Concrete Volume Calculator – Guide & Formulas
Calculate raw concrete volume in cubic yards, cubic feet, and cubic meters for any multi-part project design.
Estimate raw volumetric requirements for concrete, aggregate, soil, or gravel projects. Supports multi-part excavations, curved walls, and rectangular trenches with seamless imperial to metric conversion.
Key Takeaway
Use the free Concrete Volume Calculator to calculate raw concrete volume in cubic yards, cubic feet, and cubic meters for any multi-part project design. Get instant results with step-by-step explanations.
How to Use the Concrete Volume Calculator
- Enter the dimensional segments of your project.
- Combine multiple segments (e.g. walkways + patios) into a single master volume.
- Check requirements across cubic yards, cubic meters, tons, or bags.
The Formula
Variable Definitions
- V_total: Sum volume of all project parts
- Y_yards: Converted volume in standard cubic yards
Trench and Pad Combination
You need to pour a small equipment pad (5ft x 5ft x 6" deep) plus an adjacent retaining trench (10ft x 1ft x 1.5ft deep).
- Step 1: Pad volume: 5 × 5 × 0.5 = 12.5 cubic feet.
- Step 2: Trench volume: 10 × 1 × 1.5 = 15 cubic feet.
- Step 3: Combine volumes: 12.5 + 15 = 27.5 cubic feet.
- Step 4: Convert to yards: 27.5 / 27 = 1.02 cubic yards.
Frequently Asked Questions
What is a "Cubic Yard"?
A cubic yard is a measure of volume equal to 3 feet by 3 feet by 3 feet, or exactly 27 cubic feet.
Why is ordered concrete always rounded up?
Concrete deliveries from transit mixers usually require a minimum order, and some material is always lost to spillage, uneven excavation ground, or hose waste.
How much does a cubic yard of concrete weigh?
Standard structural concrete weighs approximately 4,000 pounds (2 tons) per cubic yard.