Square Footage Calculator
Use our free Square Footage Calculator to quickly estimate area in square feet, based on simple inputs like length and width. Perfect for homeowners, real estate agents, and contractors.
Square Footage Formula
Knowing how to calculate square footage is essential for home buying, remodeling, and construction projects. Not a fan of manual math? Use our free Square Footage Calculator for instant results.
How this square footage calculator works
This calculator estimates the total area of a room or surface by multiplying length and width. It's a quick, accurate way to measure space for flooring, paint, real estate listings, or remodeling projects.
When to use this square footage calculator
Measuring rooms for flooring or carpet installation
Estimating paint or wallpaper needs
Calculating usable space for remodeling projects
Comparing property sizes when buying or selling real estate
Planning layouts for furniture, appliances, or renovations
Want to make your home projects smarter?
Use ServiceAgent.ai to automate estimates, manage proposals, and track profitability—all from one dashboard.
Book a Free Demo
Average Profit Margins by Industry
Understand how home services compare across industries. Below are typical profit margin ranges across common service businesses:
Flooring Contractors
Painting Contractors
Roofing Contractors
HVAC Contractors
Plumbing Contractors
Electrical Contractors
Cleaning Services
Construction/Contracting
These benchmarks help homeowners and contractors evaluate whether project costs are competitive and profitable.
Frequently Asked Questions
It's very accurate for rectangular spaces. For irregular shapes, divide the space into rectangles and add the totals.
It calculates in feet and square feet. You can convert to square meters if needed.
Yes—just enter the length and width of the area.
Absolutely. Agents use square footage to compare property values.
Yes—calculate each room separately and add them together.
No—this tool only calculates floor area. For volume, multiply area by ceiling height.
Not directly. Use shape-specific formulas, or break the area into rectangles for approximation.
Pair it with ServiceAgent.ai to quickly create proposals, estimates, and project tracking.