Concrete Weight Calculator
Enter a volume in cubic yards, cubic feet or cubic meters and this concrete weight calculator converts it to pounds, US tons, kilograms and metric tonnes instantly.
Pounds
3,591 lb
≈ 1.8 US tons
Kilograms
1,629 kg
≈ 1.63 metric tonnes
Based on wet concrete at 133 lb/ft³ (2,130 kg/m³). Cured concrete loses only the water to hydration — plan for roughly the same weight when hauling or demolishing.
Formula
Weight is volume times density — for wet concrete, 133 lb/ft³:
pounds = volume (ft³) × 133 US tons = pounds ÷ 2,000 kilograms = volume (m³) × 2,130 metric tons = kilograms ÷ 1,000
Anchor numbers worth remembering: 1 ft³ ≈ 133 lb; 1 yd³ (27 ft³) ≈ 3,591 lb ≈ 1.63 metric tonnes.
Example
- A driveway pour of 2 cubic yards is 2 × 27 = 54 ft³.
- Pounds: 54 × 133 = 7,182 lb — 3.59 US tons.
- Metric: 54 ÷ 35.31 = 1.53 m³ × 2,130 ≈ 3,257 kg — 3.26 tonnes.
- That's well over a full-size pickup's towing comfort — another reason 2 yards arrives by truck, not trailer.
Frequently Asked Questions
How much does a cubic yard of concrete weigh?
About 3,591 lb — 1.80 US tons — using the standard wet density of 133 lb per cubic foot. In metric, one cubic yard (0.765 m³) is roughly 1,629 kg, or 1.63 tonnes.
How much does a cubic foot of concrete weigh?
About 133 lb (60 kg) for standard wet concrete. The mix design moves the number: lightweight aggregate concrete runs 90–115 lb/ft³, while heavy stone mixes reach 150 lb/ft³ and more.
How much does an 80-lb bag of concrete weigh mixed?
Roughly the same as dry — the water it absorbs is about the weight it loses to evaporation during curing. Plan on ~80 lb of hardened concrete from each 80-lb sack, yielding 0.60 ft³.
Why does concrete weight matter?
Three reasons: hauling (a half-ton pickup legally carries about a third of a cubic yard), demolition (dump tickets are by weight), and structure (decks and floors carry the dead load of the concrete above).