Square Footage Calculator
Calculate area in square feet, meters, yards, and acres. Perfect for rooms, homes, construction, and real estate.
π Square Footage Calculator
Enter dimensions to calculate area in multiple units
π What is Square Footage?
π Definition
Square footage is the measurement of area in square feet (sq ft). It is calculated by multiplying length by width. A square footage calculator is essential for real estate, construction, home improvement, and interior design projects.
This area calculator provides results in square feet, square meters, square yards, and acres β making it perfect for international use.
π Why Calculate Square Footage?
- Real Estate: Compare home sizes and property values
- Construction: Estimate materials (flooring, paint, tiles)
- Renovation: Plan room layouts and furniture placement
- Gardening: Calculate lawn and garden areas
- Rental: Determine rentable space in commercial properties
π Square Footage Formula
Standard Area Formulas
Rectangle: Area = Length Γ Width
Circle: Area = Ο Γ RadiusΒ²
Triangle: Area = 0.5 Γ Base Γ Height
1 sq ft = 0.0929 sq m β’ 1 sq m = 10.764 sq ft β’ 1 acre = 43,560 sq ft
π Common Room Sizes & Square Footage
| Room Type | Dimensions | Square Feet | Square Meters |
|---|---|---|---|
| Small Bedroom | 10 Γ 10 ft | 100 sq ft | 9.29 sq m |
| Medium Bedroom | 12 Γ 12 ft | 144 sq ft | 13.38 sq m |
| Large Bedroom | 14 Γ 16 ft | 224 sq ft | 20.81 sq m |
| Living Room | 16 Γ 20 ft | 320 sq ft | 29.73 sq m |
| Small Kitchen | 10 Γ 12 ft | 120 sq ft | 11.15 sq m |
| Medium Kitchen | 12 Γ 15 ft | 180 sq ft | 16.72 sq m |
| Garage (1 Car) | 12 Γ 20 ft | 240 sq ft | 22.30 sq m |
| Garage (2 Car) | 20 Γ 20 ft | 400 sq ft | 37.16 sq m |
π How to Use This Square Footage Calculator
Step 1: Choose Shape
Select the shape of your area: Rectangle, Circle, or Triangle.
Step 2: Enter Dimensions
Input length and width (or radius, base, height) in feet.
Step 3: Calculate & Review
Click calculate to see the area in square feet, meters, yards, and acres.
π‘ Real Estate & Square Footage
Average Home Size
The average single-family home in the US is approximately 2,500-2,600 square feet as of 2026, though this varies significantly by region.
Price per Square Foot
The average price per square foot varies by location. Use our square footage calculator to estimate property values based on local market rates.
Appraisal Accuracy
Accurate square footage is essential for home appraisals, property taxes, and real estate listings. Use our room size calculator for precise measurements.
π More Construction & Measurement Tools: Use our Board Foot Calculator for lumber estimation, or try the Voltage Drop Calculator for electrical projects. Check our home page for all tools.
β Frequently Asked Questions
π More Home & Real Estate Tools: Explore our Snow Day Predictor for weather planning, or try the D&D 5e HP Calculator for gaming. Visit the home page for all tools.