 # Unit Weight of Building Materials Used In Construction And Differences

The weight of every substance in construction material varies, however, it is important to have knowledge of the basic unit weight and density of a substance or of a material. Here we have explained how a unit or sometimes called specific weight is different from density and how both are calculated, measured, and expressed. So without any further delay let’s get started.

## What is Unit Weight?

Unit weight or what can also be called as a specific weight of any material is its weight per unit volume which means how much weight of the material can be put down in a unit volume. Volume is measured in liters or cubic meters, and weight is measured in kg or kilo Newton. This is why it is written down as KN/m3 in the SI unit and KG/ m3 in the MKS unit system and g/cc in the CGS unit system.

Unit or Specific Weight = Weight / Volume

Here you can easily convert any weight by using this simple tool of lb-to-kg.

## What is Density?

The density of any material or substance is its mass per unit volume and typically measured in KG/ m3 or lb/m3. Density shows the level of compactness of any material or a substance. If the material has more density then it will be more compact.

## What is the difference Between Unit or Specific Weight and Density?

The unit or specific weight of any material or substance is its weight per unit volume, whereas the density of any substance is its mass per unit volume. The two terms can be utilized conversely.

To comprehend the distinction between unit weight and the density first, we need to comprehend the contrast between weight and mass.

Any substance or material on this planet or anyplace has some mass, and it can’t be zero, and it is estimated in kg.  M signifies it.

M = w/g

While weight is a force because of gravity acceleration and it is expressed in Newton. On the off chance that there is no gravity acceleration, it very well might be zero. It is represented by W.

W = m × g

Where g is “acceleration due to gravity”

This gives a clear idea about the difference between unit weight and density.

## Why is Unit Weight Important?

The unit weight is fundamental for weight count purposes. With the assistance of Unit Weight, we can ascertain the heaviness of any material.

It likewise assists with deciding the structure’s weight, which is intended to convey the particular load so it stays unblemished and inside cutoff points.

Unit weight of any material additionally assists with figuring the amount of material needed for specific space.

The density of any material likewise chooses whether it will sink or buoy on water. Assume the substance density is not as much as water’s density. All things considered, it will float, and if the substance density is more than the water’s density, it will sink into the water.

Here is the list of all unit weights and a tool to convert them-lb-to-kg.