Geometry & Shapes2 options compared

Hexagon Calculator

Calculates all geometrical properties of a regular hexagon, including side length, perimeter, area, interior angles, and more, using simple input of one known dimension. Students, teachers, architects, and anyone interested in geometry can use this tool to quickly determine key measurements of a hexagon, aiding in educational exercises or practical design projects.

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Editors’ Top PickBased on community votes
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Side by side

Hexagon Calculator options compared

ToolBest forStrengthsLimitations
Omni Calculator
omnicalculator.com
Users needing full geometric details
  • Calculates circumradius and inradius
  • Provides short and long diagonal lengths
  • Page contains many similar tools which may distract
Pi Day Calculators
piday.org
Quick side length, perimeter, area, apothem
  • Clean list of units for input and output
  • Includes incircle radius as well as circumcircle radius
  • Fewer derived metrics than Omni Calculator

Buyer's guide

How to choose a hexagon calculator

If you need every internal measurement -- angles, both diagonals, circumradius, and inradius -- start with Omni Calculator. If your task only requires side length, perimeter, area, and apothem and you want a streamlined list of unit options, Pi Day Calculators is sufficient. The presence of extra metrics on Omni Calculator's page makes it more versatile for design or education, while Pi Day Calculators keeps the focus narrow.

Questions

Hexagon Calculator FAQ

Can I calculate a hexagon's area if I only know the perimeter?
Yes. Divide the perimeter by 6 to get the side length, then use the area formula with that side length. Both Omni Calculator and Pi Day Calculators will perform these steps automatically if you input the perimeter.
What is the difference between the long diagonal and short diagonal of a regular hexagon?
The long diagonal spans from one vertex to the opposite vertex and equals twice the side length. The short diagonal spans from one vertex to a non-adjacent vertex but not the opposite one and equals the side length times the square root of 3.
Do these calculators work for irregular hexagons?
No. Both tools are designed for regular hexagons only, where all sides and angles are equal. Irregular hexagons require different methods or manual calculation.
Which tool gives me the apothem if I only know the side length?
Both Omni Calculator and Pi Day Calculators will compute the apothem from the side length using the formula apothem = side × √3 ÷ 2. Enter the side length and the apothem appears among the results.
Can I switch between metric and imperial units on these calculators?
Yes. Omni Calculator and Pi Day Calculators both offer dropdown menus to select units for input and output, including millimeters, centimeters, meters, inches, feet, and miles.
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