Math July 13, 2026 · 8 Min Read

Hexagon Area Calculator – Guide & Formulas

Calculate the area, perimeter, and width of a regular hexagon instantly using side length, diameter, or height.

Solve all dimensional parameters of a regular six-sided hexagon. Perfect for honeycomb cellular grids, bolts, tiles, and architecture.

Key Takeaway

Use the free Hexagon Area Calculator to calculate the area, perimeter, and width of a regular hexagon instantly using side length, diameter, or height. Get instant results with step-by-step explanations.

How to Use the Hexagon Area Calculator

  1. Input the side length of your regular hexagon.
  2. Analyze the resulting area, perimeter, flat-to-flat width, and point-to-point diameter.
  3. Review the mathematical breakdown of summing six equilateral triangles.

The Formula

Area = (3 * sqrt(3) / 2) * side^2

Variable Definitions

  • s: Side length of the regular hexagon
  • A: Total calculated surface area

Floor Tiling Estimate

An interior designer is using large hexagonal floor tiles with side lengths of 8 inches. Find the area of one tile.

  1. Step 1: Identify side s = 8 inches.
  2. Step 2: Square the side length: 8² = 64.
  3. Step 3: Multiply by the hexagon constant (≈ 2.59808): 2.59808 * 64 ≈ 166.28 square inches.
  4. Step 4: Each tile has a surface area of approximately 166.28 square inches.

Frequently Asked Questions

Why is a regular hexagon made of 6 equilateral triangles?

The central angle is 360° / 6 = 60°. Since the two radii to the vertices are equal, the remaining angles are also 60°, proving each triangular slice is equilateral.

What is the width of a hexagon flat-to-flat?

The flat-to-flat width is equal to 2 * apothem, which resolves to side * √3.

How does point-to-point diameter compare to side length?

For a regular hexagon, the maximum point-to-point distance is exactly twice the side length (d = 2s).