Interior Quick Calculation
Disclaimer: The results of this calculator are estimates and should be used as a general guideline only. The actual amount of product needed may vary based on factors such as the porosity of the surface, the type of paint used, and the number of coats applied. Please consult with a professional contractor for accurate product estimates and application techniques.
Our paint calculator is designed to help you determine the approximate amount of paint needed for your interior or exterior project. It is based on the dimensions of your walls and takes into account the number of doors and windows in the room. The calculator assumes that one gallon of paint covers approximately 400 square feet, and that doors and windows are of standard size (3'x7' doors and 3'x5' windows).
To use the calculator, simply enter the height and width of the room in feet, along with the number of doors and windows. Click "Calculate" to see the estimated amount of paint required for your project.
For specific product coverage rates, please refer to the Product Data Sheet (PDS) for the applicable product. To ensure optimal coverage, we recommend rounding up to the nearest gallon.