Fondant Recipe Scaler
Calculate how much fondant you need to cover a tiered cake. Enter diameter, height, and number of tiers to get exact fondant weight in ounces and grams.
Inputs
Results
Total Fondant
21.57 oz
≈ 5 sticks of butter
Total Fondant
1.35 lbs
≈ 5 sticks of butter
How to Use This Calculator
- Enter the base tier diameter in inches and tier height.
- Set the number of tiers and fondant thickness in mm (standard: 3–4 mm).
- The calculator returns total fondant in oz, lbs, and grams, total surface area, roll-out diameter for the base tier, and estimated cost.
- Color, knead, and roll fondant to the displayed thickness, then drape over each tier starting from the largest.
How the result changes with Base Tier Diameter
| Base Tier Diameter | Total Fondant | Total Fondant |
|---|---|---|
| 6 | 10.95 oz | 0.68 lbs |
| 11 | 24.64 oz | 1.54 lbs |
| 17 | 46.54 oz | 2.91 lbs |
| 22 | 69.35 oz | 4.33 lbs |
What each input means
- Base Tier Diameter
- Diameter of the bottom (largest) tier in inches. Each additional tier above is assumed to be 2 inches smaller.
- Tier Height
- Height of each tier in inches. Standard cake layers are 4 inches; tall tiers may be 5-6 inches.
- Number of Tiers
- Number of cake tiers. Each tier is covered separately. Tiers decrease by 2 inches in diameter going up.
- Fondant Thickness
- Desired fondant thickness in millimeters. Standard is 3mm. Thinner (2mm) for delicate work, thicker (4-5mm) for easier handling.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersBase Tier Diameter = 10, Tier Height = 4, Number of Tiers = 1, Fondant Thickness = 3 = 4 input(s) provided
- Calculate Total FondantTotal Fondant21.57 = 21.57
- Calculate Total FondantTotal Fondant1.35 = 1.35
- Calculate Total FondantTotal Fondant611 = 611
- Calculate Surface AreaSurface Area225 = 225
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