In assisting customers with event planning, responsible retailing is of the essence. To determine how much product is appropriate for a given customer, many store operators use a simple multiplier. After determining the number or quests expected, multiply that number by the number of hours the party is intended to last. The product of those two numbers hours equal the number of servings available.
A party of 100 adults scheduled to last three hours, for example, should have approximately 300 alcohol servings, along with the selection of non-alcoholic drink choices. Listed below are some guidelines to use in calculating quantities for customers.
Guests x Hours = Servings
Drinks Per Bottle & Bottle Size
Distilled Spirits & Liqueurs
(Based on 1.5 oz Liquor Serving Per Drink)
| Bottles | 1 | 2 | 4 | 6 | 8 | 10 | 12 |
| 750 ML (24.4 oz) | 16 | 33 | 67 | 101 | 135 | 169 | 203 |
| 1 Liter (33.8 oz) | 22 | 45 | 90 | 135 | 180 | 225 | 270 |
| 1.75L (59.2 oz) | 39 | 78 | 157 | 236 | 315 | 394 | 473 |
Wine & Champagne
(Based on 5 oz Wine Serving Per Glass)
| Bottles | 1 | 2 | 4 | 6 | 8 | 10 | 12 |
| 750 ML (24.4 oz) | 5 | 10 | 20 | 30 | 40 | 50 | 60 |
| 1 Liter (33.8 oz) | 6 | 13 | 27 | 40 | 54 | 67 | 81 |
| 1.5 Liter (59.2 oz) | 10 | 20 | 40 | 60 | 81 | 101 | 121 |
| 3 Liter (101 oz) | 20 | 40 | 80 | 121 | 161 | 202 | 242 |
| 27 | 54 | 108 | 162 | 216 | 270 | 324 |
