Square Foot to Square Inch Converter

Convert between square feet (sq ft) and square inches (sq in) for construction, flooring, carpeting, design projects, and area measurements

Imperial area unit (12×12 inches)
Small imperial area unit
Enter a value to see the conversion result

Area Reference

Square Feet ⇔ Square Inches
1 sq ft ⇔ 144 sq in
2 sq ft ⇔ 288 sq in
5 sq ft ⇔ 720 sq in
10 sq ft ⇔ 1,440 sq in
25 sq ft ⇔ 3,600 sq in
100 sq ft ⇔ 14,400 sq in

Construction Applications

Flooring & Tiles:
• Standard tile: 12×12 in (144 sq in, 1 sq ft)
• Large tile: 18×18 in (324 sq in, 2.25 sq ft)
• Small mosaic: 1×1 in (1 sq in)
• Plank flooring: 5×48 in (240 sq in)
Room Measurements:
• Small bathroom: 25-40 sq ft
• Walk-in closet: 25-100 sq ft
• Bedroom: 100-300 sq ft
• Living room: 200-400 sq ft
Material Planning:
• Carpet squares: 12×12 in (1 sq ft)
• Wallpaper rolls: coverage per sq ft
• Paint coverage: ~400 sq ft per gallon
• Adhesive coverage: varies by sq ft

Area Units

  • sq ft: 144 square inches
  • sq in: Base imperial area unit
  • Conversion: 1 sq ft = 144 sq in
  • Formula: 12 in × 12 in = 144 sq in

Usage Tips

  • sq ft for large areas
  • sq in for small items
  • Count waste/overlap
  • Check material specifications

Applications

  • Construction: Flooring projects
  • Design: Space planning
  • Retail: Material ordering
  • Real Estate: Property measurement