How to calculate the amount of paint using Painting Cost Calculator?

When we are going to paint a room, we have to make several decisions such as the type of paint, the finish, the color, and etc. But we also have to know how much surface we are going to paint in order to calculate the quantity of the product we need.

For this, we are going to give you a very simple example of how to calculate the square meters of the surface to be painted. Subsequently, with this surface, and with the performance of the product to be used, we will calculate the amount of paint using Painting Cost Calculator.

In the case of the example, we are going to calculate the square meters of the roof first. We measure with a tape measure the width of the room by the length of the same and multiply both values. For the walls, we will add the sides of the room and this sum will be multiplied by the height of the walls.

We already know the surface to be painted. But how do we calculate the liters of paint we need?

To finish calculating the liters of paint, it will be necessary to know the performance of the paint we are going to use and the number of hands to apply.

The performance data is given to us by the manufacturer and appears on the packaging and in the product datasheet, which is available in the online store. This performance is for smooth surfaces.

If we want to change the color of a room it will be necessary to apply, at least, two coats of paint depending on the covering of each painting.

On the roof, we are only going to apply a coat of white paint and for the walls two-colored hands. To calculate the liters of paint we need, we multiply the surface to be painted by the number of hands and this result will be divided between the yield.

Remember that the performance of a painting depends on whether the wall is embossed or rough. And if the wall has not been painted before, it will be necessary to previously apply a coat of primer to prevent the wall from absorbing the paint.

Surface to paint

To calculate a surface using Painting Cost Calculator, you must multiply its width by the height. If a wall has windows or doors, the surface of each one of them must be calculated and then subtracted from the total surface of the wall.

This exercise must be repeated with each wall, in order to add the total surfaces and then determine how many meters we are going to paint.

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