Square Foot Calculator

Calculate square footage and convert to square meters, yards, inches, and acres. Supports rectangle, circle, and triangle.

Square Foot Calculator — the fastest way to calculate area right from your browser toolbar. 🔹 WHAT IT DOES Instantly calculate square footage for any space. Enter your dimensions, and get accurate results with real-time visual previews and automatic unit conversions. 🔹 SUPPORTED SHAPES • Rectangle — Enter length and width • Circle — Enter diameter • Triangle — Enter base and height 🔹 UNIT CONVERSIONS Every calculation automatically converts to: • Square Meters (m²) • Square Yards (yd²) • Square Inches (in²) • Acres 🔹 INPUT UNITS Measure in the unit you prefer: • Feet • Inches • Meters • Centimeters 🔹 KEY FEATURES ✔ Real-time visual shape preview that updates as you type ✔ One-click copy to clipboard ✔ Clean, modern interface — no clutter, no ads ✔ Works completely offline — no data sent anywhere ✔ Lightweight and fast 🔹 PERFECT FOR • Homeowners estimating flooring, tiling, or paint coverage • Real estate professionals calculating room sizes • Contractors and builders doing quick area estimates • Students working on geometry problems • Anyone who needs a fast square footage answer 🔹 PRIVACY This extension works 100% offline. No data is collected, stored, or transmitted. Your calculations stay on your device. Visit https://www.squarefootcalculators.com for our full-featured online calculator.