Hexagon area calculator

Calculate the area of a regular hexagon from its side length, with a formula, example and result in square units.

Result

Six triangles, one shape

Highlight one triangle and the apothem to the midpoint of its side. Drag the handle to resize all six triangles together.

How do you calculate regular hexagon area?

Connect the centre to all six vertices to form six equilateral triangles. The apothem is the height of each triangle.

A = \frac{3 \times \sqrt{3} \times s^{2}}{2}

How to use the calculator

Enter measurements with a decimal point or comma: results update immediately. Input units apply to every length; changing them converts the measurements. Changing result units leaves the shape unchanged. The control below the drawing reveals or hides its visual explanation. Copy results includes valid measurements and the result. Reset and Try this example restore the initial values and centimetre units.

The first formula shows the relationship; the second substitutes measurements converted to the result unit. The ≈ sign indicates rounding, including in the substituted values.

A hexagonal tile

A 2 cm side gives 12 cm of perimeter and about 10.39 cm² of area. Allow for gaps when laying tiles.

From measurements to the result

Input: $s = 2 cm$
Result: $≈ 10.39 {cm}^{2}$

Calculation steps

Add the six equal sides to obtain perimeter.
$P = 6 \times 2 = 12$
Complete the calculation using the tool’s formula.
$A = \frac{3 \times \sqrt{3} \times 2^{2}}{2} = 6 \times \sqrt{3}$

Units and interpretation

Area uses square units: 1 m² = 10,000 cm².

The hexagon must be regular. Side length ranges from 10⁻¹² to 10¹² in the selected unit.

Precision and numerical limits

Lengths range from 0 to 10¹² in the selected unit; triangle sides must be strictly positive. Results use two decimal places, with scientific notation for very small or large values. Calculations use browser precision: unrepresentable positive values produce an error. A rejected unit change keeps the previous data. Calculation takes place in your browser.

We count which tools are used most, without including entered values or file contents in the statistics. Privacy

Hexagon area calculator

Result

Six triangles, one shape

How do you calculate regular hexagon area?

How to use the calculator

A hexagonal tile

From measurements to the result

Calculation steps

Units and interpretation

You might also need

Regular polygon area calculator

Triangle perimeter calculator

Triangle area