Free Concrete Volume Calculator
Calculate the volume of concrete needed for any project. Enter length, width, and depth in feet to get results in cubic feet and cubic yards.
feet
feet
feet
Volume (Cubic Yards)
3.70 cu yd
Volume (Cubic Feet)100.00 cu ft
Volume (Cubic Yards) vs Length
How to Calculate Concrete Volume
Formula
Cubic Feet = Length (ft) x Width (ft) x Depth (ft)
Cubic Yards = Cubic Feet / 27
There are 27 cubic feet in one cubic yard (3 x 3 x 3). Always order 5-10% extra concrete to account for spillage, uneven ground, and slight over-excavation.
Example Calculation
A concrete pad 20 ft long, 10 ft wide, and 0.5 ft (6 inches) deep.
- 01Cubic feet = 20 × 10 × 0.5 = 100 cu ft
- 02Cubic yards = 100 / 27 = 3.70 cu yd
- 03Order approximately 4 cubic yards to allow for waste.
Frequently Asked Questions
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How to Calculate Concrete Needed for Any Project
Learn how to calculate the exact amount of concrete needed for slabs, footings, columns, and other projects. Covers volume formulas, waste factors, and ordering tips.