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3D Surface Area Explorer

Unfold shapes and calculate surface area

Select Shape

Side Length (s)

Highlight individual faces Show dimensions Show unfolded net

Formula

SA = 6s²

Calculation

SA = 6 × (3)² = 6 × 9 = 54

Total Surface Area

square units

Face Breakdown

Top & Bottom

2 × 9 = 18

Front & Back

2 × 9 = 18

Left & Right

2 × 9 = 18

Understanding

A cube has 6 identical square faces. Each face has area s². Total = 6s².