Wedding Cake Size Calculator
Calculate wedding cake tiers and dimensions based on guest count and serving size.
Supports inches and centimeters.
Cake Size Recommendation
Wedding cake sizing depends on guest count and desired serving size. Professional bakers use standard tier sizes and serving counts.
Total Servings Needed = Number of Guests × Buffer (1.0–1.1)
Unit conversions:
- 1 inch = 2.54 cm
- 1 cm = 0.3937 inches
Servings per tier (round cakes, standard slice):
| Diameter | Wedding (1"×2") | Party (2"×2") |
|---|---|---|
| 6" (15cm) | 12 | 8 |
| 8" (20cm) | 24 | 14 |
| 10" (25cm) | 38 | 22 |
| 12" (30cm) | 56 | 34 |
| 14" (36cm) | 78 | 48 |
| 16" (41cm) | 100 | 62 |
Serving sizes:
- Wedding serving (1"×2"×4"): Standard thin slice — elegant, traditional
- Party/dessert serving (2"×2"×4"): Generous portion — casual events
Standard tier combinations:
- 50 guests: 6" + 10" (2 tiers)
- 100 guests: 6" + 8" + 12" (3 tiers)
- 150 guests: 6" + 8" + 10" + 14" (4 tiers)
- 200 guests: 6" + 8" + 10" + 12" + 16" (5 tiers)
Tip: Many couples order a display cake for cutting plus sheet cakes in the kitchen for serving, which saves cost.