Free Compost Calculator
Calculate Compost for Gardens & Soil Amendment
Soil amendment: 1-2″
📋 Compost Application Guide
- Vegetable gardens: 1-2″ worked into soil
- Flower beds: 1″ mixed into top 6″
- Lawn topdressing: 1/4-1/2″ raked in
❓ Compost Calculator FAQ
How much compost do I need for my garden?
Apply 1-2 inches. Cu Yd = (L×W×D/12) ÷ 27. 10’×10′ at 2″ = 0.62 cu yd.
How many bags of compost per cubic yard?
27 bags of 1 cu ft per cubic yard. Bulk is cheaper for 100+ sq ft.
How often should I add compost?
Vegetable gardens: annually. Flower beds: every spring. Lawns: annually.
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