How This Cubic Feet Volume Calculator Works
This volume calculator makes it easy to figure out the cubic footage of any three-dimensional space. Simply enter the length, width, and height, choose your unit of measurement, and the calculator instantly returns:
- Cubic Feet (ft³) – the primary volume unit for most applications
- Cubic Inches (in³) – for smaller measurements and precise calculations
- Cubic Yards (yd³) – for landscaping, concrete, and construction materials
- Cubic Meters (m³) – for international measurements and shipping
Cubic Feet Formula
The basic formula for calculating cubic feet is:
Volume (ft³) = Length × Width × Height
Unit Conversions to Feet:
| Unit | Conversion to Feet |
|---|---|
| Inches | Divide by 12 |
| Yards | Multiply by 3 |
| Meters | Multiply by 3.28084 |
For multiple items:
Total Volume = Volume per Item × Quantity
Common Cubic Feet Calculations
| Application | Dimensions | Volume |
|---|---|---|
| Refrigerator | 3 × 2.5 × 6 ft | 45 ft³ |
| Moving Box | 1.5 × 1.5 × 1.5 ft | 3.375 ft³ |
| Living Room | 12 × 10 × 8 ft | 960 ft³ |
| Shipping Pallet | 4 × 4 × 4 ft | 64 ft³ |
| Concrete Slab | 10 × 10 × 0.5 ft | 50 ft³ (1.85 yd³) |
| 1 Cubic Yard | 3 × 3 × 3 ft | 27 ft³ |
| 1 Cubic Meter | 3.28 × 3.28 × 3.28 ft | 35.315 ft³ |
Example Calculations
Example 1: Moving Truck Estimation
| Variable | Value |
|---|---|
| Length | 20 ft |
| Width | 8 ft |
| Height | 8 ft |
| Total Volume | 1,280 ft³ |
Example 2: Shipping Package (Inches)
| Variable | Value |
|---|---|
| Length | 24 inches (2 ft) |
| Width | 18 inches (1.5 ft) |
| Height | 12 inches (1 ft) |
| Quantity | 5 boxes |
| Volume per Box | 3 ft³ |
| Total Volume | 15 ft³ |
Example 3: Concrete Slab
| Variable | Value |
|---|---|
| Length | 12 ft |
| Width | 10 ft |
| Depth | 0.5 ft (6 inches) |
| Cubic Feet | 60 ft³ |
| Cubic Yards | 2.22 yd³ |
Example 4: Room Volume for HVAC
| Variable | Value |
|---|---|
| Length | 15 ft |
| Width | 14 ft |
| Height | 9 ft |
| Total Volume | 1,890 ft³ |
Example 5: Storage Unit Size
| Variable | Value |
|---|---|
| Length | 10 ft |
| Width | 8 ft |
| Height | 8 ft |
| Total Volume | 640 ft³ |
Cubic Feet Calculator Uses
Moving & Storage
- Estimate moving truck size (10 ft truck = ~400 ft³, 20 ft truck = ~1,200 ft³)
- Determine storage unit size (5×5×8 = 200 ft³, 10×10×8 = 800 ft³)
- Calculate total volume of household belongings
Shipping & Freight
- Calculate dimensional weight for shipping costs
- Determine container capacity (20 ft container = ~1,160 ft³, 40 ft container = ~2,390 ft³)
- Estimate freight costs based on volume
Construction & Renovation
- Calculate concrete volume for slabs, footings, and foundations
- Estimate gravel, soil, or fill material quantity
- Determine insulation volume for walls and attics
- Calculate drywall or material storage space
Home & Room Measurement
- Calculate room volume for HVAC systems
- Determine air purifier or fan capacity needs
- Estimate furniture fit for spaces
Landscaping
- Calculate soil volume for garden beds
- Estimate mulch or gravel quantity
- Determine fill dirt requirements
Volume Conversion Reference
| Unit | Equivalent in Cubic Feet |
|---|---|
| 1 Cubic Inch | 0.0005787 ft³ |
| 1 Cubic Yard | 27 ft³ |
| 1 Cubic Meter | 35.315 ft³ |
| 1 Gallon (US) | 0.133681 ft³ |
| 1 Liter | 0.035315 ft³ |
Cubic Feet Calculator FAQ
What is a cubic feet calculator?
A cubic feet calculator is a free online tool that computes the volume of a space or object in cubic feet (ft³). Simply enter the length, width, and height, and the calculator instantly returns the total volume in multiple unit formats.
What is the formula for cubic feet?
The formula for cubic feet is: Volume = Length × Width × Height. For example, a box that is 2 feet long, 3 feet wide, and 4 feet high has a volume of 2 × 3 × 4 = 24 cubic feet.
How do I calculate cubic feet from inches?
To calculate cubic feet from inches, first convert each dimension from inches to feet by dividing by 12. Then multiply: Volume (ft³) = (Length ÷ 12) × (Width ÷ 12) × (Height ÷ 12).
What is a cubic feet calculator for moving?
A cubic feet calculator for moving helps you estimate the total volume of your belongings to determine the size of moving truck, storage unit, or shipping container you need. Enter the dimensions of each item or space to get the total cubic footage.
How do I calculate the cubic feet of a room?
To calculate the cubic feet of a room, measure the length, width, and height of the room in feet, then multiply: Cubic Feet = Length × Width × Height. This gives you the total air volume for HVAC calculations or storage estimation.
What is a cubic foot?
A cubic foot is a unit of volume equal to the space occupied by a cube with each side measuring exactly 1 foot. It is equivalent to 1,728 cubic inches, 0.037 cubic yards, or 0.0283 cubic meters.
How many cubic feet in a cubic yard?
There are 27 cubic feet in 1 cubic yard (3 feet × 3 feet × 3 feet = 27 cubic feet). This is useful for landscaping, concrete, and soil calculations.
How many cubic feet in a cubic meter?
There are approximately 35.315 cubic feet in 1 cubic meter. This is useful for international shipping and freight calculations.
What is the cubic feet formula for shipping?
For shipping, the cubic feet formula is: Length × Width × Height. Many carriers use dimensional weight (DIM weight) based on cubic feet to determine shipping costs. Our calculator helps you estimate these costs by converting volume to multiple units.
Can I calculate cubic feet for multiple items?
Yes. Our cubic feet calculator includes a quantity field. Enter the dimensions of one item and the quantity, and the calculator automatically multiplies the volume by the number of items to get the total volume.
How do I calculate cubic feet for concrete?
To calculate cubic feet for concrete, measure the length, width, and depth of the area in feet, then multiply: Length × Width × Depth = Cubic Feet. Convert to cubic yards by dividing by 27, as concrete is typically ordered in cubic yards.
What is a cubic feet calculator used for in construction?
In construction, a cubic feet calculator is used to estimate material quantities like concrete, gravel, soil, insulation, and lumber. It also helps calculate room volumes for HVAC systems and storage space for building materials.