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Volume of a hexagonal prism calculator

Enter the dimensions of a hexagonal prism and read off its volume and surface area. Volumes convert to litres and gallons with the unit selector.

Volume
83.138 439m³
≈ Rounded Volume of a hexagonal prism
Surface area
116.784 61
Cross-sectional area
10.392 305
Show the working
  1. Hexagon side = 2
  2. Length = 8
  3. Volume = 3 * sqrt(3) / 2 * 2^2 * 8 = 83.1384
  4. Surface area = 3*sqrt(3)*2^2 + 6*2*8 = 116.785
  5. Cross-sectional area = 3*sqrt(3)/2*2^2 = 10.3923

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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    The formula

    • volume = (3 sqrt 3 / 2) s^2 x length

    Switch the volume unit to litres or US gallons to read the capacity directly.

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