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Volume of a Cuboid Explained with Formula and Examples

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What Is the Formula for Volume of a Cuboid and How to Calculate It

The concept of volume of cuboid plays a key role in mathematics and is widely applicable to both real-life situations and exam scenarios. Whether you are measuring the capacity of a box, aquarium, or storage tank, understanding how to calculate the volume of a cuboid helps you solve practical problems confidently.


What Is Volume of Cuboid?

A cuboid is a three-dimensional solid shape with six rectangular faces, twelve edges, and eight vertices. In everyday life, objects like bricks, shoeboxes, and water tanks often have the shape of a cuboid. The volume of cuboid is the total space enclosed inside its boundaries. You’ll find this concept applied in areas such as solid geometry, measurement-based word problems, and practical science experiments.


Key Formula for Volume of Cuboid

Here’s the standard formula: \( \text{Volume of Cuboid} = \text{Length} \times \text{Breadth} \times \text{Height} \)
or simply, \( V = l \times b \times h \)

The answer is always in cubic units like cm³, m³, or sometimes liters, depending on the units used for length, breadth, and height.


Cross-Disciplinary Usage

Volume of cuboid is not only useful in Maths but also plays an important role in Physics, Computer Science, and daily logical reasoning. Students preparing for JEE, NEET, or board exams often encounter questions that use this formula to find capacities or compare geometric solids.


Step-by-Step Illustration

  1. Suppose you have a box with length = 10 cm, breadth = 8 cm, and height = 5 cm.
  2. First, confirm all units are the same (all are in cm).
  3. Multiply the three dimensions: 10 × 8 = 80; then 80 × 5 = 400
  4. So, the volume of cuboid = 400 cm³
  5. Final Answer: The cuboid can hold 400 cubic centimeters of space.

Volume Conversion & Units Table

It’s essential to use the correct units and sometimes convert from cubic centimeters to liters or cubic meters. See the quick conversion table below:

From To Multiply By
Cubic cm (cm³) Liters (L) 0.001
Cubic m (m³) Liters (L) 1000
Liters (L) Cubic cm (cm³) 1000

To practice or convert further, try the gallons to liters converter or cubic foot to cubic meter calculator.


Try These Yourself

  • If a cuboid has dimensions 12 m, 7 m, 2 m, find its volume in cubic meters.
  • A swimming pool measures 20 m × 8 m × 2 m. What is the volume in liters?
  • The length of a cuboid is 150 cm, breadth is 50 cm, and height is 40 cm. What is its volume in liters?
  • A carton box can hold 24,000 cm³. If it is filled with juice, how many liters is this?

Frequent Errors and Misunderstandings

  • Mixing up the units: cm, m, or inches – always convert to the same unit before multiplying.
  • Forgetting to write the answer in cubic units (cm³, m³, etc.).
  • Assuming surface area is the same as volume. Remember, surface area and volume have different formulas.

Relation to Other Concepts

The idea of volume of cuboid connects closely with surface area of cuboid, rectangular prism, and volume of cube. Mastering this helps when moving on to topics like finding volume for cylinders or comparing solid shapes.


Classroom Tip

A simple way to remember the formula is “LBH” (Length × Breadth × Height). Visualize packing small cubes inside a box—count them to get total space. Vedantu’s teachers use unit cubes and real-life objects in live classes to help students relate the concept easily.


Wrapping It All Up

We explored volume of cuboid—from definition and formula to stepwise examples, common mistakes, comparisons, and extra practice. Keep practicing with Vedantu and use their live doubt-solving to strengthen your understanding and ace related exam questions!


Explore Related Calculators & Pages


FAQs on Volume of a Cuboid Explained with Formula and Examples

1. What is the volume of a cuboid?

The volume of a cuboid is the amount of space it occupies in three dimensions and is measured in cubic units. A cuboid is a 3D rectangular box with length, breadth, and height. The volume tells us how much space is inside the cuboid and is expressed in units like cm³, m³, or in³.

2. What is the formula for the volume of a cuboid?

The formula for the volume of a cuboid is V = l × b × h.

  • l = length
  • b = breadth (width)
  • h = height
Multiply these three dimensions to calculate the volume in cubic units.

3. How do you calculate the volume of a cuboid step by step?

To calculate the volume of a cuboid, multiply its length, breadth, and height using V = l × b × h.

  • Step 1: Measure the length.
  • Step 2: Measure the breadth (width).
  • Step 3: Measure the height.
  • Step 4: Multiply all three values.
The result is the volume in cubic units.

4. Can you give an example of finding the volume of a cuboid?

Yes, to find the volume of a cuboid with length 5 cm, breadth 3 cm, and height 4 cm, use V = l × b × h.

  • V = 5 × 3 × 4
  • V = 60
The volume = 60 cm³.

5. What units are used to measure the volume of a cuboid?

The volume of a cuboid is measured in cubic units. Common units include:

  • cm³ (cubic centimeters)
  • m³ (cubic meters)
  • mm³ (cubic millimeters)
  • in³ (cubic inches)
The unit depends on the measurement units of length, breadth, and height.

6. What is the difference between the volume and surface area of a cuboid?

The volume of a cuboid measures the space inside it, while the surface area measures the total area of its outer faces.

  • Volume formula: V = l × b × h
  • Total surface area formula: 2(lb + bh + hl)
Volume is measured in cubic units, while surface area is measured in square units.

7. Why is the volume of a cuboid measured in cubic units?

The volume of a cuboid is measured in cubic units because it represents three-dimensional space. Since volume involves length, breadth, and height, the units multiply as unit × unit × unit, resulting in cubic units such as cm³ or m³.

8. What happens to the volume of a cuboid if one dimension is doubled?

If one dimension of a cuboid is doubled, its volume also doubles. Since V = l × b × h, increasing one dimension by 2 multiplies the total product by 2. For example, if the original volume is 50 cm³, doubling one side makes the new volume 100 cm³.

9. How do you find the height of a cuboid if the volume is given?

To find the height of a cuboid, use the rearranged formula h = V ÷ (l × b).

  • Step 1: Multiply length and breadth.
  • Step 2: Divide the given volume by that product.
This gives the height in the same unit as the other dimensions.

10. What are some real-life examples of volume of a cuboid?

Real-life examples of the volume of a cuboid include calculating the capacity of boxes, rooms, and storage containers. Common examples are:

  • Finding the storage space in a rectangular box
  • Calculating the volume of a water tank
  • Measuring the space inside a room
In each case, use V = l × b × h to determine the space available.