Cubic Feet Calculator.
Find volume in cubic feet from length, width, and height. Convert instantly to yards, gallons, liters, and cubic meters.
Why Use a Cubic Feet Calculator?
Cubic feet measure 3D space — shipping boxes, rooms, tanks, and soil. Our free cubic feet calculator multiplies your dimensions and converts to other volume units so you can plan materials and capacity accurately.
How to Calculate Cubic Feet
Convert all sides to feet first (inches ÷ 12, yards × 3, meters × 3.28084). Then multiply. Divide by 27 for cubic yards, or multiply by 7.48052 for US gallons.
Frequently Asked Questions (FAQs)
How do you calculate cubic feet?
Multiply length × width × height after converting all measurements to feet. The result is volume in cubic feet (ft³).
How many gallons are in a cubic foot?
One cubic foot holds about 7.48052 US gallons. Multiply cubic feet by that factor to convert.
How many cubic feet are in a cubic yard?
There are 27 cubic feet in one cubic yard. Divide cubic feet by 27 to get cubic yards.