The BAC Calculator

EVENT PLANNING TOOL

Party drinks.
Plan every option.

Turn your own event inventory assumptions into a simple beverage checklist. Water, appealing alcohol-free choices, food, and a sober way home belong in the plan from the start.

PARTY DRINK CHECKLIST

Build an inclusive stock list.

Enter your event assumptions

A serving count does not show alcohol strength. Check the actual product's container size and ABV separately.

LABEL-BASED PLANNING

Serving count is
not alcohol amount.

A beer or wine serving can vary substantially by container size and ABV. After you make your inventory list, check the actual labels so a generic serving count does not hide a stronger product.

Calculate a full can or bottle
Calculate a cocktail recipe
Check beer labels and examples

How this party checklist works

The tool multiplies the guest count by the alcohol-serving number you enter. It then applies your beer-share percentage, with the remainder shown as wine servings. It also shows two simple non-alcohol prompts: two water servings per guest and one alcohol-free serving per guest. These are editable planning assumptions, not health advice or guarantees.

Plan for people who are not drinking

Make alcohol-free choices visible and easy to get, not an afterthought. Ask the venue about food, water access, serving policies, and accessibility. Do not pressure anyone to drink or explain their choice.

Keep transport separate from alcohol estimates

A serving count, product label, or online BAC estimate cannot tell you whether a particular person can drive safely or legally. Arrange a sober driver, taxi, rideshare, public transport, or overnight plan before alcohol is involved.

Use this page to plan options, not to plan consumption. If someone has been drinking, choose a sober way home.

Sources and review

  1. U.S. National Highway Traffic Safety Administration: drunk-driving information
  2. The BAC Calculator: methods and limits

Last reviewed: July 23, 2026 · Read our editorial policy.

PLAN WITH CONTEXT

Check labels and keep costs visible.

Label comparison

Compare planned containers

Serving counts do not show strength. Compare labels by container size, ABV and pure alcohol.

Compare labels →Personal budget

Review typical spending

For regular personal purchases, use your own cost and frequency assumptions in a private budget estimate.

Estimate spending →