Measure floor area, convert units, and estimate material cost from total square footage.
Overview
The Square Footage Calculator helps you find total area for rooms, rectangular sections, and other simple zones that make up a project.
Use it to plan flooring, paint coverage, sod, or concrete by combining multiple sections into one accurate total.
Add a waste percentage for flooring and tile jobs so material orders include cuts, pattern matching, and installation margin.
Steps
Select feet, yards, or meters based on your measurements.
Add length and width for each section or room.
Include closets, hallways, or cut-out areas as separate entries.
Provide optional cost per square foot to estimate budget.
Use total area and cost output to compare quotes and material quantities.
Math
Rectangle area = length x width; Total area = sum of all section areas
Each section is converted to a common unit and calculated as length times width. The calculator adds all positive areas and subtracts excluded sections when needed.
Worked cases
A = 15 x 12
180 sq ft
Total = 180 + 64
244 sq ft
Cost = 244 x 3.50
$854.00
Why use this
Questions