Square Foot to Square Inch Converter 2026 - sq ft to sq in Calculator | Thiyagi

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