Cubic feet calculator
Calculate volume in cubic feet and convert to cubic yards, cubic meters and US gallons. Enter length, width and height and choose if you want to work in feet, inches, yards or meters.
All dimensions below are in: ft.
The tool automatically converts to ft³, yd³, m³ and US gallons.
Example: 1 ft × 1 ft × 1 ft = 1 ft³. 1 ft³ ≈ 7.48 US gallons and ≈ 0.0283 m³.
Useful as a cubic footage calculator for storage, shipping, landscaping and more.
Cubic feet, yards, meters and gallons – volume calculator
This online cubic feet calculator helps you quickly calculate the volume of a box, room, container or any rectangular space. Enter length, width and height in feet (ft), inches (in), yards (yd) or meters (m) and the tool instantly shows the result in cubic feet (ft³), cubic yards (yd³), cubic meters (m³) and US gallons.
Many people search for how to calculate cubic feet, a simple cubic ft calculator or a cubic footage calculator when they are planning a move, ordering materials, calculating shipping volume or filling tanks and pools. The formula is:
Volume = Length × Width × Height
If you work in inches or yards, the calculator converts everything to meters internally and then back to cubic feet, cubic yards, cubic meters and gallons. This also makes it useful as a cubic inch calculator, cubic yard calculator and volume calculator gallons.
You can also treat it as a quick converter: cubic feet to cubic yards, cubic feet to cubic meters and cubic feet to gallons – simply enter a box of 1 × 1 × 1 ft, or any other dimensions, and read off all units at once.
Save this page as your go-to cubic space calculator whenever you are calculating cubic feet or need fast volume calculations for projects at home, in construction, logistics or landscaping.
Frequently asked questions about the cubic calculator
How does the cubic feet calculator work?
Enter the length, width, and height of a space. The calculator multiplies these values and shows the volume in cubic feet, cubic yards, cubic meters, and gallons.
Can I calculate volume in different units?
Yes. You can enter dimensions in feet, inches, yards, or meters. The calculator automatically converts everything to multiple volume units.
Is the calculated volume exact?
The calculation is mathematically exact for rectangular spaces. For irregular shapes, divide the space into smaller boxes and add the results.
Can I use this as a cubic yard or cubic inch calculator?
Yes. The tool also works as a cubic yard calculator and a cubic inch calculator by converting your input to the correct units.
What can I use a cubic calculator for?
It is useful for moving, shipping, construction, landscaping, storage planning, tanks, pools, and material estimates.