The surface area of a cube is the total sum of the area of the six sides that cover it, and it is calculated by using the formula A = 6a^2. Measure the area of one side of the cube. Multiply that number by 6 to arrive at the total surface area of the cube.

**Use the correct formula**The formula to calculate the surface area of a cube is A = 6a^2, where a equals one edge of the cube.

**Calculate the area of one side**Calculate the area of one side of the cube by calculating the square of the length of one side of the cube.

**Calculate the surface area**Multiply the area of the side of the cube by 6 to get the total surface area of the cube.