Square Footage Calculator

Calculate square footage for rooms, homes, and properties. Measure rectangular, circular, and irregular shapes accurately.

How to Calculate Square Footage

  1. 1 Select the shape of your space (rectangle, circle, triangle, etc.)
  2. 2 Enter the dimensions in your preferred unit
  3. 3 Add multiple rooms if calculating total area for a property
  4. 4 View results in square feet, square meters, and acres
  5. 5 See the breakdown by room for multi-room calculations

🔒 Instant results, faster than AI. No signup. 100% private.

Last updated: January 15, 2026 · v2.1