Math & Grading Lab
Learn and practice beginner-friendly fill, slope, and grading concepts
Understanding Volume
Volume tells you how much space a rectangular area takes up — useful for estimating fill material. Multiply length × width × depth to get cubic feet, then divide by 27 to convert to cubic yards.
Volume = Length × Width × Depth
Cubic Yards = Cubic Feet ÷ 27
LengthWidthDepth
Rectangular Volume Calculator
Note: Real job sites may require adjustment for compaction, swell, shrinkage, or field conditions. This tool is for basic learning and estimation practice.