Drink Calculator
Planning drinks for a party can be stressful. Our calculator accounts for party duration, adults and kids, alcohol preferences, and breaks down exactly how much beer, wine, liquor, kid-friendly juice, soda, and ice to buy.
The Host-Tested Guarantee
Built on real crowd portioning data and event planner benchmarks. Formulas tested for accurate catering without shortages.
📊 Party Beverage Quantity Chart (10 to 100 Guests)
Beverage quantities for a standard 3-hour event using the 2-drink first hour rule and 50/30/20 alcohol breakdown.
| Guests | Total Drinks Needed | Alcohol Breakdown (50/30/20) | Ice & Mixers |
|---|---|---|---|
| 10 Guests | 40 Drinks | 20 Beers, 3 Wine Bottles (12 glasses), 1 Liquor Bottle (16 pours) | 15 lbs ice + 1 gallon non-alcoholic soda or punch. |
| 20 Guests | 80 Drinks | 40 Beers (2 cases), 5 Wine Bottles, 1 Liquor Bottle | 30 lbs ice; budget 1 bottle of sparkling water per 4 guests. |
| 30 Guests | 120 Drinks | 60 Beers (3 cases), 8 Wine Bottles, 2 Liquor Bottles | 45 lbs ice + 2 gallons mocktails or iced tea for non-drinkers. |
| 50 Guests | 200 Drinks | 100 Beers (5 cases), 12 Wine Bottles, 3 Liquor Bottles (750ml) | 75 lbs ice; pre-chill all canned and bottled beverages 4 hours prior. |
| 75 Guests | 300 Drinks | 150 Beers (7 cases), 18 Wine Bottles, 4 Liquor Bottles | 115 lbs ice; set up two self-service drink stations to avoid lines. |
| 100 Guests | 400 Drinks | 200 Beers (9 cases), 24 Wine Bottles, 5 Liquor Bottles | 150 lbs ice; consider hiring a professional event bartender. |
How to Calculate Drinks for 20, 50, or 100 Guests
Quick-reference portion benchmarks and host-tested formulas for planning your gathering.
💡 Host Portion Rules of Thumb
- •For a 3-hour party of 50 adults: Plan for 200 total drinks (approx. 100 beers, 12 wine bottles, and 3 liquor bottles of 750ml).
- •For kids and non-drinkers: Budget 12–16 oz of soda, punch, or mocktail per guest.
- •750ml wine bottle = 5 glasses (5 oz each); 750ml spirit bottle = 16 cocktails (1.5 oz pour).
Drink Calculator Frequently Asked Questions
How do you calculate drinks for 50 people?
For a standard 3-hour party with 50 adult guests, plan on 200 total drinks (approx. 100 beers, 60 glasses of wine or 12 bottles, and 40 cocktails or about 3 liquor bottles, using a 50/30/20 split), plus 75 lbs of ice. The standard rule is 2 drinks per guest in the first hour and 1 drink per hour after that.
What is the 75/25 rule for party alcohol?
The standard formula assumes 75% of your adult guests will consume alcoholic beverages and 25% will prefer non-alcoholic mocktails, soda, or water. For evening parties or celebrations, drinker percentages typically rise to 80–85%.
How much ice do I need per person for a party?
Plan on 1.5 pounds of ice per person for chilling drinks in glasses, plus an additional 1 pound per person if you are keeping beverage cans or wine bottles cold in coolers or drink tubs.
How many bottles of wine do I need for a dinner party?
One standard 750ml bottle yields five 5-ounce glasses of wine. For a dinner party, plan on roughly half a bottle (2.5 glasses) per adult wine drinker.