Skip to main content

Cubic Yard Calculator — Dirt, Gravel, Mulch, Stone

Free cubic yard calculator for dirt, gravel, mulch, stone, and concrete. Calculate how many yards of material you need for your landscaping project.

Updated · By Muhammad Zaigham

Calculate Cubic Yards

How to Use

Select the shape of your area — rectangle, circle, or triangle.

Enter the dimensions, depth, material type, and optional price per cubic yard.

Click Calculate to get cubic yards, weight in tons, bag count (for concrete), and cost.

What is a Cubic Yard Calculator?

A cubic yard calculator helps you determine how much material you need for landscaping, construction, and home improvement projects. It converts your area dimensions and depth into cubic yards — the standard unit used to order bulk materials like concrete, mulch, gravel, topsoil, and sand. It also estimates weight and cost, and for concrete projects, shows how many pre-mixed bags you need.

Frequently Asked Questions

How do I calculate cubic yards?
Multiply length × width × depth (all in feet), then divide by 27. One cubic yard equals 27 cubic feet.
What is a cubic yard?
A cubic yard is a unit of volume equal to 3 feet × 3 feet × 3 feet (27 cubic feet). It is the standard ordering unit for bulk materials like concrete, mulch, gravel, and soil.
How many bags of concrete make a cubic yard?
Approximately 45 bags of 80 lb concrete mix, or 60 bags of 60 lb mix, make one cubic yard.
What shapes are supported?
Rectangle/square, circle (cylinder), and triangle. Select the shape tab that matches your project area.
How much does a cubic yard weigh?
It depends on the material. Concrete weighs about 4,050 lbs/yd³, topsoil about 2,200 lbs/yd³, mulch about 800 lbs/yd³, and gravel about 2,700 lbs/yd³.

Share This Tool

Found it useful? Share it with your friends, classmates, or colleagues.