Calculate area of rooms and spaces in ft², m² and other units with ease.
A square footage calculator works out the total area of a room, yard, or any rectangular (or multi-section) space, based on length and width measurements. It's the go-to check before buying flooring, paint, turf, or anything sold by the square foot, since getting the area wrong usually means buying too little or wasting money on too much.
Eyeballing square footage or doing the multiplication mentally for an oddly shaped room leads to mistakes, especially when a space has multiple sections. This tool exists to give an exact number quickly, whether it's one simple rectangle or several combined areas.
For a simple rectangular space, square footage is just Length × Width. For irregular rooms, the calculator breaks the space into rectangular sections, calculates each one separately, and adds them together for the total. A 12ft × 15ft room, for example, comes out to 180 square feet — a number worth double-checking before ordering flooring, since materials are usually priced and sold by that exact unit.
Multiply the length of the space by its width, both measured in feet, to get the total square footage.
Break the space into smaller rectangular sections, calculate each one's square footage separately, and add them together for the total.
Most contractors recommend adding 5-10% extra to your calculated square footage to account for cuts, waste, and future repairs.
Yes, the same length × width calculation applies to yards, patios, and any other rectangular or multi-section outdoor area.
Yes, divide square footage by roughly 10.76 to get the equivalent area in square meters, or use the metric input option if available.