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Gravel for 120 sq ft
Gravel for 120 ft² at 4 in deep · 80 × 0.5 ft³ (≈50 lb) bag
Gravel for 120 ft² by depth
| Depth | yd³ | ft³ | Bags | Tons | Bulk / bagged cost |
|---|---|---|---|---|---|
| 2 in | 0.74 | 20.0 | 40 | 1.04 | $37 / $220 |
| 3 in | 1.11 | 30.0 | 60 | 1.56 | $56 / $330 |
| 4 in | 1.48 | 40.0 | 80 | 2.07 | $74 / $440 |
| 6 in | 2.22 | 60.0 | 120 | 3.11 | $111 / $660 |
Driveways usually need 4–6 in of compacted base plus a top layer; paths and patios 2–4 in. Gravel weighs about 1.4 tons per cubic yard.
How it is calculated
Volume = area × depth: 120 ft² × (4 ÷ 12) ft = 40.0 ft³; ÷ 27 = 1.48 yd³. 120 ft² is, for example, a 11.0 × 11.0 ft square or a 12 × 10 ft strip.
FAQ
How much gravel do I need for 120 square feet?
At 4 in deep, 120 ft² needs 1.48 cubic yards (40.0 ft³) – about 80 × 0.5 ft³ (≈50 lb) bag. That weighs roughly 2.1 tons.
Is it cheaper to buy gravel in bulk or bags for 120 sq ft?
At typical prices ($50/yd³ bulk vs $5.50 per bag) bulk costs about $74 versus $440 in bags, before delivery. Bulk delivery usually wins above about 1 cubic yard.
Other areas: 50 ft² · 75 ft² · 100 ft² · 150 ft² · 200 ft² · 250 ft² · all areas · gravel calculator
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