How to Calculate Square Footage of Your House: A Simple Guide to Measuring Your Home's SizeSarah ThompsonSep 17, 2025Table of ContentsStep-by-Step Guide to Measuring Square FootageCommon Mistakes to AvoidFAQTable of ContentsStep-by-Step Guide to Measuring Square FootageCommon Mistakes to AvoidFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeCalculating the square footage of your house is a vital step if you're planning a renovation, selling your home, or just trying to understand your space better. To get started, you’ll need a tape measure, a notepad, and some simple math skills. Measure each room's length and width in feet, then multiply these numbers to find the square footage of each room. Finally, add up the square footage of all the rooms to get the total square footage of your home.Step-by-Step Guide to Measuring Square Footage1. Begin at one corner of the room and extend your tape measure to the opposite corner to find the length. Write this number down.2. Next, measure the width of the room in the same way.3. Multiply the length by the width to find the square footage. For example, if a room is 10 feet long and 12 feet wide, the calculation would be 10 x 12 = 120 square feet.Common Mistakes to AvoidWhen calculating square footage, it's easy to overlook areas such as closets, hallways, and other nooks. Make sure to measure every space. Also, remember that if your house has multiple stories, you'll need to measure each floor separately and sum them up for the total square footage.FAQWhat if my room has an irregular shape?You can divide the room into smaller rectangles or squares, measure each one, and then add the square footage together for the total.welcome to CoohomHome Design for FreePlease check with customer service before testing new feature.