Difference Between 2D and 3D (With Table)

The phrases 2D and 3D refer to 2D and 3D representations of space. When describing the appearance or existence of a particular thing in an area, we use terminology such as 2D and 3D to explain the object’s structural characteristics. Whether the item is 2D or 3D is indicated by the use of this symbol (length, breadth, & size). Structures in four sizes, five dimensions, six dimensions, seven dimensions, and so on & so forth are also possible.

2D vs 3D

The main difference between 2D and 3D is that 2D systems do not have Z-axis, resulting in planar or flat figures rather than 3D forms. On the other hand, 3D structures feature an additional Z-axis that allows them to have more depth in their constructions. You can see and comprehend that they exist in three dimensions: length, width, and height; therefore, they are 3D objects. On the other hand, 2D structures do not exhibit this property, and they are only allowed to use two axes to determine their measurements: length and breadth.

In a 2D shape, the object will have a length and a width visible to our eyes. Because their dimension is limited to a 2D structure and does not extend to height, they are frequently referred to as flatforms or plane figures. A sheet of paper, a circle, a square, a rectangle, and a pentagon are some of the most common instances of 2D structures.

A 3D-shaped object will have dimensions apparent to our eyes, such as length, width, and height. Unlike 2D constructions, they do not seem flat or plane when viewed from the front or back. While a 2D building only makes use of two surfaces (the X and Y axes) to compute its measurements, a 3D structure makes use of an additional axis (the Z-axis) to provide more depth to its network.

Comparison Table Between 2D and 3D

Parameters of Comparison2D3D
Axes usedOne-dimensional structures are composed of only two axes, denoted by their initials (x) and finals (y).Three axes, the x-axis, the y axis, and the z-axis, construct a 3D structure.
Defining dimensionsboth in terms of length and widthThe dimensions are the length, width, and height of the object.
Another nameFlat figures or “plane” figures have been used to describe their look.There is no other term for these figures but 3D (3D).
ExamplesEach of the four basic shapes is represented by a symbol.Cuboid, pyramid, cylinder, and prism are all geometric shapes.
VolumeIt is utterly devoid of soundThere is a lot of it.

What is 2D?

A 2D structure is one in which the x- and y-axes define the object’s form in two planes or axes, respectively, as described by the concept of two dimensions. Using the x-axis and y-axis, the only dimensions of a 2D figure are length and width. In contrast to 3D sculptures, these figures do not have any depth, and flat surfaces are the only places where they can be discovered. Their restricted design allows them to cover as much ground as possible while maintaining as little volume as possible.

Our daily lives are surrounded by a kaleidoscope of shapes & intangible structures. We are more likely to encounter 2D & 3D objects among the many different types of arrangements we meet in our everyday lives. Shoes, circular, rectangular, square, and pentagons are excellent examples of 2D systems.

These objects strictly circumscribe both the x-axis and the y-axis, and they cannot cross and overtop these two borders, although this is not the case for 3D models. According to geometrical definitions, 2D things can be thought of as existing in a space between two imaginary dimensions/planes, denoted by the x-axis and the y-axis.

What is 3D?

3D structure defining is to determine the object’s shape, it lives on three planes or axes, namely, the x-axis, the y-axis, and the z-axis. A 3D figure contains length, width, and height, represented by the x, y, and z axes, respectively. A 3D object has a different depth to its structure that extends beyond the limitations of a flat and plane surface; this new dimension, known as the z-axis, has been referred to as the x-axis. The purpose of this additional axis is to reduce the overall height of the figure.

Because they do not exist within the limitations of two dimensions, they are not planes or flatforms but rather contain the volume, which is a significant point of distinction between 2D and 3-dimensional structures.

As previously said, our daily lives are surrounded by various shapes and intangible structures. Of all the many conditions, 2D and 3D objects are the most popular systems we come up with daily. Examples of 3D designs in nature include sheets, cuboids, pyramidal, cylindrical, and prismatic forms.

Main Differences Between 2D and 3D

  1. The x- and y-axes are the only axes used in a 2D construction. In contrast, the x, y, and z axes are used in a 3D structure.
  2. The length and width are the only two sides of a 2D construction. The size, width, and height make up its three faces.
  3. Due to their appearance, 2D figures also are referred to as “plane” figures or “flat” figures. 3D statistics, on the other hand, are merely referred to as such.
  4. The circle, square, rectangle, and pentagon are all 2D structures. Prism, cuboid, pyramid, and cylinder are examples of 3D structures.
  5. The volume of a 2D object is zero, and a 2D structure lacks volume, whereas 3D structures do.


Understanding the axes and planes in which an object or figure occurs might make determining its integrity more intriguing. We can see the length and width of a 2D-shaped item, also known as flat shapes or plane figures. A 3D object, on the other hand, will have a visible length, breadth, and height.

They don’t look flat or plane-like 2D structures, which is unusual for formations of this type. Furthermore, 2D figures lack volume, whereas 3D statistics contain volume. We are surrounded by various shapes & intangible structures in our daily lives, and we’re most likely to encounter 2D and 3D designs in our day-to-day lives.


  1. https://ieeexplore.ieee.org/abstract/document/595268/
  2. https://www.sciencedirect.com/science/article/pii/S0167865507000189