Compost Calculator
Figure out how much compost you need for a bed or pile — by the cubic yard or by the bag.
You’ll need about…
Compost
That’s
Standard 1.5 cu ft bags
Wheelbarrow loads (roughly)
How it’s figured
- Cubic feet = area (sq ft) × depth (in) ÷ 12
- Cubic yards = cubic feet ÷ 27
- Bags = cubic feet ÷ 1.5, rounded up (standard bag size)
- Wheelbarrow loads = cubic feet ÷ 3 — a heaped wheelbarrow holds roughly 3 cu ft, so this is approximate