The amount of concrete needed per square meter depends on the thickness of the concrete slab. Typically, for a standard 10 cm (4 inches) thick slab, you would need around 0.1 cubic meters or 0.13 cubic yards of concrete per square meter

Ready mix concrete is mixture of Portland cement, sand and aggregate with some admixture like accelerator, reducer, plasticizer. Each ingredients of concrete required in adequate quantities according to achieve targeted compressive strength or design of a concrete structure.

Ready mix concrete can be used for building or repairing foundation walls, fence post, sidewalks, curbs, steps, shed floor, pergolas, concrete path and ramps and for setting posts and others concrete structure like, footing, slab, beam and columns.

Weight of Ready mix concrete in dry condition is about 133 lbs per cubic foot, 3600 lbs per cubic yard, 17.826lb/ gallon, 21.36kN/ m3, 2.136kg/ litre, 1.234 oz/ inch3, 60kg/ CF, or which is approximately equal as 2136 kg per cubic meter. The weight of concrete is determined by its density, which can vary based on the amount of aggregate, water, and air in the mix.

Volume of required concrete quantity is calculated by multiplying length, width and depth of slab such as volume = length × width × thickness. Typically depth of concrete slab is 100mm (4″), 125mm (5″), 150mm (6″) and 200mm (8″) thick.

The Concrete Calculator estimates the volume and weight of concrete necessary to cover a given area. Purchasing slightly more concrete than the estimated result can reduce the probability of having insufficient concrete

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**How much concrete do i need per square meter**

Typically, for a standard 100 mm (4 inches) thick slab, you would need around 0.1m3 of concrete per square meter, while at 5″ thick, you would need about 0.125m3 of concrete per square meter. Likewise, for a 6 inches thick & one square meter concrete slab, you would need 0.15m3 of concrete, while for a 8 inches thick & one square meter concrete slab, you would need 0.2m3 of concrete.

**How much concrete per square meter at 4″ thick**

How do i figure out how much concrete do i need per square meter depending on thickness of your slab and area of slab which on concrete is poured. Lets do calculation:-

**At 100mm thick:-**

1) Determine how thick you want the concrete, suppose thickness = 100mm, area = 1m2

2) Convert the thickness from mm to meter

Such as 100÷1000 = 0.1 meter

3) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 1m2 × 0.1m = 0.1m3

4) convert cubic meters of concrete in cubic yards by multiplying by 1.3 such as 0.1 × 1.3 = 0.13 cubic yards.

So, typically, for a standard 10 cm (4 inches) thick slab, you would need around 0.1 cubic meters or 0.13 cubic yards of concrete per square meter.

**How much concrete per square meter at 5″ thick**

**At 125mm thick:-**

1) Determine how thick you want the concrete, suppose thickness = 125mm, area = 1m2

2) Convert the thickness from mm to meter

Such as 125÷1000 = 0.125 meter

3) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 1m2 × 0.125m = 0.125m3

4) convert cubic meters of concrete in cubic yards by multiplying by 1.3 such as 0.125 × 1.3 = 0.1625 cubic yards

So, typically, for a standard 125 mm (5 inches) thick slab, you would need around 0.125 cubic meters or 0.1625 cubic yards of concrete per square meter.

**How much concrete per square meter at 6″ thick**

**At 150mm thick:-**

1) Determine how thick you want the concrete, suppose thickness = 150mm, area = 1m2

2) Convert the thickness from mm to meter

Such as 150÷1000 = 0.150 meter

3) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 1m2 × 0.15m = 0.15m3

4) convert cubic meters of concrete in cubic yards by multiplying by 1.3 such as 0.125 × 1.3 = 0.195 cubic yards

Thus, you need 0.15 cubic meters or 0.195 cubic yards of concrete per square meter at 150mm thick.

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**How much concrete per square meter at 8″ thick**

**At 200mm thick:-**

1) Determine how thick you want the concrete, suppose thickness = 200mm, area = 1m2

2) Convert the thickness from mm to meter

Such as 200÷1000 = 0.2 meter

3) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 1m2 × 0.2m = 0.2m3

4) convert cubic meters of concrete in cubic yards by multiplying by 1.3 such as 0.2 × 1.3 = 0.26 cubic yards

Thus, you need 0.2 cubic meters or 0.26 cubic yards of concrete per square meter at 200mm thick.

**How much concrete per square meter at 3″ thick**

**At 80mm thick:-**

1) Determine how thick you want the concrete, suppose thickness = 80mm, area = 1m2

2) Convert the thickness from mm to meter

Such as 80÷1000 = 0.08 meter

3) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 1m2 × 0.08m = 0.08m3

4) convert cubic meters of concrete in cubic yards by multiplying by 1.3 such as 0.08 × 1.3 = 0.104 cubic yards

So, typically, for a standard 80 mm (3 inches) thick slab, you would need around 0.08 cubic meters or 0.104 cubic yards of concrete per square meter.

**How much concrete per square meter at 2″ thick**

**At 50mm thick:-**

1) Determine how thick you want the concrete, suppose thickness = 50mm, area = 1m2

2) Convert the thickness from mm to meter

Such as 50÷1000 = 0.05 meter

3) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 1m2 × 0.05m = 0.05m3

4) convert cubic meters of concrete in cubic yards by multiplying by 1.3 such as 0.05 × 1.3 = 0.65 cubic yards

So, typically, for a standard 50 mm (2 inches) thick slab, you would need around 0.05 cubic meters or 0.65 cubic yards of concrete per square meter.

**Conclusion**:-

You will need approximately 0.1m3 or 0.13 cubic yards of concrete per square meter at standard depth of 100mm (4″) thick while at 125mm (5″) thickness, for 1m2 slab you would need 0.125 cubic meters or 0.1625 cubic yards of concrete.