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Matematik

Frustum Lommeregner

Frustum Calculator (Truncated Cone)

Top Radius (r)
Bottom Radius (R)
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Variabelbeskrivelse

R= larger base radiusr= smaller top radiush= vertical heightl= slant height

Slant height

Distance along the slanted lateral surface.

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Volume

Difference between two cones.

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Lateral surface area

Curved outer face only.

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Total surface area

Lateral area plus both circular bases.

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Deep Dive

Read the full guide on how to use this calculator effectively

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Reviewed October 2026
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