Square Footage Calculator
Instantly calculate the area of any room or space in square feet or square meters. Perfect for flooring, painting, landscaping, and real estate.
Calculate Your Room Area
Enter your room dimensions and shape to instantly see the total area in both square feet and square meters.
Area Estimator
Get a precise measurement of your space for any project.
How it Works
Understanding your space measurements
Select Shape
Choose the geometric shape that best matches your room or space (Rectangle, Triangle, or Circle).
Enter Dimensions
Input your length and width (or radius) and select your preferred starting unit of measurement.
Instant Conversion
We automatically convert your measurements to calculate the exact area in both square feet and square meters.
Pro Planning
Use the final result to estimate material needs, remembering to add a standard 10% waste buffer.
Typical Room Sizes & Areas
A general overview of common room dimensions and their approximate square footage to help you plan your project.
| Room Type | Typical Dimensions (ft) | Approx. Square Footage |
|---|---|---|
| Small Bedroom | 10′ x 10′ | 100 sq ft |
| Standard Bedroom | 12′ x 12′ | 144 sq ft |
| Master Bedroom | 14′ x 16′ | 224 sq ft |
| Standard Bathroom | 8′ x 5′ | 40 sq ft |
| Living Room | 16′ x 20′ | 320 sq ft |
| Two-Car Garage | 20′ x 20′ | 400 sq ft |
Square Footage FAQ
Answers to the most frequently asked questions about measuring space, calculating area, and planning home improvement projects.
For a rectangular room, multiply the length by the width (both measured in feet). For example, a 10ft x 12ft room is 120 square feet. For irregular shapes, divide the space into smaller rectangles, calculate the area of each, and add them together.
Square feet (sq ft) is an imperial unit of area commonly used in the US and UK real estate, while square meters (sq m) is the metric equivalent. One square meter is approximately equal to 10.764 square feet.
Yes, if you are calculating total living space for real estate purposes, closets, hallways, and staircases are typically included. However, if you are only buying flooring or paint for a specific room, measure only that specific area.
It is standard practice to add a 10% to 15% waste buffer to your total square footage when purchasing materials like hardwood flooring, tile, or carpet to account for cuts, mistakes, and future repairs.