheaper for big jobs, but you need a spot for the pile and a wheelbarrow.
- Quality: ask what the bulk mulch is made of and whether it is dyed.
Before you order, decide on the material: see types of mulch compared.
Frequently asked questions
How many bags of mulch equal a yard?
A cubic yard is 27 cubic feet, so it equals 13.5 bags of 2 cu ft, 9 bags of 3 cu ft or 18 bags of 1.5 cu ft.
Is it cheaper to buy mulch in bulk or in bags?
It depends on the quantity and the delivery fee. Compare (price per yard × yards) + delivery with the cost of 13.5 bags of 2 cu ft per yard; because delivery is fixed, bulk tends to win on bigger jobs.
How many yards of mulch do I need before bulk is worth it?
Divide the delivery fee by what bulk saves per yard (13.5 × bag price − bulk price per yard). With illustrative prices of $4 per bag, $40 per yard and $60 delivery, the break-even is 4.29 yards.
How do I compare mulch prices per cubic foot?
Divide the bag price by the bag size in cubic feet, and divide the bulk price per yard by 27. Then add the delivery fee to the bulk total before comparing.
How many 2 cu ft bags of mulch do I need for 2.5 yards?
2.5 × 13.5 = 33.75, so buy 34 bags of 2 cu ft. With 3 cu ft bags you need 2.5 × 9 = 22.5, so 23 bags.