How Much Alcohol Do You Need for a Wedding? (A Comprehensive Guide)

We created our Alcohol Purchasing Calculator and Alcohol Purchasing Guide — to help couples estimate beer, wine, liquor, mixers, ice, garnishes, and champagne toast quantities with more confidence. A common starting point is to estimate about one drink per guest per hour, then adjust based on your crowd, event length, season, venue, and whether you are serving beer, wine, cocktails, or a full bar. Our Alcohol Purchasing Calculator helps turn your wedding details into a practical shopping list. Instead of guessing, you can enter your guest count, event length, drinking style, beer/wine/cocktail percentages, champagne toast preference, and selected signature cocktails. The calculator can estimate: * Beer quantities * Red, white, rosé, and sparkling wine * Liquor for cocktails * Signature cocktail ingredients * Champagne toast bottles * Mixers * Garnishes * Ice for service * Ice for chilling beer and wine * Printable shopping list This makes it especially helpful for dry hire bartending, where you provide the alcohol and our mobile bartending team provides the labor, setup, service, tools, and guidance. A Simple Wedding Alcohol Formula A good starting formula is: Guest count × event hours × drinking level = estimated total drinks For example: 100 guests × 4 hours × 1.25 drinks/hour = 500 estimated drinks From there, divide the total drinks into your bar mix. A sample full bar mix might be: * 40% cocktails * 30% wine * 30% beer How Much Wine Do You Need? A standard 750ml bottle of wine provides about 5 glasses. When planning wine, consider: * Red vs. white preference * Season and weather * Menu pairing * Indoor vs. outdoor setting * Guest demographics * Whether you are also offering cocktails For many weddings, a balanced wine mix includes red, white, and possibly rosé or sparkling. How Much Beer Do You Need? Beer is usually estimated as one bottle or can per serving. For casual weddings, summer weddings, backyard weddings, and outdoor events, beer consumption can be higher. For more formal receptions with signature cocktails, beer may represent a smaller percentage of the total bar. A useful alcohol purchasing guide should account for: * Domestic beer * Craft beer * Cider or seltzer * Non-alcoholic beer * Chilling ice * Venue refrigeration How Much Liquor Do You Need? For cocktails, a 750ml bottle of liquor typically yields around 16–17 standard 1.5 oz pours, depending on pour size and recipe. The amount of liquor needed depends heavily on: * Number of signature cocktails * Pour size * Whether cocktails are batched * Whether beer and wine are also served * Whether guests prefer spirits * Service length Signature cocktails are a great way to simplify purchasing because they reduce the number of spirits, mixers, and garnishes needed. Champagne Toast Calculator If you are doing a champagne toast, plan separately from the main bar. A common estimate is: 1 bottle of champagne or sparkling wine for every 6 guests Example: 120 guests ÷ 6 = 20 bottles of champagne Add a small buffer if every guest will participate. Do Not Forget Ice Ice is one of the most commonly underestimated bar items. You need ice for two different purposes: Service Ice * Cocktails * Rocks drinks * Water stations * Soft drinks Chilling Ice * Beer * Wine * Champagne * Canned beverages Our Alcohol Purchasing Calculator separates service ice and chilling ice so your shopping list is more realistic. Dry Hire vs. Wet Hire Bartending Dry Hire Bartending With dry hire bartending, you purchase the alcohol, beer, wine, mixers, and beverages. We provide the professional mobile bartender team, bar setup support, service tools, labor, and planning guidance. Dry hire is popular because it gives couples more control over: * Alcohol brands * Budget * Wine selections * Signature cocktails * Leftover alcohol * Retail purchasing options It also makes our Alcohol Purchasing Calculator especially useful, because it helps you know what to buy before the event. Wet Hire Bartending With wet hire bartending, the bar provider supplies the alcohol and handles more of the purchasing and inventory management. This can be convenient, but it may offer less flexibility depending on venue rules, licensing, and package structure. For many Seattle-area weddings, dry hire is a practical and cost-effective option when paired with a professional mobile bartender. What Affects Wedding Alcohol Needs? No alcohol purchasing guide can be perfect without context. The right quantity depends on: * Guest count * Drinking age guest count * Event length * Time of day * Season and weather * Indoor vs. outdoor venue * Beer/wine only vs. full bar * Number of signature cocktails * Champagne toast * Guest demographics * Cultural preferences * Transportation and lodging * Venue rules * Last call timing For example, a summer outdoor wedding with a younger crowd and a long reception may need more beer, sparkling beverages, and ice. A formal plated dinner with older guests may lean more toward wine. Why Use an Alcohol Purchasing Calculator? A good Alcohol Purchasing Calculator does more than estimate bottles. It should create an actual shopping list that helps you buy confidently. Our calculator helps answer questions like: * How much beer should I buy for my wedding? * How much wine do I need for 100 guests? * How many bottles of liquor are needed for signature cocktails? * How much champagne do I need for a toast? * How much ice do I need for a wedding bar? * What garnishes and mixers should I purchase? * How do I split beer, wine, and cocktails? The goal is not just to estimate alcohol — it is to make the entire bar easier to plan. Wedding Alcohol Purchasing Guide: Quick Rules of Thumb * Start with 1 drink per guest per hour * Add a buffer for heavier-drinking crowds or longer events * Estimate 5 glasses per bottle of wine * Estimate 16–17 drinks per 750ml liquor bottle * Estimate 1 beer/can per beer serving * Estimate 1 bottle of champagne per 6 guests for a toast * Plan ice for both service and chilling * Include mixers, garnishes, water, and non-alcoholic drinks * Consider signature cocktails to simplify purchasing * Confirm venue rules before buying alcohol Final Thoughts The easiest way to avoid stress is to combine a realistic alcohol purchasing guide with a professional mobile bartending team. Our Alcohol Purchasing Calculator gives you a practical starting point, while our bartenders help make sure the bar runs smoothly on the day of your wedding. Whether you are planning a dry hire bar, a full-service bar, beer and wine service, or signature cocktails, Shake Rattle & Pour by Home Bites Catering can help you build a wedding bar that feels organized, polished, and guest-friendly.