Pea Gravel Weight Calculator

Formulas verified against USGS, NRMCA & ASTM primary sources. Methodology · Last updated May 2026

Most bulk suppliers price pea gravel by weight — not by area. Before you call for a quote, convert your project dimensions to pounds, short tons, kilograms, and metric tonnes. This calculator uses a verified density of 100 lb/ft³ (1,602 kg/m³) from USGS aggregate data.

Cubic Feet
ft³
Cubic Yards
yd³
Weight (lbs)
lb
Weight (tons)
tons
Bags (50 lb)
bags
Estimated Cost
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Pea Gravel Density: What the Numbers Mean

Pea gravel has a loose dry density of 100 lb per cubic foot — equivalent to 1,602 kg/m³ or 1.35 short tons per cubic yard. This figure comes from USGS Construction Sand and Gravel statistics and represents the mid-range density for rounded, water-worn gravel in the 3/8-inch size class.

Three factors shift that density in real projects:

Worked Example: 12×15 ft Patio at 3 Inches Deep

  1. Area: 12 × 15 = 180 sq ft
  2. Depth in feet: 3 ÷ 12 = 0.25 ft
  3. Volume: 180 × 0.25 = 45 cubic feet
  4. Weight in pounds: 45 × 100 = 4,500 lb
  5. Short tons: 4,500 ÷ 2,000 = 2.25 tons
  6. Metric tonnes: 4,500 ÷ 2,205 = 2.04 tonnes
  7. Add 10% waste: 2.25 × 1.10 = 2.48 tons to order

At a typical 2026 bulk price of $45 per ton, this patio costs approximately $112 in pea gravel material. Use the cost calculator to plug in your local supplier's price and get an exact figure.

Pea Gravel Weight Quick Reference

These figures use 100 lb/ft³ dry density. Add 8% for wet conditions.

VolumePounds (lb)Short Tons (US)Kilograms (kg)Metric Tonnes
1 cubic foot100 lb0.0545 kg0.045
1 cubic yard2,700 lb1.351,225 kg1.225
½ cubic yard1,350 lb0.68612 kg0.612
5 cubic feet500 lb0.25227 kg0.227
10 cubic feet1,000 lb0.50454 kg0.454
1 cubic metre3,531 lb1.771,602 kg1.602
1 bag (50 lb)50 lb0.02522.7 kg0.023

Pea Gravel Weight Per Square Foot by Depth

This table answers the structural question: how much load does a pea gravel layer add to a surface? Use it when checking deck, patio slab, or balcony load ratings.

Depthlb per sq ftkg per m²Equivalent to
1 inch8.3 lb/sq ft40.5 kg/m²About 4 bags per 100 sq ft
2 inches16.7 lb/sq ft81.5 kg/m²Standard path depth
3 inches25.0 lb/sq ft122 kg/m²Standard patio depth
4 inches33.3 lb/sq ft163 kg/m²Minimum driveway depth
6 inches50.0 lb/sq ft244 kg/m²Heavy-use driveway
9 inches75.0 lb/sq ft366 kg/m²Playground minimum (ASTM F1292)
Deck and balcony safety: Most residential wood decks carry 40–50 lb per sq ft live load. A 3-inch pea gravel layer adds 25 lb/sq ft — close to the limit before accounting for furniture and people. A 4-inch layer on a standard deck likely exceeds the structural rating. Consult a structural engineer before adding pea gravel to any elevated surface.

Pea Gravel Weight vs Vehicle Payload Ratings

Knowing the weight of your order tells you whether you can self-haul or need delivery. These are real-world payload limits — not the truck name.

VehicleSafe PayloadMax Pea GravelNotes
Sedan / SUV trunk400–600 lb~4 bags (50 lb)Bagged only — no bulk
Half-ton pickup (F-150, Silverado 1500)1,000–1,500 lb0.37–0.56 yd³Spread load evenly in bed
Three-quarter-ton pickup (F-250)2,000–2,500 lb0.74–0.93 yd³Can handle most single-yard orders
One-ton pickup (F-350)3,000–4,000 lb1.1–1.5 yd³Suitable for 1–1.5 yard loads
Single-axle dump truck10,000–14,000 lb4–5 yd³Standard landscape delivery
Tandem-axle dump truck20,000–26,000 lb8–10 yd³Large driveway / commercial orders

Short Ton vs Metric Tonne — Which Does Your Supplier Use?

US landscape suppliers quote in short tons (2,000 lb). Imported product spec sheets and European suppliers use metric tonnes (2,205 lb). The difference is 10.25% — on a 5-ton order that's 500 lb. Always confirm which unit your supplier uses before comparing prices or placing an order.

UnitEqualsCommon in
Short ton (US ton)2,000 lb / 907 kgUS landscape suppliers, quarries
Metric tonne (t)2,205 lb / 1,000 kgEU, UK, spec sheets, some imports
Long ton (UK ton)2,240 lb / 1,016 kgRarely used — mostly historical
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What People Get Wrong

Four weight calculation mistakes that cause short orders, overloaded trucks, and structural damage.

