How much area can 1 liter of paint cover?

## How Much Area Can 1 Liter of Paint Cover?

One liter of paint covers an average of 7 m2 (square meters) of interior walls. An average of 1.5 liters of paint is needed for a 10 square meter wall. 1 liter of paint paints an average of 5 square meters of exterior walls.

## How Much Wall Does a Gallon of Paint Cover?

One gallon of paint paints an average of 26.5 m2 (square meters) of interior walls. 1 gallon of paint covers an average of 18.9 square meters of exterior walls.

## How Much Wall Does 15 Liters of Paint Cover?

15 liters of paint paints an average room of 80 square meters.

## How to Calculate the Area to be Painted?

Before starting the painting, you need to find out the area to be painted in square meters in order to calculate the cost and the amount of paint required. Below you can find the formula to calculate this in a healthy and easy way.

First, the sum of the width of the room, i.e. the short side, and the length of the room, i.e. the long side, is multiplied by 2 and the perimeter of the room is found.

**(ROOM WIDTH + ROOM LENGTH) x 2 = ROOM PERIMETER**

The gross wall area is found by multiplying the perimeter of the room by the height of the room, that is, the part from floor to ceiling.

**ROOM PERIMETER x ROOM HEIGHT = GROSS WALL AREA**

We will find the net wall area by subtracting the door and window areas from the gross wall area. To do this, the sum of the product of the width and length of the doors opening into the room and the product of the width and length of the windows are subtracted from the gross wall area we obtained previously.

**DOOR WIDTH x DOOR LENGTH = DOOR AREA**

**WINDOW WIDTH x WINDOW LENGTH = WINDOW AREA**

**DOOR AREA + WINDOW AREA = AREA TO NOT BE PAINTED**

**GROSS WALL AREA – AREA TO NOT BE PAINTED = NET WALL AREA**

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