Square Footage Calculator

Calculate the area of any space in square feet, whether it's a room, yard, or land parcel. Our calculator supports rectangles, circles, triangles, and L-shaped areas with instant conversions to square meters and acres. This is the first step for most home improvement projects.

Measurement Tips

• Measure length and width at the longest points for rectangles
• For circles, measure across the widest point (diameter)
• For L-shapes, break the area into two rectangles
• Always measure in the same units (feet or meters)

Common Applications

Square footage calculations are essential for flooring, painting, landscaping, real estate, and construction projects. Accurate measurements help you estimate materials, costs, and labor requirements.

Unit Conversions

• 1 square foot = 0.0929 square meters
• 1 acre = 43,560 square feet
• 1 square yard = 9 square feet

Use Your Measurements

Once you have your square footage, use these calculators: paint calculator for walls, tile calculator for floors, mulch calculator for landscaping, concrete calculator for patios, drywall calculator for walls, and roofing calculator for your roof.