Square Footage Calculator (Quick Room & Wall Area)
Square Footage Calculator
Quick area measurements for any project
📌 Pro Tip: Press Ctrl+D (or Cmd+D) to bookmark this area tool for your project.
Every home improvement project begins with one simple number: the area. Whether you are ordering expensive hardwood floors or just a few gallons of paint, you need to be precise. This square footage calculator removes the stress of manual math. In 2026, material costs are too high to waste. Using this tool helps you stay on budget by giving you accurate measurements for any square or rectangular space in seconds. It is the essential starting point for your DIY journey.
How do I calculate sq ft?
The most common question beginners ask is, “How do I calculate sq ft?” It is easier than you think. To find the area of a standard space, you simply multiply the length by the width. Our ft to sq. ft calculator handles this conversion instantly, even if you are working with complex dimensions or multiple rooms.
How to calculate square feet of a room or wall
If you are learning how to calculate square feet of a room, start by measuring the two longest walls. For a wall, measure from the floor to the ceiling (height) and then from corner to corner (width). Our square footage calculator is perfect for finding the square footage of a wall so you can estimate paint or wallpaper without over-buying. Once you have your wall area, use our Brick & Mortar Calculator to find your exact material counts.
Measuring for a full house
Precision with Feet and Inches
Many people struggle when a measurement isn’t a whole number. Using a square footage calculator with feet and inches ensures you don’t lose accuracy. Remember that 1 square foot in inches is actually 144 square inches. If you have a measurement of 10 feet and 6 inches, enter it as 10.5 feet into the tool to get the correct area.
