Concrete Weight Calculator

Find how much concrete weighs by entering the volume below. Use our concrete calculator to find the volume of concrete.

How Much Does Concrete Weigh?

A typical concrete mix weighs 150 lbs per cubic foot, 4,050 lbs per cubic yard, or 2,400 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.

How much does a yard of concrete weigh?
4,050 lbs

concrete being poured on a jobsite

How to Find the Weight of Concrete

You can calculate the weight of concrete in a few easy steps. Since the weight is determined by the density and volume, the first step is to calculate the density, then calculate the weight.

Step One: Determine the Density of Concrete

Density is the measure of mass for a given volume and is defined by the formula:

density (p) = mass (m) ÷ volume (V)

The density of concrete is 3.15 g/cm3 while the density of aggregate will vary by the type of stone used. For instance, gravel has a much higher density than vermiculite. The density of a typical concrete mix is 2.4 g/cm3 or 150 lbs/ft3.

Different mixes of concrete will use more or less aggregate as well. For instance, the preferred concrete mix for a countertop will have less aggregate than the mix for a driveway, which will affect the density and thus the weight of the concrete.

Density of concrete in different units of measure
Volume Weight
1 in3 1.39 oz
1 ft3 150 lb
1 yd3 4050 lb
1 m3 2400 kg

Step Two: Determine the Weight of Concrete

The density of concrete is determined by mass and volume, since density is know the formula for mass can be changed by multiplying the density by the volume.

mass (m) = volume (V) × density (p)

Example: Find the weight of 25 cubic feet of concrete


weight = volume × density
weight = 25 × 150
weight = 3,750 lbs

Tip: find the volume using our cubic feet calculator.

Example: Find the weight of 3.5 cubic yards of concrete


weight = 3.5 × 4,050
weight = 14,175 lbs

Tip: you can find the volume in yards using our cubic yards calculator.

Also check our our water weight calculator.