Mulch and Gravel Calculator
Estimate cubic yards of mulch or gravel for an area and its weight in tons.
Runs 100% in your browser — nothing is uploaded.
What are you trying to calculate?
You need
2.04
yd³
- Calculated
- 1.85 yd³
- With 10% waste
- 2.04 yd³
- Cubic feet
- 50.0 ft³
- Cubic meters
- 1.42 m³
- Approximate weight
- 2.9 tons
Assumptions
Gravel density ≈ 1.4 t/yd³ (existing published value) · weight is approximate and varies with moisture and stone type · waste applies to the calculated volume.
Formula
yd³ = (length × width × depth/12) ÷ 27
About this calculator
Estimate the amount of mulch needed to cover a garden bed or landscaped area at a chosen depth, and calculate the number of bags or bulk cubic yards required.
How to use
- 1
Enter the Length and Width of the area in feet.
- 2
Enter the Depth in inches.
- 3
Select the Material (Wood mulch, Gravel, or Sand) to see volume in cubic yards and approximate weight in tons.
Frequently asked questions
How deep should mulch be?
A depth of 2–3 inches is typical for flower beds. For paths or play areas, 4–6 inches may be used. Deeper layers can smother plants and retain too much moisture.
How many cubic feet are in a cubic yard?
There are 27 cubic feet in 1 cubic yard (3 ft × 3 ft × 3 ft).
Should I add extra mulch for waste?
It is wise to add 5–10% extra to account for spillage, uneven ground, or settling. For example, if the calculated volume is 50 cu ft, order about 55 cu ft.
Please note: Results are estimates for general information only and are not professional or medical/financial advice.