Wedding Cake Calculator
Calculate cake weight for events.
How much wedding cake do I need?
Wedding cake portions usually range from 100 to 200 grams per guest. The exact amount depends on whether the cake is the main dessert or served alongside other sweets. The calculator multiplies the number of guests by your chosen portion weight and converts the total into kilograms — giving you a clear idea of the cake size to order or bake.
How to use the Wedding Cake Calculator
Enter the number of guests and the desired portion weight (grams per person). Click "Calculate" to instantly see the total cake weight in kilograms. Use the typical recommendation — 100–200g per guest — or adjust for your specific event needs.
Example calculation
For 50 guests and a 150g portion: 50 × 150 = 7,500g, which equals 7.5 kg of cake. This amount comfortably serves all guests, with possibly a few extra slices left over.
Frequently Asked Questions
What if I serve other desserts too?
If you have a full dessert table, you can reduce the portion to 80–120g per guest. The cake will still be a highlight, but you won't over-order.
Does this calculator work for other events?
Yes, it works for birthdays, anniversaries, corporate events and any celebration where cake is served. Just set the portion weight according to your menu.