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THE FEUTEX TOOLKIT

Round Cake Fondant Drape Size

Find the minimum rolled fondant diameter and material volume needed to drape over a round cake.

Cooking workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaRolled sheet diameter = diameter+2*height+2*trim; Rolled sheet volume = Math.PI*((diameter+2*height+2*trim)/2)**2*thickness/10

Made for real tasks

  • Find the minimum rolled fondant diameter and material volume needed to drape over a round cake.
  • Compare an alternative set of measurements without uploading personal data.
Explore step-by-step workflows →

Worked example

Inputs

Cake diameter
20 cm
Cake height
10 cm
Extra trimming at each edge
3 cm
Rolled thickness
3 mm

Expected results

Rolled sheet diameter
46 cm
Rolled sheet volume
498.5707541 mL

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter cake diameter, cake height, extra trimming at each edge, and rolled thickness in the displayed units.
  2. Calculate and use each labeled result for round cake fondant drape size. Compare the result with a measured sample before committing materials.

Try this example

{
  "diameter": 20,
  "height": 10,
  "trim": 3,
  "thickness": 3
}

Accuracy and scope

Flat circular sheet estimate before draping; stretching, pleating and offcuts change actual consumption.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.