Cake Serving Size
Estimate slices from pan size and portion width.
Inputs
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Formula
servings ≈ area ÷ portion²
Round cakes use πr²; square uses side². Assumes uniform height and slice width defines portion area.
Worked example
A 20 cm round, 8 cm tall cake with 5 cm slices yields about a dozen wedding-style portions.
Where this can give the wrong answer
- Party vs wedding slice widths differ — adjust portion cm.
- Multi-tier cakes need per-tier calculation.
- Irregular shapes underestimate servings.
FAQ
- Wedding: ~2.5×5 cm; party: ~3.8×5 cm — set portion to match your style.