Weight
Concrete Weight Calculator
Normal concrete is about 150 pounds per cubic foot. That is 4,050 pounds, or just over 2 short tons, per cubic yard.
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Quick answer
Concrete Weight Calculator: normal concrete weighs about 150 lb per cubic foot — 4,050 lb (2.025 short tons) per cubic yard, or about 2,400 kg per cubic metre. Concrete Calculator multiplies your volume by 150, 156 (rebar allowance), or 110 (lightweight).
Concrete Weight Calculator: Why weight matters on a takeoff
A yard on a pickup is a bad idea. Four inches of concrete is about 50 lb/ft² before live load. Decks and elevated slabs need a structural check. Trucks care because a full load is about 20 tons of concrete plus the vehicle.
Crushed concrete and gravel use different densities — use the gravel calculator when the material is stone, not wet concrete. The guide how much does concrete weigh? keeps the rules of thumb in one place.
Worked example with the concrete weight calculator
- 1 yd³ → 4,050 lb → 2.03 tons → ≈ 1,837 kg
- 10×10×4 in (33.3 ft³) → 5,000 lb neat at 150 lb/ft³
- 1 m³ → ≈ 2,400 kg at normal density
- Lightweight 1 yd³ at 110 lb/ft³ → 2,970 lb
Density choices in Concrete Calculator
150 lb/ft³ is normal-weight ready-mix planning density. 156 is a small allowance if you want weight a bit high for rebar. 110 is a lightweight planning figure — confirm with the mix design. None of these replace a structural dead-load calculation for an elevated slab.
Weight of concrete per cubic foot and per yard
150 lb/ft³ is the planning density for normal-weight ready-mix in Concrete Calculator. Multiply by 27 and you get 4,050 lb per yard. Lightweight structural mixes can land near 110–120 lb/ft³ — switch the density control before you trust a tonnage number for an elevated pour.
Per square foot shortcuts help deck conversations: 4 inches ≈ 50 lb/ft², 6 inches ≈ 75 lb/ft², before live load, finishes, or furniture. Those are dead-load planning figures, not a substitute for an engineer’s load takeoff.
Trucks, pickups, and crushed concrete
A cubic yard in a pickup bed is a bad plan even when the volume “fits.” The weight does not. Crushed concrete sold by the ton for driveways uses gravel-style factors — open the gravel calculator instead of the concrete weight tool when the material is recycled stone, not wet mix.
Related tools
Yard and bag calculators share the same volume. Lightweight? Switch density before you trust the tonnage.
- Yard calculator
- Slab calculator
- How much does concrete weigh?
- Tons and cubic yards guide
Frequently asked questions
How much does a yard of concrete weigh?
About 4,050 lb at 150 lb/ft³.
Weight per cubic foot?
About 150 lb normal weight; ~110 lb lightweight.
Does rebar change it?
A little. The 156 lb/ft³ option is a small allowance, not a bar takeoff.
Metric?
Yes — kilograms appear beside pounds; use the metric calculator for metre inputs.
Per square foot for a 4 in slab?
About 50 lb/ft² before live load at 150 lb/ft³.