Using a single density figure for all gravel types
Pea gravel density ranges 1.35–1.7 t/yd³ depending on quarry, mineral type, and moisture. Calculators that hardcode "1.5 t/yd³" misquote weight by 200–350 lb per yard. Confirm your supplier's measured density — most quarry invoices list it.
Ignoring moisture weight gain
Wet pea gravel weighs 5–10% more than dry. A 1-yd³ load quoted at 2,700 lb dry arrives at 2,900–3,000 lb after a rainstorm at the quarry. If you're right at your truck's payload limit, a wet load pushes you over.
Confusing US short tons with metric tonnes
A US short ton = 2,000 lb. A metric tonne = 2,205 lb. On a 10-ton order the difference is 1,025 lb — enough to fill an extra wheelbarrow. US suppliers use short tons; spec sheets from imported product often list metric tonnes. Check before comparing quotes.
Overloading a half-ton pickup
The "half-ton" name refers to a historical rating — modern half-ton pickups carry 1,000–1,500 lb payload, not 1,000 lb flat. But that still means 0.37–0.56 cubic yards maximum, not the full yard most people try to load. Overloading blows springs, damages the bed, and is dangerous at highway speed.

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Frequently Asked Questions

How much does 1 cubic yard of pea gravel weigh?
One cubic yard of dry pea gravel weighs approximately 2,700 pounds (1.35 short tons or 1,225 kg). Wet or compacted material runs heavier — up to 3,200 lb per cubic yard. Limestone-based gravel is heavier than granite-based; always confirm your supplier's specific density.
How much does 1 cubic foot of pea gravel weigh?
One cubic foot of pea gravel weighs approximately 100 pounds (45 kg). A standard 50-lb bag contains roughly 0.5 cubic feet of pea gravel.
How much does a 5-gallon bucket of pea gravel weigh?
A 5-gallon bucket filled to the brim with pea gravel weighs approximately 70 pounds. Fill it to 80% capacity — the safer carrying volume — and it weighs closer to 55 pounds.
Will pea gravel damage my deck or balcony?
Pea gravel adds approximately 100 lb per cubic foot of load. A 4-inch layer over a 100 sq ft balcony adds roughly 3,300 lb — far more than most residential decks carry. Consult a structural engineer before putting pea gravel on any elevated surface.
How much pea gravel can a half-ton pickup carry?
A half-ton pickup has a typical payload rating of 1,000–1,500 lb — approximately 0.37–0.56 cubic yards of pea gravel. That's well under half a cubic yard. Overloading damages the suspension and is unsafe on the road.
Can a standard pickup haul a full cubic yard of pea gravel?
A three-quarter-ton or one-ton pickup with reinforced suspension can carry 1.5 tons (approximately 1.1 cubic yards) safely. A standard half-ton truck cannot safely carry a full cubic yard of pea gravel — it exceeds the payload limit.
Does pea gravel get heavier when wet?
Yes. Saturated pea gravel weighs 5–10% more than dry. A cubic yard that weighs 2,700 lb dry can weigh 2,900–3,000 lb after rain. Suppliers quote dry weight — the delivered load may be heavier if it rained at the quarry before loading.
Why does my supplier quote a different weight than the calculator?
Pea gravel density varies by quarry, rock type, and moisture. Limestone-based gravel runs 1.6 t/yd³; granite and river-rock-based gravel runs 1.4 t/yd³. This calculator uses 1.35 t/yd³ as a conservative baseline. Use your supplier's measured density for final orders.
How do I convert pounds to tons?
Divide pounds by 2,000 for US short tons. Divide by 2,205 for metric tonnes. Example: 5,400 lb ÷ 2,000 = 2.7 short tons. 5,400 lb ÷ 2,205 = 2.45 metric tonnes.
How much does a wheelbarrow of pea gravel weigh?
A standard 6 cubic-foot wheelbarrow loaded full with pea gravel weighs approximately 600 lb — too heavy for safe one-person handling. Load it half-full (3 cu ft, approximately 300 lb) for safe operation.
How much does pea gravel weigh per square foot?
At 1-inch depth: 8.3 lb per sq ft. At 2 inches: 16.7 lb/sq ft. At 3 inches: 25 lb/sq ft. At 4 inches: 33.3 lb/sq ft. These figures use 100 lb/ft³ for dry, loose pea gravel. Use the weight-per-sq-ft table above to check structural load ratings.
Do bulk suppliers sell pea gravel by weight or volume?
Most US bulk suppliers sell by the ton. Some sell by the cubic yard. Suppliers weigh trucks on a certified scale before and after loading — you pay for the weight difference. Always request a printed scale ticket on delivery to verify the quantity received.

Sources & Methodology

Density used: 100 lb/ft³ (1,602 kg/m³ / 1.35 short tons per cubic yard) for loose, dry pea gravel.

Formula: Weight (lb) = Volume (ft³) × 100. Short tons = lb ÷ 2,000. Metric tonnes = lb ÷ 2,205. Kilograms = lb × 0.4536.

Verified against:

Last reviewed: May 12, 2026 · Full methodology