Does rebar change the weight?

Only slightly — reinforced concrete is a touch heavier (~150–156 lb/cu ft). This uses 150 lb/cu ft as a standard estimate.

Concrete Weight Calculator

Work out how much a concrete slab weighs — in pounds and tons — for hauling, load or disposal planning.

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Concrete weighs about 150 lb per cubic foot (roughly 4,050 lb, or ~2 tons, per cubic yard).

Weight = Volume in cubic feet × 150 lb

A 10 × 10 ft slab at 4 in thick weighs about 5,000 lb (2.5 tons).

Does rebar change the weight?: Only slightly — reinforced concrete is a touch heavier (~150–156 lb/cu ft). This uses 150 lb/cu ft as a standard estimate.