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How Much Compost for 1,500 Square Feet?

9.26cubic yards

at 2 inches deep — about 250 bags (1 cu ft each) or 4.63 tons

Depth	Cubic yards	Cubic feet	1 cu ft bags	Approx. tons
1 in	4.63 yd³	125 ft³	125	2.31
2 in (typical)	9.26 yd³	250 ft³	250	4.63
3 in	13.9 yd³	375 ft³	375	6.94

For amending beds, spread 1–3 inches of compost and work it into the top 6 inches of soil. For lawn top-dressing, ¼–½ inch is plenty.

The math: 1,500 sq ft × depth in feet ÷ 27 = cubic yards. One cubic yard of compost covers 324 sq ft at 1" · 162 sq ft at 2" · 108 sq ft at 3".

Compost compresses — if it will sit in a pile for weeks before spreading, order about 10% extra.

Different area?