Hexagonal Prism Calculator

Enter the base side length (a) and height (h) of a regular hexagonal prism to calculate its volume, total surface area, lateral surface area, and base area. The Hexagonal Prism Calculator uses standard geometric formulas — V = (3√3/2)·a²·h and SA = 6·a·h + 3√3·a² — giving you all key properties in one step.

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The length of one side of the regular hexagonal base.

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The perpendicular height (length) of the prism.

Results

Volume

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Total Surface Area

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Lateral Surface Area

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Base Area (one hexagon)

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Apothem of Base

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Base Perimeter

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Surface Area Breakdown

Frequently Asked Questions

What is a hexagonal prism?

A hexagonal prism is a three-dimensional solid with two parallel, congruent regular hexagons as its bases, connected by six rectangular lateral faces. It has 8 faces, 18 edges, and 12 vertices in total.

What is the formula for the volume of a hexagonal prism?

The volume is calculated as V = (3√3 / 2) × a² × h, where 'a' is the side length of the hexagonal base and 'h' is the height of the prism. This equals the base area multiplied by the height.

How do you calculate the surface area of a hexagonal prism?

The total surface area is SA = 6·a·h + 3√3·a², where the first term (6·a·h) represents the lateral surface area of the six rectangular faces, and the second term (3√3·a²) represents the combined area of the two hexagonal bases.

What is the apothem of a hexagonal prism?

The apothem is the perpendicular distance from the center of the hexagonal base to the midpoint of one of its sides. For a regular hexagon with side length a, the apothem equals (√3 / 2) × a. It is used in calculating the base area.

How many faces, edges, and vertices does a hexagonal prism have?

A hexagonal prism has 8 faces (2 hexagonal bases + 6 rectangular lateral faces), 18 edges (6 on each hexagonal base + 6 lateral edges), and 12 vertices (6 on each hexagonal base).

What is the difference between lateral surface area and total surface area?

The lateral surface area covers only the six rectangular side faces (LSA = 6·a·h), while the total surface area includes the lateral surface plus both hexagonal bases (TSA = 6·a·h + 3√3·a²).

Does the calculator assume a regular hexagonal prism?

Yes. This calculator is designed for a right prism with a regular hexagonal base, meaning all six sides of the hexagon are equal and all interior angles are 120°. Irregular hexagonal prisms require different formulas.

What units should I use for the inputs?

You can use any consistent unit (cm, m, inches, feet, etc.). The volume result will be in cubic units and the surface areas in square units of whatever unit you entered. Just make sure both inputs use the same unit.

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