Calculators
Hexagon Calculator
Calculate regular hexagon area, perimeter, apothem, and diagonals from a side length locally in your browser.
Enter a side length from 0 (exclusive) to 1000000000 to see the area ((3√3/2) × s²), perimeter (6 × s), apothem ((√3/2) × s), long diagonal (2 × s), and short diagonal (√3 × s). The calculation runs locally in your browser; your value is not uploaded or stored.
Find regular hexagon measurements without uploading anything.
Enter a side length from 0 (exclusive) to 1000000000 to see the area, perimeter, apothem, long diagonal, and short diagonal. Everything runs locally in your browser, so your value is not uploaded or stored.
Frequently Asked Questions
Everything you need to know about this tool, how it works, and privacy.
What does the hexagon calculator show?
Enter a side length from 0 (exclusive) to 1000000000. The calculator returns the area ((3 times the square root of 3 divided by 2) times side squared), the perimeter (6 times the side), the apothem ((square root of 3 divided by 2) times the side), the long diagonal (2 times the side), and the short diagonal (square root of 3 times the side). For example, a side of 5 gives area about 64.9519052838, perimeter 30, apothem about 4.33012701892, long diagonal 10, and short diagonal about 8.66025403784.
Which formulas does the hexagon calculator use?
It uses area = (3 x square root of 3 / 2) x s^2, perimeter = 6 x s, apothem = (square root of 3 / 2) x s, long diagonal = 2 x s (vertex to opposite vertex), and short diagonal = square root of 3 x s (flat to opposite flat), where s is the side length you enter. This tool covers regular hexagons with six equal sides and equal interior angles.
Which inputs are accepted?
Enter a side length greater than zero through 1000000000. Decimal values are accepted. Zero, negative numbers, non-numeric text, and values above the limit show a clear error instead of a result.
Do my numbers stay private?
Yes. The calculation and copy action run locally in your browser. CodeASystem does not upload or store the value you enter.