Cubic Feet & Volume Conversion Calculator
Calculate the volume of 3D shapes (rectangular prisms, cylinders, spheres) in cubic feet and convert to cubic yards, liters, gallons, or cubic meters.
This cubic-feet page is tuned for converting room, box, tank, or delivery dimensions into cubic feet first, then into gallons, liters, cubic yards, and cubic meters.
Calculated Volume Outputs
480.00Cubic Feet (ft³)
Cubic Yards17.7778 yd³
US Gallons3590.65 gal
Liters13592.06 L
Cubic Meters13.5921 m³
Conversion Steps & Formulas:
1. Convert inputs to feet: L = 10.0000 ft, W = 8.0000 ft, H = 6.0000 ft 2. Calculate Volume: V = L × W × H = 480.0000 cubic feet
Frequently Asked Questions
How do I calculate cubic feet?
For a rectangular box, multiply Length × Width × Height (all in feet). If your measurements are in inches, divide each by 12 first, or divide the final cubic inch volume by 1728.
How many gallons are in a cubic foot?
One cubic foot contains approximately 7.48052 US liquid gallons.