When planning a cleanup, renovation, or construction project, estimating the right dumpster size is essential to avoid overspending or running out of space. A Dumpster Size Calculator helps you calculate the waste volume and suggests the ideal dumpster size for your needs.
This tool is especially useful for homeowners, contractors, and businesses looking to dispose of waste efficiently.
Formula for Waste Volume
The basic formula to calculate the volume of waste is:
Volume (ft³)=Length (ft)×Width (ft)×Height (ft)
Convert Cubic Feet to Cubic Yards
Since dumpsters are measured in cubic yards, we need to convert cubic feet into cubic yards.
Volume (yd³)=27Volume (ft³)
(Note: 1 cubic yard = 27 cubic feet)
Recommended Dumpster Size
After calculating the volume in cubic yards, you can match it to the nearest standard dumpster size:
- 10-yard dumpster – Small cleanouts, garage junk
- 20-yard dumpster – Medium renovations, roofing
- 30-yard dumpster – Large home projects, construction debris
- 40-yard dumpster – Commercial cleanouts, major construction
Example Calculation
Suppose you are estimating waste with the following dimensions:
- Length = 12 ft
- Width = 8 ft
- Height = 5 ft
Step 1: Calculate Volume in Cubic Feet
Volume (ft³)=12×8×5=480ft³
Step 2: Convert to Cubic Yards
Volume (yd³)=27480≈17.78yd³
Step 3: Recommend Dumpster Size
Since the waste volume is about 18 cubic yards, the recommended dumpster would be:
✅ 20-yard Dumpster
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