Confirm your age
Please verify that you are 18 years of age or older to enter this site.
How to Calculate Drink Quantities for Corporate Events
on Nov 07 2026
Last Updated: November 6, 2026
Quick Summary
To calculate drink quantities for corporate events, use guests × hours × drinks per person per hour, allowing two drinks per person in the first hour and one for every hour after. For example, 50 guests over three hours works out at 200 drinks plus 20 spare.
- Drinks per person usually land between three and five at a typical corporate gathering.
- A two-hour event needs roughly three drinks per person, so 30 guests means 90 drinks.
- The Go Biggest Party Pack holds 24 bottles and delivers 72+ drinks.
- The Go Bigger Party Pack gives you 12 bottles and 36+ cocktails.
- Order for the drinking pace, not the headcount: 40 people having three drinks need 120 servings.
Hosting a corporate event soon?Ready-to-drink cocktails delivered through the letterbox, with build-your-own boxes for events.
Plan Your Event Drinks
Table of Contents
- The Simple Formula for Drink Quantities at Corporate Events
- Working Out Drinks Per Person for an Event
- How Many Drinks for a Two-Hour Event
- Frequently Asked Questions
The Simple Formula for Drink Quantities at Corporate Events
Working out drink quantities for corporate events comes down to one simple formula: guests × hours × drinks per person per hour. A common rule of thumb is two drinks per person for the first hour and one for every hour after.
Here is the calculation in full:
So for 50 guests over three hours, that is 50 × 4 = 200 drinks, plus 20 spare.
The formula works because it builds in the natural slowdown after the first hour.
For a fuller planning guide on ordering cocktail delivery for a corporate event, our cocktail delivery planning guide walks through the whole process.
The core numbers behind the formula are easy to scan.
| Item | Value | Note |
|---|---|---|
| Drinks in first hour | Two per person | Rule of thumb |
| Drinks in each later hour | One per person | Rule of thumb |
| Example: 50 guests, three hours | 200 drinks plus 20 spare | 50 × 4 = 200 |
| Drinks per person at a typical corporate gathering | Three to five | Depends on guest count, length, time of day |
| Go Biggest Party Pack | 24 full-size bottles | Each 275ml bottle makes around three cocktails |
| Go Biggest Party Pack output | 72+ drinks | One pack covers the headcount |
| Go Bigger Party Pack | 12 bottles | Delivers 36+ cocktails |
Working Out Drinks Per Person for an Event
Drinks per person usually land between three and five at a typical corporate gathering, depending on guest count, event length, time of day, and whether you serve alcohol only or a mix.
A quick way to set your assumptions:
The biggest mistake is ordering for the headcount rather than the drinking pace. A room of 40 people who each have three drinks needs 120 servings, not 40.
Once you know your total, a large multipack covers the headcount in one order. The Go Biggest Party Pack holds 24 full-size bottles, and each 275ml bottle makes around three cocktails, so one pack delivers 72+ drinks.
For a smaller group, the Go Bigger Party Pack gives you 12 bottles and 36+ cocktails.
How Many Drinks for a Two-Hour Event
A two-hour event needs roughly three drinks per person: two in the first hour and one in the second. For 30 guests, that is 90 drinks.
Short events are where people over-cater most, as guests switch to networking and put their glass down.
For a client drinks reception or staff thank-you, our corporate gifting range covers individual cocktail gifts. If you would rather let guests pick their own, our Build Your Own Boxes are an easy way to offer a choice without adding to your count.
Settled on your numbers? Our guide to ordering bespoke cocktail boxes for events shows how to place the order.
Keep this event drinks planning checklist handy:
Getting the numbers right is the difference between a relaxed event and a last-minute dash to the shop. At Letterbox Cocktails, we make the serving side simple: ready-to-drink cocktails delivered through the letterbox, build-your-own boxes for custom orders, and UK-wide delivery for corporate gifting. Get started with Letterbox Cocktails and plan your next event with the drinks already sorted.
Frequently Asked Questions
How many drinks should I plan per person at a corporate event?
Plan for two drinks per person in the first hour and one drink per person for each hour after that. For a mixed group, assume around 60% of guests will drink alcohol and 40% will choose soft options. Always add 10% extra to cover guests who arrive thirsty or stay longer than expected. A simple drinks per person for an event formula keeps your order realistic without overbuying.
How do I estimate drinks for a two-hour work event?
For a two-hour event, use three drinks per person as your base: two in the first hour and one in the second. If the event runs over lunch or finishes early, drop to two per person. For evening socials, keep three and add a small buffer. This answers how many drinks for a two-hour event without leaving you short or drowning in leftovers.
How can I avoid running out of drinks at a corporate event?
Build a 10% buffer into your total, offer a mix of alcoholic and non-alcoholic options, and serve ready-to-drink cocktails so nobody waits at a bar. Use an event drinks planning checklist to track quantities by hour, and keep a few extra bottles unopened. Ready-to-serve options like Letterbox Cocktails party packs make topping up simple because each 275ml bottle serves around three cocktails.
