Wedding Alcohol Calculator: How Much Beer, Wine and Spirits to Buy

Use this wedding alcohol calculator to estimate how much beer, wine, and spirits to buy for your reception. It turns your guest count, reception length, drinking percentage, drink mix, bottle prices, and buffer into practical shopping numbers.

How to use the wedding alcohol calculator

Start with your total guest count and reception length. Then estimate what percentage of guests will drink alcohol. A wedding with 100 guests does not usually mean 100 drinkers, because some guests may be children, pregnant, driving, sober, or simply not drinking.

Next, choose a drinks-per-hour rate. One drink per drinking guest per hour is a common planning estimate for a mixed wedding reception. Use a lower number for a short daytime reception and a higher number for a long evening party or a crowd that drinks more heavily.

How much alcohol do you need for a wedding?

A simple starting formula is:

Total drinks = drinking guests x reception hours x drinks per hour x buffer

After that, split the total drinks between wine, beer, and spirits. The default split in this calculator is 45% wine, 35% beer, and 20% spirits, but you can change it to match your guests, season, venue, and menu.

Wedding wine, beer and spirits planning

Wine is often calculated at about five servings per standard bottle. Beer is usually easiest to plan as individual bottles or cans, then convert into cases. Spirits vary by pour size, but a 750 ml bottle commonly gives around 16 to 17 standard mixed drinks.

If your venue supplies the bar, use their package price instead of retail bottle prices. If you are buying your own alcohol, ask whether unopened bottles or unused cases can be returned. That return policy can make a bigger buffer much safer.

How to estimate the alcohol budget

The calculator multiplies the estimated bottle and unit counts by your prices, then adds tax or service charge. This gives a practical bar budget you can compare with your full wedding budget calculator total.

For a more guest-focused view, compare this result with the wedding cost per guest calculator. Alcohol is often one of the biggest guest-driven costs after catering.

Ways to reduce wedding alcohol costs

• Serve beer and wine only instead of a full open bar.
• Limit spirits to one or two signature cocktails.
• Close the bar during dinner service if your venue allows it.
• Choose a shorter hosted bar window, then switch to cash bar.
• Buy by the case where returns are allowed.
• Match the drink mix to your guests rather than using a generic package.

Related wedding calculators

• Wedding Guest List Cost Calculator - see how extra guests affect food, drinks, rentals and budget.
• Wedding Venue Budget Calculator - compare venue packages, service charges and minimum spend.
• Wedding Savings Calculator - plan monthly savings before the wedding.
• Wedding Budget Calculator - estimate your total wedding budget.

FAQ

How many drinks should I plan per wedding guest?

For guests who drink alcohol, one drink per hour is a common baseline. Increase it for a long evening reception or a crowd that drinks more, and reduce it for a short daytime event.

How many glasses are in a bottle of wine?

A standard bottle of wine usually gives about five servings. If your venue pours smaller glasses, you may get more servings per bottle; if pours are generous, you may get fewer.

How many drinks are in a bottle of spirits?

A 750 ml bottle usually gives about 16 to 17 standard mixed drinks, depending on pour size. The calculator uses 17 by default, but you can change it.

Should I include a buffer?

Yes. A 10% buffer is a sensible starting point, especially if unopened bottles can be returned. Use a smaller buffer if storage or budget is tight.

Does this replace my venue quote?

No. Use this as a planning estimate. Always compare it with your venue's bar package, corkage fee, staffing cost, service charge, tax, and alcohol rules.