Alcohol estimate for 100 guests at a 4-hour reception

For 100 adult guests over about 4 hours with an average drinking profile, the estimate below is lower than a 5-hour reception. Use bar service time rather than the full venue hire period.

How to use this guest-count example

This example uses 100 adult guests, 4 hours of bar service, and a average drinking profile. The calculator produces a shopping-list estimate, so the result should be reviewed against the actual schedule, guest mix, and venue rules.

• Count adult guests who may drink alcohol, not the total invitation count.
• Use the hours when drinks are served, not automatically the full venue hire period.
• Change the profile if the group is clearly lighter or heavier than average.

Before turning it into an order

The example splits 550 estimated drinks into wine, beer, and spirits using the entered percentages. Convert the rounded bottles and cans into supplier case sizes before buying.

• Plan water, soft drinks, alcohol-free options, ice, glassware, and garnishes separately.
• Ask whether unopened bottles or cases can be returned.
• Follow venue rules, licensing requirements, and responsible-service limits.

100 guests, 4 hours bar-planning checks

Example inputs used

• Adult guests: 100
• Event length: 4
• Drinking profile: average
• Wine share: 50
• Beer share: 35
• Spirits share: 15

These are starting values for this example. Measure or confirm your own figures, then open them in the wedding alcohol calculator.

Assumptions and limits

• Assumes adult guests only and a 4-hour bar period.
• Uses an average drinking profile and a 50/35/15 split.
• Includes a 10% buffer.

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