**Calculate weight of concrete slab** | weight of concrete slab in kg | weight of concrete slab per square metre | weight of concrete slab per square foot | weight of concrete slab per cubic foot.

Concrete used for construction of residential, commercial and industrial structure, several projects like bridge, dams, reservoir, Highway Roadways driveway, french drainage system, patio, tunnels, base for retaining walls, drain construction, pavement, road, street, walkaway, and used for slab etc.

Concrete ready mix made of blended mix of Portland cement, sand gravel and other approved ingredient in a required proportion to achieve desired strength, concrete slab are used in patio making, walkway, driveway etc.

Generally weight of concrete slab depending on type of ingredient mixed in it there quantity and proportion, presence of rebar in concrete, grade of concrete, thickness of slab, according to this basis concrete is categorised into three categories rcc concrete, normal weight concrete and lightweight concrete.

The weight of concrete is determined by its density, which can vary based on the amount of aggregate, water, and air in the mix, on average mean density of concrete slab is about 2400 kg/m3, which is exactly equal as 24kN/m3 or 150 lbs per cubic foot, or approximately equal as 4050 lbs per cubic yard.

In United States, based on Imperial measurement system, weight of concrete slab measured in pound per square yard or pound per square foot, 1 cubic, in this article we know about how to calculate weight of concrete slab.

**Calculate weight of concrete slab**

Weight of concrete slab generally based on thickness of slab, thickness of Patio or walkway slab is about 3.5″, thickness of driveway is about 5″, so thickness of slab varies between 4 inch to 8 inch according to construction of project structure, on average generally you take thickness of slab is about 4 inch for calculation of weight of concrete slab.

**Calculate weight of concrete slab**

We can calculate weight of concrete slab estimated by multiplying the volume of slab and density of concrete, the volume is simply represented as Area (V = Area × depth) times the depth. Now you can calculate weight of concrete slab in following steps:-

**Total weight = Volume × density**

1) A concrete slab of dimension 10 feet long by 10 feet wide by 4 inch depth

2) Calculate area of concrete slab = length× width, such as 10’×10′ = 100 sq ft

3) Convert depth into feet, as 4 inch is equal as 0.33 feet

4) calculate volume of concrete slab by multiplying area and their depth as 100 sq ft× 0.33 feet = 33 cubic feet

5) calculate weight of concrete slab by multiplying volume and their density in similar unit as Weight = Volume× density, density= 150lb/ cf, so total weight = 33 cf × 150 lb/cf = 4950 pounds or 2.475 short tons.

In this regard, “Weight of concrete slab per square foot”, to answer this, it is very simple, using Imperial or US customary measurement system, generally weight of concrete slab is about 49.50lb per square foot for 4 inch thick slab, for 3 inch thick concrete slab it will be 37.50 lb/ sq ft, for 5 inch thick concrete slab it will be 62.50lb/sq ft and for 6 inch thick concrete slab it will be 75lb/ square foot.

**Calculate weight of concrete slab in kg**

1) A concrete slab of dimension 4 metres long by 2.5 metres wide by 4 inch depth

2) Calculate area of concrete slab = length× width, such as 4m ×2.5m = 10 sq. m

3) Convert depth into meter, as 4 inch is equal as 100mm or 0.1m

4) calculate volume of concrete slab by multiplying area and their depth as 10 sqm × 0.1m = 1 cubic meter

5) calculate weight of concrete slab by multiplying volume and their density in similar unit as Weight = Volume× density, density= 2400kg/ m3, so total weight = 1 m3 × 2400kg/m3 = 2400 kgs or 2.4 MT.

**Weight of concrete slab per square metre**

In this regard, “weight of concrete slab per square metre”, to answer this, it is very simple, using metric system, generally weight of concrete slab is about 240kg per square metre for 4 inch thick slab, for 3 inch thick concrete slab it will be 180kg/ sqm, for 5 inch thick concrete slab it will be 300kg/ sqm and for 6 inch thick concrete slab it will be 360kg/ square metre.