Cubic Feet Calculator

Calculate volume in cubic feet for any shape

All Tools

Shape

Dimensions

Input Unit

Length (Feet)

Width (Feet)

Height (Feet)

Quick Presets

Volume

640.00

cubic feet (ft³)

Cubic Yards

23.70

Cubic Meters

18.12

US Gallons

4,787.53

Liters

18,122.75

Cubic Inches

1,105,920

Cubic Yards (bags)

whole yards needed

Formula Used

V = L × W × H

= 10 × 8 × 8 ft = 640.00 ft³

Coverage (cubic ft → square ft at depth)

Depth	Square Feet Covered
1" (0.083 ft)	7,680.0 sq ft
2" (0.167 ft)	3,840.0 sq ft
3" (0.250 ft)	2,560.0 sq ft
4" (0.333 ft)	1,920.0 sq ft
6" (0.500 ft)	1,280.0 sq ft
8" (0.667 ft)	960.0 sq ft
12" (1.000 ft)	640.0 sq ft

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About Cubic Feet Calculator

A comprehensive cubic feet calculator that computes volume for rectangles, cylinders, cones, spheres, and triangular prisms. Supports input in feet, inches, yards, centimeters, and meters with automatic conversion. Includes material-specific presets for concrete, soil, mulch, gravel, and wood with cost estimation. Features cubic feet to square feet conversion, unit converter, and visual 3D shape preview. 100% client-side — no data sent to any server.

Cubic Feet Calculator Features

6 shape formulas
5 input units
Material cost estimator
Cubic ↔ square feet converter
Unit conversions
Visual shape preview
Preset material densities

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