Drinks Calculator & Planning Guide

Hosting a celebration should be completely stress-free. Whether you are arranging an intimate dinner party or stocking a full wedding bar, use our straightforward guide below to estimate exactly how much wine you will need to keep your guests happy and your budget intact.


The Golden Rule: Serves Per Person

A standard 75cl bottle of wine or sparkling fizz yields 5 generous 150ml serves. While standard UK bar measures often hover around 125ml or 175ml, calculating at 5 pours per bottle provides a safe, comfortable buffer for your event. For sparkling wine poured into standard flutes, you can reliably calculate 6 perfect serves per bottle (125ml per pour).


The Half-Bottle Benchmark

A time-tested rule of thumb for any gathering is to assume each guest will consume approximately half a bottle of wine over the course of the event. To fine-tune your inventory, align your order with the duration of your party:

  • Short Reception (1–2 hours): Plan for 2 servings per guest.
  • Dinner Party (3–4 hours): Plan for 3 servings per guest.
  • Long Event or Wedding (5+ hours): Plan for 4–5 servings per guest.

The 100-Guest Party Blueprint

For large-scale catering and weddings spanning a standard 5-hour evening, use our master breakdown for every 100 guests to balance your bars perfectly:

Wine Style Recommended Quantity Serving Strategy
White Wine 45 Bottles The crowd-pleaser starter style
Red Wine 40 Bottles Essential for the dinner transition
Sparkling Fizz 20 Bottles Tailored for the reception and toast
Rosé Wine 10 Bottles Optional but vital for summer dates
Total Stock 115 Bottles 60% White/Fizz to 40% Red Ratio

Pro-Tip for the Toast:

When planning a wedding toast, be conservative. Most guests will only take a few sips of sparkling wine during the speeches. To add a brilliant visual element to the room while keeping the bars flowing, look to larger formats. A Magnum (1.5L) yields 12 perfect flutes, stays cold longer, and looks fantastic on a banquet table.


Ready to Stock Your Bar?

Now that you have your numbers, eliminate the guesswork of selecting individual bottles. We have compiled a dedicated range of versatile, crowd-pleasing bottles that offer exceptional value without sacrificing quality.

Explore the Party Wines Collection →