Instantly estimate the exact cubic yards, US tons, metric tonnes, and 50 lb bags of pea gravel needed for patios, walkways, pet runs, and landscape ground cover.
Project Dimensions & Depth
Recommended for walkways & patios: 2 to 3 inches.
Required Pea Gravel
Live Output
Estimated Volume
1.85yd³
Cubic Yards (Standard bulk supplier unit)
Estimated Total Weight
2.63Tons
US Short Tons (2,000 lbs/ton @ 105 lbs/ft³)
2.38 t
Metric Tonnes
50.00 ft³
Cubic Feet
~105 Bags
50 lb Retail Bags
~17–25 Loads
Wheelbarrows (2–3 ft³)
Material Density Presets
Popular Material Calculators
Need calculations calibrated for a specific aggregate? Choose from our dedicated stone and rock estimators with pre-configured quarry densities:
Under dry commercial quarry conditions, one cubic yard of standard pea gravel weighs approximately 2,835 pounds, which converts to 1.42 US short tons (or 1.286 metric tonnes). This calculation is based on an industry standard bulk loose density of 105 lbs per cubic foot (1.68 g/cm³).
Quick Conversion Key:
1 Cubic Yard of Pea Gravel = 27 cubic feet = ~2,835 lbs (1.42 US Tons)
1 US Ton of Pea Gravel = ~0.705 cubic yards = ~19.05 cubic feet
1 Cubic Yard in 50 lb Bags = ~57 retail bags
Note on Moisture: Because pea gravel naturally retains thin surface moisture films between round stone contact points, deliveries following rainfall or direct washing can weigh between 2,950 and 3,100 lbs per yard (1.48 to 1.55 tons).
Common Uses for Pea Gravel in Landscaping & Construction
Pea gravel consists of small, smooth, rounded pebbles (typically 3/8-inch diameter, roughly the size of green peas) naturally weathered by river currents or mechanically washed and tumbled. Its rounded profile makes it distinct from angular crushed rock:
Application
Recommended Depth
Why Pea Gravel is Ideal
Garden Walkways & Paths
2 to 3 inches
Smooth round edges provide comfortable walking surfaces for pets and casual footwear while allowing rainwater to permeate into the soil.
Patio Seating & Fire Pits
3 inches
Creates a charming, European-inspired natural patio that drains instantly and prevents standing water. Must be contained with rigid edging.
Dog Runs & Kennels
3 to 4 inches
Safe on pet paws, does not cling to fur, washes clean easily with a garden hose, and eliminates muddy puddles.
Pipe Bedding & French Drains
2 to 4 in bedding, 6 in over pipe
Rounded pebbles settle naturally without sharp edges that could puncture or deform flexible corrugated or PVC drainage pipes.
Decorative Mulch Substitute
2 inches
Suppresses weeds when paired with landscape fabric, does not decompose or attract termites, and retains ground moisture in xeriscape gardens.
Where NOT to Use Pea Gravel:
Avoid using pea gravel on steep slopes or unconfined driveways. Because the stones are round, they do not interlock; vehicle tires sink, spin, and rut, and stones migrate downward on inclines like marbles. For driveways, use angular Crushed Stone or #57 Stone.
Pea Gravel Recommended Depth & Coverage Chart
Depth is the single most critical factor when laying pea gravel. Laying it too shallow exposes the underlying fabric; laying it too deep creates an unstable, spongy surface where walking feels like trudging through deep sand.
Layer Depth
Sq Ft per Cubic Yard
Sq Ft per US Ton (105 lb/ft³)
Best Applications
1 inch (25 mm)
324 sq ft
~228 sq ft
Top dressing existing beds or decorative rock gardens
2 inches (50 mm)
162 sq ft
~114 sq ft
Firm footpaths, walkway overlays, around raised garden beds
2.5 inches (65 mm)
130 sq ft
~91 sq ft
Balanced residential walkways with sturdy border edging
3 inches (75 mm)
108 sq ft
~76 sq ft
Standard patio seating circles, outdoor dining, pet runs
4 inches (100 mm)
81 sq ft
~57 sq ft
Deep drainage envelopes, heavy-use dog kennels, fire pit perimeters
Frequently Asked Questions About Pea Gravel
There are approximately 57 bags of 50 lb pea gravel in one cubic yard (2,835 lbs ÷ 50 lbs = 56.7 bags). If purchasing retail bagged gravel at home improvement centers, round up to 57 or 60 bags to ensure full coverage.
Yes, absolutely. A heavy-duty woven geotextile landscape fabric is essential under pea gravel. It prevents the rounded stones from sinking into the subsoil over time, inhibits weed growth from beneath, and maintains clean stone separation.
Because pea gravel is smooth and rolls easily, rigid bordering is mandatory. Excellent border options include steel commercial edging, treated timber 4x4s, brick pavers set in mortar, or natural cut stone borders raised at least 1/2 inch above the finished gravel line.