How much does concrete weigh? Calculate the weight of any concrete volume or structure in pounds, tons, and kilograms. Used for structural loading, transport planning, and demolition estimates.
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Last updated March 2026 by our expert review team
Densities are approximate and vary with aggregate type, water-cement ratio, and curing conditions.
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How we verify our calculatorsStandard concrete weighs about 150 lbs per cubic foot, or 4,050 lbs per cubic yard. That is roughly two tons per yard.
Use our concrete slab calculator to figure out how much concrete you need before calculating weight.
Wet concrete weighs about 10% more than cured concrete because of the water that has not yet evaporated. Plan transport loads based on wet weight.
Planning demolition? Our concrete removal calculator estimates demo costs, dumpster size, and hauling for any concrete structure.
A standard dump truck holds about 20,000 lbs (10 tons). For demolition, expect 12 to 14 cubic yards of broken concrete per truck.
Reinforced concrete with rebar weighs about 4% more than plain concrete. Factor in the extra weight for structural loading and transport.
Lightweight concrete (using expanded shale or clay aggregate) weighs 110 lbs per cubic foot. It is used for roof decks, floor toppings, and insulating fills.
When calculating dead load for a structure, use the density that matches your mix design. Building codes require accurate dead load figures for structural engineering.
Enter the concrete dimensions (length, width, thickness) or a known volume. Select the concrete type.
The calculator converts dimensions to cubic feet, then multiplies by the density of the selected concrete type.
Get weight in pounds, tons, kilograms, and metric tons, plus truck loads needed for transport.
Formulas
Volume = Length x Width x (Thickness / 12)
Weight (lbs) = Volume (cu ft) x Density (lbs/cu ft)
Tons = Weight (lbs) / 2,000
How much does a cubic yard of concrete weigh?
Standard concrete weighs about 4,050 lbs (2 tons) per cubic yard. Lightweight concrete is around 2,970 lbs per cubic yard, and heavyweight concrete used for radiation shielding can reach 6,750 lbs per cubic yard.
How much does an 80lb bag of concrete weigh when cured?
An 80lb bag of dry concrete mix weighs 80 lbs before mixing. Once cured, the finished concrete from one bag weighs roughly the same because the water that was added mostly reacts chemically rather than adding significant mass.
How much does a 10x10 slab weigh?
A 10x10 foot slab at 4 inches thick contains 33.3 cubic feet of concrete. At 150 lbs per cubic foot, it weighs about 5,000 lbs (2.5 tons).
What is the difference between wet and dry concrete weight?
Freshly poured (wet) concrete weighs about 10% more than cured concrete. Fresh concrete runs around 150 lbs per cubic foot, while fully cured concrete settles near 145 lbs. For transport and formwork load calculations, always use wet weight.
How does lightweight concrete compare to standard?
Lightweight concrete uses expanded shale, clay, or slate aggregate instead of gravel. It weighs 110 lbs per cubic foot versus 150 lbs for standard. The tradeoff is lower compressive strength, typically 3,000 to 4,000 PSI versus 4,000 to 5,000 PSI for standard.
How do I calculate dead load from concrete weight?
Dead load equals the concrete density times the thickness. For a 6-inch standard slab: 150 lbs/cu ft times 0.5 ft = 75 lbs per square foot. Building codes use this to size footings, beams, and columns.
What are the transport weight limits for concrete?
A standard dump truck carries about 40,000 lbs gross vehicle weight (roughly 20,000 lbs of payload). A concrete mixer truck holds 10 cubic yards, which weighs about 40,000 lbs. Highway weight limits vary by state but are typically 80,000 lbs total.
How much does a concrete block wall weigh?
Standard 8x8x16 inch CMU blocks weigh about 35 lbs each when filled with grout. A filled block wall weighs roughly 78 lbs per square foot of wall area. An unfilled block wall weighs about 55 lbs per square foot.
A small front walkway section. One person cannot lift this. You need a skid steer or jackhammer for removal.
Standard backyard patio. Weighs as much as two pickup trucks. Requires one dump truck load for demolition removal.
Two-car driveway. This much concrete needs two dump truck loads to haul away. Budget $800 to $1,500 for demolition and disposal.
A grouted CMU block wall at 78 lbs per square foot of face area. Common for retaining walls and property boundaries.
Using dry weight for transport planning
Fresh concrete weighs about 10% more than cured. A 10 cu yd pour weighs roughly 40,000 lbs wet, not 36,000 lbs. Always calculate transport loads using wet weight.
Ignoring rebar weight in structural loads
Reinforced concrete weighs 156 lbs per cubic foot, not 150. On a large structure, that 4% difference adds up fast and can affect footing sizes and beam specs.
Overloading a dump truck
A standard dump truck carries about 20,000 lbs of payload. One cubic yard of concrete weighs over 4,000 lbs. Do not try to fit more than 5 yards in a single truck.
Confusing short tons and metric tons
A US (short) ton is 2,000 lbs. A metric ton is 2,205 lbs. For international shipping or engineering specs, confirm which unit is required before quoting weights.
Assuming all concrete weighs the same
Lightweight concrete is 110 lbs/cu ft while heavyweight shielding concrete is 250 lbs/cu ft. That is more than double the difference. Always match the density to your actual mix design.
Important Disclaimer
These estimates are for planning purposes only. Actual costs vary by location, material availability, and project complexity. Always get at least 3 local quotes. This calculator does not replace professional advice.