Hexagon Calculator
Compute area, perimeter, apothem and interior angle of a regular hexagon.
About Hexagon Calculator
A regular hexagon has 6 equal sides. Each interior angle is 120°. The area formula is ½ × perimeter × apothem, or equivalently (3√3/2)s².
Formulas
Area
A = (3√3/2) × s²
- s
- Side length
Apothem
a = s × √3/2
- s
- Side length
Worked example
With the default values below, Hexagon Calculator returns Area of 93.5307. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Side Lengthminimum 0 units
- 6 units
Results
- Area
- 93.5307 sq units
- Perimeter
- 36.0000 units
- Apothem
- 5.1962 units
- Interior Angle
- 120.00 °
Step by step
- 1Interior angle= 120°
- 2Apothem= 5.1962
- 3Area= 93.5307
Assumptions and limits
- The result is derived only from the single input listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
Why are hexagons common in nature?
Hexagons tile a plane with no gaps and minimize perimeter for a given area (honeycombs, basalt columns).
What is the relationship between apothem and side for a hexagon?
The apothem equals (s√3)/2, and the circumradius equals the side length.