Compost Bin Size Calculator
Recommended compost bin volume for your household.
Enter your values
Enter the household size in people.
Enter the include yard waste? you are working with.
Choose one of: None, Some (leaves, clippings), Large yard / garden.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- 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
At a glance
| What it does | Recommended compost bin volume for your household. |
|---|---|
| Category | Home & DIY |
| Inputs needed | Household size, Include yard waste?, Yard waste amount |
| Main output | Recommended bin volume |
| Formula | bin volume = people x 1 cu ft + yard waste allowance |
| Cost | Free — no sign-up, no download |
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.
Inputs explained
- Household size(people)
- Enter the household size in people.
- Include yard waste?
- Enter the include yard waste? you are working with.
- Yard waste amount
- Choose one of: None, Some (leaves, clippings), Large yard / garden.
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.
What do I need to enter into the Compost Bin Size Calculator?
Just 3 values: household size, include yard waste?, yard waste amount. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Compost Bin Size Calculator work out the answer?
Recommended compost bin volume scales with household size, roughly 1 cubic foot of capacity per person for kitchen scraps. It applies the formula bin volume = people x 1 cu ft + yard waste allowance and shows the working so you can check each step by hand.
Is the Compost Bin Size Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.