How much dessert per person?

A plated dessert is one portion per guest, typically 100-150g (we default to 120g). A dessert buffet or table is planned by the piece: guests sample about 3 mini desserts each (around 70g a piece). Individual pots or cupcakes work out at roughly 2 per head. About 85% of guests eat dessert - the rest are too full or prefer cheese - so the calculator multiplies pieces by your attending guests, not the full headcount.

How many dessert varieties for a buffet?

3-4 varieties is ideal for a dessert buffet. As a rule of thumb, offer at least as many varieties as the pieces each guest takes (so 3+ for a buffet) so the table never looks bare. Include one chocolate option, one fruit-based, and one classic (trifle, cheesecake). Too many varieties leads to small amounts of each that look sparse - quality over quantity.

What are the most popular party desserts?

UK favourites: chocolate brownies, Eton mess, cheesecake, trifle, Victoria sponge, lemon drizzle, profiteroles, and fruit crumble with custard. Mini versions of classic desserts work well for buffets.

Can I prepare desserts in advance?

Most desserts can be made 1-2 days ahead: brownies, cheesecake, trifle, panna cotta, and tarts. Some improve with time. Avoid making meringue-based desserts too far ahead as they go soggy. Assemble cream-topped desserts on the day.

Dessert Calculator — Portions & Quantities

Work out dessert portions and quantities for your event.

Number of Guests

Total number of people attending

Dessert StylePlated = 1 portion each; buffet/table = ~3 mini pieces each; individual pots/cupcakes = ~2 each. Sets the pieces per guest and pre-fills a typical piece size.

Portion Size

Per piece: plated dessert ~120g; mini buffet piece ~70g; individual pot/cupcake ~90g. Adjust to your recipe.

Number of Varieties

Different desserts on offer. Aim for at least as many as the pieces per guest (3+ for a buffet) so the table looks full.

Cost per Portion

Your cost per piece in £ (ingredients or bought-in price). Multiplied by the total pieces.

How We Calculate This

This calculator first works out how many guests eat dessert (about 85% by default), then multiplies by the pieces each guest takes for your chosen service style: 1 plated portion, ~3 mini pieces at a dessert buffet, or ~2 individual pots or cupcakes.

Formula

Guests eating dessert = guests × 85%
Pieces per guest = plated 1, buffet 3, individual 2
Total pieces = guests eating dessert × pieces per guest
Total weight = total pieces × piece size
Per variety = total pieces ÷ number of varieties

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Adjust quantities based on your guests and event type.