Free Online Square Footage Calculator
Area Sketcher is a powerful and intuitive online square footage calculator designed for everyone from home owners to trade pros. Whether you need to measure a room, an entire floor plan, or an outdoor space, our free area sketching app provides the tools you need.
Drop your plan here
JPG, PNG, PDF & saved projects.
Files are processed locally in your browser.
or browse your files
5 Simple Steps to Measure Any Area
Upload
Drop your plan JPG, PNG, or PDF
Prepare
Crop & scale using known dimension
Draw
Outline areas using polygon or rectangle
Measure
Get instant square footage results
Save
Download project to continue later
Feature-Packed All-In-One App
100% Free
No registration, no credit card, no hidden fees
Multiple Drawing Tools
Polygon tool for complex shapes, rectangle tool for simple areas
Unit Conversion
Switch between square feet and square meters instantly
Project Management
Save, download, and reload your measurements
Category Organization
Group measurements by room type or project phase
Privacy Focused
Everything happens in your browser - nothing stored on servers
Take On Any Project
Real Estate & Property
- Room sizes for listings
- Square footage verification
- Commercial lease spaces
- Floor plan measurements
Home Improvement
- Flooring calculations
- Paint coverage estimation
- Kitchen & bathroom planning
- Furniture layout design
Landscaping & Outdoor
- Lawn & garden areas
- Deck & patio sizing
- Driveway cost estimation
- Sod & mulch coverage
Disclaimers
No cookies, user data or floor plans are stored on our servers. The word "upload" is only used colloquially, and not to imply that files are sent and stored on our servers.
Measurements are estimates based on user input and may vary from actual dimensions.
This tool is not a substitute for professional surveys or architectural measurements.
Do not rely solely on these measurements for legal, financial, or construction decisions.