Trash Bag Size Calculator
Find the right trash bag size for your bin.
Enter your bin dimensions to get the recommended bag size in gallons or liters.
Recommended Trash Bag Size
Trash bag size is matched to your bin volume. Measure your bin’s height, width, and depth to find the right fit.
Bin Volume (gallons) = (Height × Width × Depth in inches) / 231
Standard bin sizes and matching bags:
- Small wastebasket: 4–8 gallon bags
- Office/Bathroom: 7–10 gallon bags
- Kitchen (standard): 13 gallon bags
- Kitchen (tall): 13–16 gallon bags
- Large indoor: 20–30 gallon bags
- Outdoor wheelie bin: 32–40 gallon bags
- Large outdoor: 42–55 gallon bags
- Contractor/Yard: 55–95 gallon bags
Tips for choosing bags:
- Bag should be 3–4 inches taller than the bin for overhang
- Choose thicker mil (0.9–1.5 mil) for heavy or sharp waste
- Drawstring bags are easier to close and carry
- Scented bags help with kitchen and diaper waste