How Much Does Granite Weigh?

    Free Granite weight calculator — enter your dimensions for instant results

    How much does granite weigh?

    Granite weighs 172 lb/ft³ (2,750 kg/m³)

    Mohs hardness: 6-7 | Used for: Countertops, flooring, monuments, and building facades

    🪨 Granite

    How much does granite weigh?

    Granite weighs 172 lb/ft³ (2,750 kg/m³).

    Key Granite Facts:

    • Density: 2,750 kg/m³ (172 lb/ft³)
    • Hardness: 6-7 on Mohs scale
    • Common uses: Countertops, flooring, monuments, and building facades

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

    Formula: Weight = Volume × Density

    Compare with: Marble • Quartzite

    Related Natural Stone Calculators:

    Formula & Assumptions

    Formula:

    Weight = Volume × Density

    Density Used:

    Granite: 172 lb/ft³ (2750 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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    Real New England Stone, Made Simple

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    Calculating the weight of granite requires three measurements and one material constant. Measure the length, width, and thickness of your granite piece in consistent units, calculate the volume by multiplying all three dimensions together, then multiply the volume by granite's density to get the total weight.

    The formula is straightforward: Weight = Length × Width × Thickness × Density. Granite's density typically ranges from 160 to 180 pounds per cubic foot, with 168 lb/ft³ (2,700 kg/m³) being the most commonly used average for standard granite varieties. Denser black granites like Absolute Black can reach 185 lb/ft³, while lighter varieties like Kashmir White may come in around 158 lb/ft³.

    When working in imperial units, make sure all dimensions are in feet before multiplying. If you measured thickness in inches, divide by 12 to convert to feet. For example, a 1.25-inch thick slab would be 0.104 feet thick.

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