Square Feet to Cubic Yards Calculator

Use this square feet to cubic yards calculator to get bulk material volume from an area and depth. Depth in inches is divided by 12 to get feet, then multiplied by the area for cubic feet, and that result is divided by 27. A 500 sq ft area at 4 in. deep is about 6.17 cubic yards.

Last reviewed September 2026Method & sources Report an error

Volume

6.173 cu yd

Breakdown
Volume	6.173 cu yd
Volume	166.7 cu ft

How to Calculate Square Feet to Cubic Yards

Starting from a known area, multiplying by depth (converted from inches to feet) gives volume in cubic feet. Dividing by 27 (since a cubic yard is 27 cu ft) converts to cubic yards, the unit most bulk material suppliers price and deliver by.

Example: 500 sq ft area, 4 in. deep

A 500 sq ft area, 4 in. deep: 1. Depth in feet: 4 ÷ 12 = 0.333 ft 2. Volume: 500 × (4 ÷ 12) = 166.7 cu ft 3. Cubic yards: 166.7 ÷ 27 = 6.17 cu yd

What Is Square Feet to Cubic Yards?

This calculator is for the specific, very common situation of already knowing an area (from a floor plan, a measured space, or a previous calculation). You need cubic yards directly for ordering mulch, concrete, gravel, soil, or another bulk material. It skips both the length and width re-entry and the intermediate cubic feet step.

Square Feet to Cubic Yards: Pros and Cons

Pros

Goes directly from area and depth to cubic yards in one step, skipping the intermediate cubic feet figure most bulk-material orders don't need
Takes depth directly in inches, matching how depth is commonly specified for bulk material
Still reports cubic feet alongside cubic yards, in case a supplier or comparison needs that unit too

Cons

Doesn't calculate area for you. Use the Square Footage calculator first if you don't already have this figure
Doesn't add a waste allowance. See a specific material calculator (Gravel, Concrete Slab, Mulch) for a takeoff that includes one
Assumes a uniform depth across the whole area. A sloped or variable-depth space needs its volume estimated in sections

Frequently Asked Questions

How do I convert square feet directly to cubic yards?

Multiply area by depth (converted to feet) to get cubic feet, then divide by 27. A 500 sq ft area at 4 in. deep is (500 × 0.333) ÷ 27 = 6.17 cu yd.

Why do I need this instead of the Cubic Yards calculator?

The Cubic Yards calculator takes length and width as separate inputs. This calculator is for when you already have a single area figure and just need to add depth, skipping that extra step.

Why is bulk material ordered in cubic yards instead of cubic feet?

Cubic yards is a more practical unit for the volumes involved in landscaping and construction projects, and matches how ready-mix trucks and bulk delivery trucks are loaded and billed.

Does this include a waste allowance for ordering material?

No. This is a plain volume conversion. For an actual material order, use the specific material calculator (Gravel, Concrete Slab, Mulch, and others), which includes an appropriate waste allowance for that material.

How do I convert my cubic yards result to tons?

Use the Cubic Yards to Tons calculator with your material's density, or the specific material calculator if one exists for what you're ordering.

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