Rectangular Prism Calculator (Cuboid)

  • Enter the length (L), width (W), and height (H) of the cuboid in the respective input fields.
  • Select the desired units from the "Select Units" dropdown menu.
  • Click the "Calculate" button to calculate the volume, surface area, and diagonal length of the cuboid.
  • The results will be displayed below, and you can copy them to the clipboard using the "Copy Results" button.
  • Your calculation history will be shown in the "Calculation History" section.
  • You can clear the results and start over using the "Clear Results" button.
Volume: - -
Surface Area: - -
Diagonal Length: - -
Calculation History:

    What is Rectangular Prism?

    A rectangular prism, also known as a rectangular cuboid, is a three-dimensional geometric shape characterized by six rectangular faces, twelve edges, and eight vertices (corners). It is a specific type of prism where all the faces are rectangular in shape, and the opposite faces are congruent and parallel.

    All Formulae Related to Rectangular Prism

    1. Volume of a Rectangular Prism (V):
      • The volume of a rectangular prism is the measure of the space it occupies.
      • Formula: V = length × width × height
    2. Surface Area of a Rectangular Prism (SA):
      • The surface area of a rectangular prism is the total area of all its six faces.
      • Formula: SA = 2lw + 2lh + 2wh
        • Where l = length, w = width, and h = height
    3. Diagonal Length of a Rectangular Prism (d):
      • The diagonal length of a rectangular prism is the longest distance between two opposite corners.
      • Formula: d = √(l² + w² + h²)
        • Where l = length, w = width, and h = height

    Practical Uses of Rectangular Prism

    Rectangular prisms have practical applications in various fields due to their common and versatile shape. Here are some practical uses of rectangular prisms in everyday life and various industries:

    1. Packaging and Shipping:
      • Many products are packaged and shipped in rectangular prism-shaped containers or boxes due to their efficiency in utilizing space.
    2. Building and Construction:
      • Rectangular prisms are used as building blocks for constructing walls, columns, and various structural components in architecture.
    3. Furniture Design:
      • Furniture pieces like cabinets, drawers, and bookshelves are designed using rectangular prisms to maximize storage space.
    4. Storage Containers:
      • Plastic bins, storage boxes, and crates are rectangular prisms, making them suitable for organizing and storing items.
    5. Electrical Components:
      • Many electrical and electronic devices, such as batteries and circuit boards, are housed in rectangular prism-shaped enclosures.

    Benefits of Using the Rectangular Prism

    Using rectangular prisms offers several benefits and advantages in various applications and industries. Here are some of the key benefits of using rectangular prisms:

    1. Efficient Use of Space: Rectangular prisms are space-efficient shapes, making them ideal for storage, packaging, and transportation. They can be stacked neatly, maximizing the use of available space.
    2. Stability: The flat and parallel faces of rectangular prisms provide stability and balance, making them suitable for building, furniture design, and architectural structures.
    3. Ease of Manufacturing: Rectangular prisms are relatively simple to manufacture, which can lead to cost savings in production processes.
    4. Standardization: Many industries have adopted standard sizes and dimensions for rectangular prisms, leading to compatibility and ease of interchangeability in various applications.
    5. Visibility and Accessibility: The flat faces of rectangular prisms make it easy to see and access the contents, whether in storage containers, cabinets, or display cases.
    6. Transportation Efficiency: Rectangular prism-shaped objects and packages can be easily loaded onto trucks, ships, and pallets, streamlining the transportation and logistics processes.
    7. Versatility: Rectangular prisms can be used in a wide range of applications, from building construction to packaging materials, making them versatile and adaptable.
    8. Ease of Assembly: In construction and manufacturing, rectangular prisms are used because they can be assembled and aligned easily.


    1. “Volume and Surface Area of Prisms” by Larson et al. (Precalculus with Calculus Insights)
    2. “Packing Problems and Rectangular Prisms” by Martin Gardner (Mathematical Games)

    Last Updated : 27 February, 2024

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    I’ve put so much effort writing this blog post to provide value to you. It’ll be very helpful for me, if you consider sharing it on social media or with your friends/family. SHARING IS ♥️

    11 thoughts on “Rectangular Prism Calculator (Cuboid)”

    1. The use of rectangular prisms in packaging and shipping is indeed efficient, but the environmental impact should also be considered in today’s context.

    2. The post on rectangular prisms is an excellent introductory guide for anyone interested in learning more about this geometric shape. The details about its practical uses and benefits are particularly informative.

    3. The extensive references at the end establish the credibility and reliability of the information presented in this article.

    4. This article does an exceptional job of breaking down the formulae related to rectangular prisms, making it easier to understand and apply in calculations.

    5. What a fascinating read! The details about transportation efficiency and ease of assembly provide valuable insights into the role of rectangular prisms in various fields.

    6. While the benefits of using rectangular prisms are evident, it would be intriguing to see a comparison with other geometrical shapes for a more comprehensive perspective.

    7. The practical applications highlighted in this article reinforce the idea that rectangular prisms are fundamental in various industries and everyday life.

    8. Definitely! I found the explanations about the volume, surface area, and diagonal length very helpful. It’s a comprehensive overview of the topic.

    9. The advantages mentioned in this article showcase why rectangular prisms are regarded as versatile and practical, especially in product design and logistics.

    10. I would appreciate this post more if it included specific real-world examples of these practical uses as illustrations.

    11. The ease of manufacturing and standardization of rectangular prisms are pivotal factors contributing to their widespread use across different sectors.

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