How many bottles of liquor for 100 guests?
If 40% of 100 adult guests drink cocktails, three each, that is 120 drinks — about 9 bottles of 750 ml liquor at a 1.5 oz pour with 10% extra, or 3 bottles of each of three spirits, and about 4.1 gal of mixers.
How to work it out
- 100 adults × 40% × 3 drinks (1 + 1 × 2 more hours) = 120 drinks
- 750 ml ÷ 1.5 oz = 16.9 drinks per bottle → 120 drinks ÷ 16.9 + 10% = 7.8, rounded up per spirit = 9 bottles
A hundred-guest party with a full bar alongside beer and wine needs less liquor than people expect, because most guests split their evening between drinks. The count depends on how many guests drink cocktails and on measuring the pour.
Adjust for your project
More options: Cocktail drinkers · Per hour · Mixer …
- Of each spirit
- 3 bottles
- Mixed drinks
- 120 drinks
- Drinks per bottle at this pour
- 16.9
- Mixers
- 4.1 gal
- Mixers in 2-liter bottles
- 8 bottles
- Use a jigger. A free pour is often far more than 1.5 oz, which empties bottles faster and makes stronger drinks than guests expect.
Bottles by bottle size (guests and drinks as above)
| Bottle | Bottles of liquor | Of each spirit | Drinks per bottle at this pour |
|---|---|---|---|
| 750 ml | 9 bottles | 3 bottles | 16.9 |
| 1 L | 6 bottles | 2 bottles | 22.5 |
| 1.75 L | 6 bottles | 2 bottles | 39.4 |
Nine bottles, three spirits
Forty cocktail drinkers at three drinks each make 120 drinks. A 750 ml bottle pours about 17 drinks at NIAAA’s 1.5 oz standard, so 120 drinks is about seven bottles, nearly eight with 10% extra. Split across vodka, whiskey and rum, that rounds up to three of each: nine bottles. In 1.75 L handles, which hold about 39 drinks each, it is about 3½ bottles’ worth — two handles of each spirit if you stock three.
| 100 adults | Cocktail drinkers | Drinks | 750 ml bottles (+10%) |
|---|---|---|---|
| Beer and wine first, small bar | 30 | 90 | about 6 |
| Full bar (default) | 40 | 120 | about 8 |
| Cocktail-heavy crowd | 60 | 180 | about 12 |
| Long night, four each | 40 | 160 | about 11 |
Mixers, ice and garnish
At 4 oz of mixer per drink, 120 drinks need about 4 gallons — eight 2-liter bottles of tonic, club soda, cola and ginger ale, plus juice. Cocktails use more ice than any other drink; count the bar separately in the ice calculator. Limes and lemons: a few dozen of each.
- Measure every pour with a jigger; it keeps drinks at one standard drink and the bottles on plan.
- Close the bar before the end and put out coffee, water and food.
- Consider a bartender for a crowd this size, and ask your venue or caterer whether one is required.
Wine and beer for the same hundred: how many bottles of champagne for a toast for 100 guests and how many kegs for 100 guests. Bottle math: how many shots in a fifth.
Different size? Use the full Liquor Calculator for a Party Bar.
What you’ll need
- Bar jigger (1½ oz / ¾ oz)Budget price
Measured pours make the bottle count match the plan, and keep drinks at a known strength.
See options on Amazon (opens in a new tab)
As an Amazon Associate we earn from qualifying purchases. Links to products are affiliate links — they cost you nothing extra and help keep these calculators free.
Frequently asked questions
How many bottles of liquor for 150 guests?
About 12 bottles of 750 ml, 4 bottles of each of three spirits.
How many handles of liquor for 100 guests?
About 6 bottles of 1.75 L, split three ways.
How much liquor for 50 guests?
About 6 bottles of 750 ml, 2 bottles of each of three spirits.
Other common sizes
- How many shots in a fifth — about 17 shots of 1.5 oz
Sources
- NIAAA — What is a standard drink? (opens in a new tab) — One standard drink holds 0.6 fl oz (14 g) of pure alcohol: 12 fl oz of regular beer (about 5%), 5 fl oz of table wine (about 12%), or 1.5 fl oz of distilled spirits (about 40%).
- eCFR 27 CFR 5.203 — Standards of fill for distilled spirits (Cornell LII copy) (opens in a new tab) — Authorized spirits sizes include 750 mL, 1 L and 1.75 L.
- USDA/HHS — Dietary Guidelines for Americans, 2025–2030 (opens in a new tab) — “Limit Alcoholic Beverages”: consume less alcohol for better overall health; pregnant women, people recovering from alcohol use disorder or unable to control how much they drink, and people on interacting medications should avoid alcohol completely. No daily drink numbers are given.
- CDC — Moderate alcohol use (page dated January 14, 2025) (opens in a new tab) — Defines moderate drinking for adults of legal drinking age as two drinks or less in a day for men and one drink or less for women, citing the 2020–2025 Dietary Guidelines.
- NIAAA — Understanding the dangers of alcohol overdose (opens in a new tab) — Blood alcohol can keep rising after drinking stops; coffee, cold showers and walking do not reverse it; if you suspect an overdose, call 911 and do not leave the person alone.