Paint Coverage Calculator

Calculate how much paint and primer you’ll need for an interior painting job by entering the room’s dimensions. Optionally, include ceiling paint in your estimate.

Enter the dimensions of the room you want to paint. Use the Area section below to calculate wall and ceiling values. Use the Number of Doors and Windows section to calculate door and window values.
Interior paint coverage varies depending on the brand of paint you use. The coverage amount is listed on the paint can label. Use this to adjust the values ​​in the Paint Coverage section below. Paint is typically applied at 300-400 square feet per gallon (primer at 200-300 square feet per gallon).

Paint amounts are based on 2 coats. If you are simply updating the walls with the same color, 1 coat will be sufficient. However, if you are repainting a new color, you may need more than 2 coats. Remember that textured walls and dark colors might require more paint. Consult a professional!