Area of a regular hexagon calculator
Enter the dimensions of a regular hexagon and read off its area, its perimeter and the quantities that follow from them.
Area
41.569 219m²
- Perimeter
- 24
- Across the flats
- 6.928 203 2
- Across the corners
- 8
Show the working
- Side = 4
- Area = 3 * sqrt(3) / 2 * 4^2 = 41.5692
- Perimeter = 6 * 4 = 24
- Across the flats = 4 * sqrt(3) = 6.9282
- Across the corners = 2 * 4 = 8
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- area = (3 sqrt 3 / 2) s^2
- across flats = s sqrt 3
- across corners = 2s
Hex bar stock is specified across the flats, which is the shorter of the two widths.
Lengths are entered in metres by default; switch any field to feet, inches or millimetres and the conversion is exact.