Square Inch to Square Foot Converter

Convert square inches to square feet instantly with our precise area converter. Perfect for small area calculations and detailed measurements.

144 sq in = 1 sq ft

About Square Inches

A square inch (sq in or in²) is a unit of area measurement equal to the area of a square with sides of one inch. It's commonly used for small area measurements and detailed calculations.

1 sq in = 6.452 cm²

About Square Feet

A square foot (sq ft or ft²) is a unit of area measurement equal to the area of a square with sides of one foot. It's widely used in construction, real estate, and interior design.

1 sq ft = 144 sq in

Common Square Inch to Square Foot Conversions

72 sq in
0.5 sq ft
144 sq in
1 sq ft
288 sq in
2 sq ft
1,440 sq in
10 sq ft

Visual Reference

Square Inch Examples

• Postage stamp: ~1 sq in
• Credit card: ~5.4 sq in
• Business card: ~6 sq in
• Smartphone screen: ~15-25 sq in

Square Foot Examples

• Floor tile: ~1 sq ft
• Small table: ~4-6 sq ft
• Desk surface: ~8-12 sq ft
• Small room: ~100-150 sq ft

Conversion Formula

Square Feet = Square Inches ÷ 144

Why 144? Because 1 foot = 12 inches, so 1 square foot = 12 × 12 = 144 square inches.

Common Applications

Manufacturing

Small part surface area calculations

Crafts & Design

Material planning and pattern making

Engineering

Detailed technical drawings and specifications

Related Area Converters

sq ft to sq in
sq ft to sq yd
sq in to sq cm
sq ft to m²
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