How to calculate the weight of a brick

Updated February 21, 2017

Brick is a hard block commonly used as the building material. Bricks are primarily made of aluminium silicate (clay) and calcium silicate and have is a rectangular prism shape. You may need to estimate the mass of bricks if, for example, you need to transport them. To calculate the brick weight you need to use the following formula: Weight = (Brick Volume) x (Brick Density).

Measure the brick dimensions (length,width and height) using a ruler. For example, the brick size is 8 by 3 by 2 inches.

Multiply the length, width and height of the brick to calculate its volume. In this example, the volume of the brick is 8 x 3 x 2 = 48 cubic inches.

Multiply the volume in cubic inches by 0.000016 to convert it to cubic metres. In this example, the brick volume is 48 x 0.000016 = 0.000768 cubic metres.

Find out the density of your brick (see Resources). Note that the density of common red bricks is 1,922 kilograms/cubic metres.

Multiply the volume by the density to calculate the brick weight. In this example, the weight is 0.000768 cubic metres x 1922kg/cubic metre = 1.476kg.

Multiply the weight in kilograms by 2.204 to convert it to pounds. In this example, the brick weight is 2.204 x 1.476 = 3.253 pounds.

Things You'll Need

  • Ruler
  • Calculater
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About the Author

Oxana Fox is a freelance writer specializing in medicine and treatment, computer software and hardware, digital photography and financial services. She graduated from Moscow Medical College in 1988 with formal training in pediatrics.