📊 Unit Conversion & Lookup Matrix

Gravel Coverage Chart & Quick Lookup Guide

Instant reference chart showing square feet covered per ton and per cubic yard across common installation depths.

📐 Mathematical Conversion Formula: Coverage (sq ft) = (Volume in cu ft) ÷ (Depth in inches ÷ 12)

Reference Conversion Table & Examples

Calculations are based on standard quarry aggregate testing weights at ambient moisture levels.

Layer Thickness	Coverage per Cu Yd	Pea Gravel (1 Ton)	#57 Stone (1 Ton)
1 Inch	324 sq ft	231 sq ft	240 sq ft
2 Inches	162 sq ft	116 sq ft	120 sq ft
3 Inches	108 sq ft	77 sq ft	80 sq ft
4 Inches	81 sq ft	58 sq ft	60 sq ft
6 Inches	54 sq ft	39 sq ft	40 sq ft
12 Inches	27 sq ft	19 sq ft	20 sq ft

Use these verified density constants to perform custom volume-to-weight conversions:

Aggregate Material	Density (lbs/cu yd)	Tons per Cu Yd	Tons to Yds Multiplier
Pea Gravel (3/8")	2800 lbs/yd³	1.4 t/yd³	0.71 yds/ton
Crushed Stone #57 (1/2" - 1")	2700 lbs/yd³	1.35 t/yd³	0.74 yds/ton
Crusher Run / Dense Grade (DGA)	3000 lbs/yd³	1.5 t/yd³	0.67 yds/ton
River Rock (1" - 3")	2600 lbs/yd³	1.3 t/yd³	0.77 yds/ton
Decomposed Granite (DG)	3000 lbs/yd³	1.5 t/yd³	0.67 yds/ton
Drain Rock / Drainage Gravel (1" - 1.5")	2600 lbs/yd³	1.3 t/yd³	0.77 yds/ton
Lava Rock (Red / Black)	1200 lbs/yd³	0.6 t/yd³	1.67 yds/ton

One cubic yard (27 cubic feet) covers exactly 108 square feet at a 3-inch depth (27 / (3/12) = 108 sq ft).

At a 2-inch depth, 1 ton of #57 crushed stone covers approximately 120 square feet, while 1 ton of pea gravel covers roughly 116 square feet.

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We update density presets and formulas regularly based on local quarry feedback.