Compost Bin Size Calculator
Recommended compost bin volume for your household.
Enter your values
ⓘ Live results
Results
- Recommended bin volume
- 7 cu ft
- Kitchen scrap portion
- 4 cu ft
- Yard waste portion
- 3 cu ft
Quick answer
Recommended compost bin volume scales with household size, roughly 1 cubic foot of capacity per person for kitchen scraps.
bin volume = people x 1 cu ft + yard waste allowance
How to use the Compost Bin Size Calculator
- 1Enter your household size for kitchen scrap volume estimates.
- 2Select how much yard waste (leaves, grass clippings, garden trimmings) you'll add.
- 3Choose a bin sized at or above the recommended total volume for good composting airflow.
Worked example
Using the values the calculator loads with:
Inputs
- Household size4 people
- Include yard waste?1
- Yard waste amountSome (leaves, clippings)
Results
- Recommended bin volume7 cu ft
- Kitchen scrap portion4 cu ft
- Yard waste portion3 cu ft
Frequently asked questions
Can a compost bin be too small?
Yes — undersized bins fill too fast and don't retain enough heat for proper decomposition.
How often should I turn compost?
Every 1-2 weeks for faster hot composting, or less often for slower passive composting.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.