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Cubic Feet Calculator
Last updated: June 19, 2026
A cubic feet calculator is a geometric volume tool that calculates the three-dimensional space of an object or area in cubic feet. It operates by multiplying length, width, and height dimensions, and it supports multiple input units like inches, yards, centimeters, and meters by converting them to feet prior to calculation. This utility is widely used in shipping, construction, and landscaping. Professionals and DIYers use it to determine the exact volume needed for materials like soil, concrete, gravel, shipping boxes, and storage spaces.
Enter length, width, and height in any common unit. We compute the volume in cubic feet, cubic yards, and cubic meters — useful for storage, shipping, refrigeration, and HVAC sizing.
Quick Answer
Calculate the volume of a space in cubic feet. Enter the length, width, and height in your preferred unit to find the capacity.
Measurement unit
Enter all three dimensions in the same unit. Switch units at the top if your measurements are in inches, yards, centimeters, or meters.
Cubic feet
800
10 × 10 × 8 ft
Examples
Refrigerator interior, 28 × 28 × 60 in
≈ 27.2 cu ft
Storage unit, 10 × 10 × 8 ft
= 800 cu ft
Moving box, 18 × 18 × 24 in
≈ 4.5 cu ft
Room, 4 × 5 × 2.4 m
≈ 1,695 cu ft
How it works
All three measurements are converted to feet and multiplied together. The result in cubic feet is then converted to cubic yards and cubic meters using fixed factors.
Volume · L × W × H = cubic feet
1 cu yd = 27 cu ft · 1 cu m ≈ 35.314 cu ft · 1 in = 1/12 ft · 1 yd = 3 ft · 1 m ≈ 3.281 ft
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Frequently asked questions
Multiply length by width by height with all three values in feet. If you measured in inches, divide each measurement by 12 first; if you measured in yards, multiply by 3. The calculator does this for you when you choose a unit.
27. A cubic yard is 3 feet on a side, and 3 × 3 × 3 = 27 cubic feet.
About 35.31. We compute this conversion for you whenever you enter values, regardless of the unit you use.
Sizing freezer or fridge capacity, measuring storage units, calculating pour volumes, sizing shipping boxes, or working out HVAC and ventilation requirements for a room.
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Cubic Yard Calculator
Find the cubic yards you need for concrete, gravel, mulch, or soil from length, width, and depth — with weight estimates.