Cubic Feet Calculator

CBM Calculator allows you to calculate volume in cubic feet. On this Cubic Feet Calculator page you can check cbm calculation for multiple products. In this Cubic Feet Calculator we have six unit of measurement for dimension Centimeter, Meter, Millimeter, Feet, Inch and Yard. For weight you can use Kilogram and Pound. For dimension feet.inch it means you can enter feet and inch together separating with decimal. For example 1.2 will be consider as 1 Feet and 2 Inches.

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Volume Calculation Formula in Cubic Feet Calculator

  • For example if you enter Length (in inch) X Width (in inch) X Height (in inch) / 1728 = Cubic feet (ft3)
  • You can input dimensions in Centimeter, Meter, Millimeter, Feet, Inch and Yard. For weight you can use Kilogram and Pound.

How to use CBM Calculator in Feet for Multiple Products?

On this cubic feet calculator you can add multiple products to get Volume Weight in meter (m3), Volume Weight in feet(f3), Number of Packages Minimum & Maximum in Standard 20 FT Container, Number of Packages Minimum & Maximum in Standard 40 FT Container, and Number of packages Minimum & Maximum in Standard 40 FT High Cube Container.

Steps (If dimension in inches)

  • Length (inch) : Your package length in inch
  • Breadth (inch) : Your package breath in inch
  • Height (inch) : Your package height in inch
  • Weight (lb) : Your package weight in pound
  • Quantity : Number of packages, it only effects the Weight, Volume Weight, and shipment volume.

Results

  • Weight kg/lbs : Shipment weight in kg/lbs
  • Volume Weight kg/lbs : Volume weight of shipment in kg/lbs
  • Volume mt3/ft3: Shipment volume in mt3/ft3
  • 20 FT min/max: Approx. minimum & maximum of packages which can be placed inside standard 20 FT container
  • 40 FT min/max: Approx. minimum & maximum number of packages which can be placed inside standard 40 FT container
  • 40 FT HC min/max: Approx. minimum & maximum number of packages which can be placed inside standard 40 FT High Cube container
For above cubic feet calculator we had used following container dimensions
Container / Dimensions Length (cm) Width (cm) Height (cm)
20 FT Container 589 230 230
40 FT Container 1200 230 230
40 FT HIGH CUBE Container 1200 230 260

How to Calculate Cubic Feet

Calculating cubic feet means determining the volume of an object in cubic feet. One cubic foot is the volume of a cube measuring 1 ft × 1 ft × 1 ft.

cube of 1 feet

Formula for Calculating Cubic Feet

To find the volume of a box-shaped object, use the formula:
If all dimensions are in feet, the result will be in cubic feet.

Volume = length x width x height

Here the Volume is in Cubic Feet and dimensions (length x width x height are in “Feet”)

Practical Applications of Cubic Feet Calculation

Cubic feet calculations are widely used in various real-world applications, including:

  1. Home & Appliances
    • Estimating the capacity of refrigerators, dishwashers, and ovens to ensure proper fit in kitchens.
    • Determining storage space in cabinets, closets, and sheds.
  2. Moving & Shipping
    • Calculating box volumes for packing and shipping to estimate required truck or container space.
    • Determining how much luggage or cargo can fit in a vehicle, trailer, or moving truck.
  3. Construction & Renovation
    • Measuring concrete, sand, or gravel needed for foundations, driveways, and landscaping.
    • Estimating paint, insulation, or drywall coverage for rooms and buildings.
  4. Gardening & Landscaping
    • Calculating the amount of soil, mulch, or compost needed for garden beds and planters.
    • Estimating water volume for ponds, fountains, and irrigation systems.
  5. Storage & Warehousing
    • Assessing warehouse storage capacity for goods and inventory management.
    • Determining the space required for stacking boxes, pallets, or shelving units.
  6. Water & Liquid Storage
    • Estimating water volume in pools, tanks, or aquariums (often converted to gallons).
    • Measuring the storage capacity of barrels and cisterns for rainwater collection.
  7. HVAC & Airflow Systems
    • Calculating the air volume in a room for proper HVAC system sizing and ventilation.
    • Determining the capacity of air ducts and vents to ensure efficient air circulation.
  8. Fuel & Gas Storage
    • Measuring propane, natural gas, or other fuel storage tanks for consumption estimates.
    • Calculating engine displacement volumes for vehicles and machinery.

Cubic feet calculations simplify planning, resource allocation, and cost estimation across multiple industries.

How to Convert Other Units to Cubic Feet

If the dimensions are not in feet, convert them before calculating the volume. Use the following conversions:

  • Inches to feet: Divide by 12.
  • Yards to feet: Multiply by 3.
  • Centimeters to feet: Divide by 30.48.
  • Meters to feet: Multiply by 3.281.

Alternatively, calculate the volume in the given units first, then convert:

  • Inches to cubic feet: Divide by 1,728.
  • Yards to cubic feet: Multiply by 27.
  • Centimeters to cubic feet: Divide by 28,316.847.
  • Meters to cubic feet: Multiply by 35.315.

For mixed-unit dimensions, converting to feet before calculation is recommended to prevent errors.

Example: Converting Inches to Cubic Feet

Consider an oven with dimensions:

  1. Width: 21 inches
  2. Height: 12 inches
  3. Depth: 17 inches
microwave with dimensions

Method 1: Convert Inches to Feet First

Step: 1

First, we will convert the dimension Length, Width & Height from “Inch” to “Feet”

Length: 21 inches divided by 12 = 1.75 Feet

Width: 12 inches divided by 12 = 1 Feet

Height: 17 inches divided by 12 = 1.41 Feet

So, now the converted dimensions are 1.75 ft x 1 ft x 1.41 ft = 2.47 Cubic Feet

Method 2: Convert After Multiplication

Volume in Cubic Inch = 21 x 12 x 17 = 4284 Cubic Inch

Volume in Cubic Feet = 4284 / 1728 = 2.47 Cubic Feet

Both methods yield the same result: 2.47 ft³.

Calculating Cubic Feet of Soil

To determine the cubic feet of soil needed:

  1. Find the area by multiplying length and width. Example: 20 yards × 6 yards = 120 yd²
  2. Multiply by depth to get volume. Example: 120 yd² × 0.5 yd = 60 yd³
  3. Convert to cubic feet by multiplying by 27.

Volume = 60 yd³ x 27 = 1620 Cubic Feet