Square Feet Calculator
Calculate square footage for rooms, flooring, painting, and construction projects. Get accurate area measurements and material cost estimates.
Calculation Method
Room Dimensions
Additional Calculations
Total Area
0
sq ft
Meters: 0 sq m
Yards: 0 sq yd
Square Footage Guide
How to Measure
- • Measure length and width in the same units
- • For irregular shapes, break into rectangles
- • Include closets and built-in furniture
- • Exclude walls, pillars, and permanent fixtures
- • Round measurements to nearest inch or centimeter
Common Applications
- • Flooring: Calculate materials needed
- • Painting: Estimate paint coverage
- • Real Estate: Property valuation
- • Renovation: Project planning and costs
- • Roofing: Shingle and material estimates
Unit Conversions
- • 1 square foot = 144 square inches
- • 1 square yard = 9 square feet
- • 1 square meter = 10.764 square feet
- • 1 acre = 43,560 square feet
Pro Tips
- • Add 10-15% waste allowance for materials
- • Measure twice, calculate once
- • Consider doorways and transitions
- • Account for patterns in flooring/tile