How Much Does Concrete Weigh?

    Free Concrete weight calculator — enter your dimensions for instant results

    How much does concrete weigh?

    Concrete weighs 150 lb/ft³ (2,400 kg/m³)

    Used for: Foundations, buildings, roads, bridges, and infrastructure

    🪨 Concrete

    How much does concrete weigh?

    Concrete weighs 150 lb/ft³ (2,400 kg/m³).

    Key Concrete Facts:

    • Density: 2,400 kg/m³ (150 lb/ft³)
    • Common uses: Foundations, buildings, roads, bridges, and infrastructure

    Use this calculator to determine concrete weight by entering your dimensions below.

    Formula: Weight = Volume × Density

    Compare with: Brick • Cinder Block

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    Related Questions:

    How to calculate concrete weight?•What is the density of concrete?•Material weight formulas

    Formula & Assumptions

    Formula:

    Weight = Volume × Density

    Density Used:

    Concrete: 150 lb/ft³ (2400 kg/m³)

    Note:

    Results are estimates based on average material densities. Actual weights may vary ±5% due to material composition and moisture content. For structural applications, verify with your supplier.

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    Concrete weight depends on its volume and the specific mix used. The formula is the same as any material: Weight = Volume × Density. For standard concrete, the density is approximately 150 pounds per cubic foot (2,400 kg/m³), though this varies based on the aggregate type, water content, and whether the concrete is wet or cured.

    Wet concrete fresh from the truck weighs more than cured concrete because of its higher water content. Freshly poured concrete typically weighs about 150 lb/ft³, while fully cured concrete comes in around 145 lb/ft³ after the excess water has evaporated over the 28-day curing period.

    To calculate the weight of a concrete slab, measure the length, width, and thickness, convert all measurements to feet, multiply them together to get cubic feet, then multiply by 150 lb/ft³. For cubic yards (the standard ordering unit from ready-mix plants), multiply cubic feet by the density and divide by 27, or simply know that one cubic yard of concrete weighs approximately 4,050 pounds or just over 2 tons.

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