# Surface Area of a Cuboid Calculator

'Cuemath's Surface Area of a Cuboid Calculator' is an online tool that helps to calculate the surface area of a cuboid.

## What is The Surface Area of a Cuboid Calculator?

Cuemath's online Surface Area of a Cuboid calculator helps you to calculate the surface area of a cuboid within a few seconds.

NOTE: Please enter upto three digits only.

## How to Use Surface Area of a Cuboid Calculator?

Please follow the below steps to find the surface area of a cuboid:

**Step1:**Enter the length, width, and height of the cuboid in the given input box.**Step 2:**Click on the**"Calculate"**button to find the surface area of a cuboid.**Step 3:**Click on the**"Reset"**button to clear the fields and find the surface area of a cuboid for different values.

## How to Find Surface Area of a Cuboid?

A cuboid is defined as a three-dimensional analogue of a rectangle in two dimensions. The surface** **area of a cuboid is defined as the number of unit squares that can be fit into it and it is measured in square units. The surface area of a cuboid is calculated by the formula:

**The surface area of cuboid = 2(lb + bh + lh)**, where 'l' is the base length of the cuboid, 'b' is the base width of the cuboid, and 'h' is the height of the cuboid.

**Solved Example:**

Find the surface area of a cuboid whose base length is 7 units, base width is 6 units, and height is 8 units?

**Solution:**

Given: l = 7 units, b = 6 units, and h = 8 units

The surface area of cuboid = 2(lb + bh + lh)

= 2((7 × 6) + (6 × 8) + (7 × 8))

= 2( 42 + 48 + 56)

= 2 × 146

= 292 square units.

Therefore, the surface area of a cuboid is 292 square units.

Similarly, you can try the calculator to find the surface area of a cuboid for

1) Base length = 8 units, base width = 6 units, and height = 10 units

2) Base length = 9 units, base width = 5 units, and height = 12 units