Paint Coverage Calculator


Total Wall Area (sq feet):
Total Paint Needed (gallons):


Welcome to our Paint Coverage Calculator, a tool designed to take the guesswork out of your painting projects. Whether you’re a DIY enthusiast gearing up for a home makeover or a professional painter looking to streamline your work, accurately estimating the amount of paint you need is crucial. Our calculator simplifies this process, ensuring you buy just the right amount of paint, saving time and money.

How to Use the Paint Coverage Calculator

Getting an accurate paint estimate is easy with our calculator. Here’s what you need to do:

Measure Your Walls: Enter the height and width of the walls you plan to paint.
Number of Coats: Decide how many coats of paint you’ll apply for optimal coverage.
Paint Coverage Per Gallon: Check your paint’s label for its coverage capacity, typically around 350 sq feet per gallon, and enter this into the calculator.
Each field is designed to ensure you get the most accurate estimate of how much paint you’ll need for your project. Let’s break down the importance of each input.

Understanding Paint Coverage

Paint coverage refers to the area that a certain amount of paint can cover effectively. It’s essential to understand that coverage varies based on the type of paint and the surface you’re painting. For instance, rough or textured surfaces may require more paint than smooth surfaces. Additionally, certain types of paint, like those with higher pigment or thicker consistency, might cover less area. Our calculator takes these variables into account, allowing for a more accurate estimation of your paint needs.

Tips for Accurate Measurement

Measuring your space accurately is key to ensuring you get the right amount of paint. When measuring the wall area, always use a reliable tape measure and note the dimensions in feet. If there are windows, doors, or any areas that won’t require painting, subtract their area from the total wall area. This will give you a more precise figure to input into the calculator, ensuring you don’t overestimate the paint required.

Estimating Number of Paint Cans

Once you have the total paint needed in gallons from our calculator, the next step is to convert this into the number of paint cans you’ll need to purchase. Paint cans typically come in standard sizes (e.g., 1 gallon, 5 gallons). If your project requires 2.5 gallons, for instance, you might buy two 1-gallon cans and one half-gallon can, if available. Always consider buying a little extra paint for touch-ups.

Additional Painting Tips

Preparation is just as important as the painting itself. Before you begin, ensure your walls are clean, dry, and smooth. Repair any holes or cracks to get a uniform finish. Choosing the right type of paint is also crucial – different spaces like kitchens, bathrooms, or living areas may require different types of paints based on factors like moisture, sunlight exposure, and general wear and tear.


Our FAQs section is here to help answer your common queries about painting, such as choosing the right paint finish, dealing with textured walls, or how to paint over dark colors. We provide expert answers to make your painting project a success.


Our Paint Coverage Calculator is more than just a tool; it’s your partner in ensuring your painting project is successful and efficient. Say goodbye to the hassle of leftover paint or multiple trips to the store. We invite you to use this calculator for all your painting needs and explore our other resources for more tips and tricks in the world of DIY and professional painting.