The unit weight of concrete can vary based on its composition, but a common value is around 2400 kg/m³ (kilograms per cubic meter), which is approximately 150 lbs/ft³ (pounds per cubic foot) or 24 kN/m³ (kilonewtons per cubic meter).

Typical concrete is mixture of Portland stone cement fine aggregate (sand) and coarse aggregate with water. If it is used without provided with reinforcement/steel, then it is known as plain cement concrete and if it is used with reinforcement embedded, then it is known as reinforced cement concrete.

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In general, unit weight of concrete is typically from 2,400 to 2,500 kg/m3 measured in kilogram per cubic metre, and when it is measured in pound per cubic foot then it is range from 150 to 156 pounds per cubic foot (lb/ft3).

**What is the unit weight of concrete?**

Unit weight of concrete is defined as ratio of mass of concrete per unit volume, the **density** of **concrete** is a measure of its **unit weight**. **Concrete** is a mixture of Portland **cement**, sand and coarse aggregates/ gravel water, and sometimes some supplementary materials such as fly ash, slag, and various admixtures.

Typically, one cubic yard of dry and cured concrete weighs about 4,050 pounds or approximately 2 tons. A bag concrete weighs about 3,600 pounds per yard. A typical wet concrete weighs slightly more than bag or dry concrete.

Weight of concrete depends on density of material cement, sand ,aggregate are used, water proportion, availability of void percentage in the mix, type of mix proportion and their compaction and shrinkage. Denser the concrete, higher its weight.

Unit weight of concrete is defined as ratio of weight of concrete to its unit volume, weight of concrete measured in kilogram (kg) and its volume is measured in cubic metre (m3), then its unit weight = unit mass/unit volume, represented as W = m/V, where W is concrete unit weights, m for mass and V for volume, it is also known as specific weight of concrete or density of concrete and their SI unit is kilogram per cubic metre (kg/m3).

Concrete unit weight generally depends on the entrapped air and water cement ratio but for estimation of different quantities and for making budget estimation before construction, we take unit weight of PCC (plain concrete cement) as 24KN per cubic meter and for RCC (reinforced cement concrete) as 25KN per cubic metre.

**Unit Weight of concrete in kg/m3, kg/ft3, kN/m3, lbs/ft3 and lbs/in3**

The unit weight of typical concrete is about 4,050 pounds per cubic yard, 150 pounds per cubic foot, 2400 kilograms per cubic meter, 24 kilo-newton per cubic meter, 0.0867 pounds per cubic inch, 0.0024 kilograms per cubic centimeter, or 68 kilograms per cubic feet.

Unit weight of concrete or weight density of concrete is the ratio of the weight of concrete to its per unit volume.

The typical unit mass of concrete is about 0.0867 lb/in3. This means that a cubic inch (1″ x 1″ x 1″) of concrete is typically weighs about 0.0867 pounds.

The typical unit mass of concrete is about 4050 lb/yd^3 (pounds per cubic yard). This means that a cubic yard (1 yd x 1 yd x 1 yd) of typical concrete weighs about 4050 pounds.

The typical unit mass of concrete is about 150 lb/ft^3 (pounds per cubic feet). This means that a cubic feet (1′ x 1′ x 1′) of typical concrete weighs about 150 pounds.

The typical unit mass of concrete is about 2,400 kg/m3 (kilograms per cubic meter). This means that a cubic meter (1m x 1m x 1m) of typical concrete weighs about 2,400 kilograms.

The typical unit mass of concrete is about 24 kN/m3 (Kilo-Newton per cubic meter). This means that a cubic meter (1m x 1m x 1m) of typical concrete weighs about 24 Kilo-Newton.

Typical concrete weight measured in different units like kilogram per metre, which is represented as kg/m3, kilogram per cubic foot, indicated as kg/ft3, kilonewton per cubic meter, indicated as kN/m3, Pounds per cubic foot, indicates as lbs/ft3, Pounds per cubic inch, indicates as lbs/in3, kilogram per cubic centimetre, indicates as kg/cm3, etc.

**Unit Weight of concrete as per IS 456**

As per Indian standard, IS code 456, the typical unit weight of concrete is about **2,400 kg/m3** for plain cement concrete (PCC) and **about** **2,500** **kg/m3** for reinforced cement concrete (RCC).

**Unit Weight of concrete in kN/m3**

The typical unit weight of concrete is about **24 kN/m3** for plain cement concrete (PCC) and **about** **25** **kN/m3** for reinforced cement concrete (RCC).

**Unit Weight of concrete in kg/ft3**

The typical unit weight of concrete is about 68 kg**/ft^3** for plain cement concrete (PCC) and **about** 71 **kg/ft^3** for reinforced cement concrete (RCC).

**Unit Weight of concrete in kg/cm3**

Typical concrete Unit Weight measured in kilogram per cubic centimeter, which is indicated as kg/cm3, so their unit weight in kg/cm3 for PCC (plain concrete cement) is around 0.0024kg per cubic centimeter and for RCC (reinforced cement concrete) is kept around 0.0025kg per cubic centimeter.

**Unit Weight of concrete in lb/ft3 **

Typical concrete unit weight measured in pounds per cubic foot, which is indicated as lb/ft3, so their unit weight in lb/ft3 for PCC (plain concrete cement) is around 133 pounds per cubic foot in dry mix condition which is approximately equal to 3600 lbs per yard, 150 lb per cubic foot or 4050 lb per yard in wet mix and for RCC (reinforced cement concrete) is kept around 156 pounds per cubic foot or 4212 lbs per yard.

**Density of concrete in lb/ft3**

Typically, concrete has a density of **150 pounds per cubic foot (lb/ft3)**, which means that a block of concrete that is one foot wide, one foot long, and one foot high would weigh approximately 150 pounds.

**Unit Weight of concrete in lb/in3**

Typical concrete Unit Weight measured in pounds per cubic inch, which is indicated as lb/in3, so their unit weight in lb/in3 for PCC (plain concrete cement) is around 0.0867 pounds per cubic inch and for RCC (reinforced cement concrete) is kept around 0.0903 pounds per cubic inch.

**Conclusions:**

The unit weight of typical concrete is about 4050 lb/yd^3, 150 lb/ft^3, 2400 kg/m3, 24 kN/m3, 0.0867 lb/inch^3, 0.0024 kg/cm^3, or 68 kg/ft^3.