Bar & Drinks Calculator
Estimate drinks for an event from guests, hours and a per-hour rate, split across beer, wine and spirits by your chosen mix, then converted to bottles. Calculates in your browser.
Total drinks
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Show the math
Drinkers multiply by hours and a per-hour rate, then split across beer, wine and spirits by the chosen mix:
drinks = guests × drink% × hours × per-hour rate
A 750ml bottle yields about 5 wine pours or 16 cocktail shots. A common rule of thumb is one drink per guest per hour, more for the first hour.
Estimates only, please serve responsibly. Everything is calculated in your browser.
What this does
A bar and drinks calculator estimates drinks for an event from guests, hours, and a per-hour rate, split across beer, wine, and spirits by your chosen mix, then converted to bottles.
How to use it
- Enter drinkers and hours.
- Set the drinks-per-hour rate.
- Choose your beer/wine/spirit mix.
- Read the bottles to buy.
How it works
One drink per guest per hour is a common rule, often more in the first hour. A 750 ml wine bottle pours ~5 glasses; a 750 ml spirit makes ~16 cocktails at 1.5 oz.
drinks = drinkers × hours × rate
Understanding your result
One drink per guest per hour is the baseline, usually higher in the first hour and lower later, so weight your order to the early rush. Tune the beer, wine, and spirits mix to your crowd rather than the default, and buy a little extra of anything returnable so you do not run dry; remember non-drinkers and kids lower the real count.
Example
50 drinkers over 4 hours at one per hour is 200 drinks — about 40 bottles of wine if all wine.
Sources & methodology
Last updated .
Frequently asked questions
How much alcohol do I need for a party?
A common rule is one drink per guest per hour, often a bit more in the first hour. Multiply drinkers by hours and that rate, then split across beer, wine and spirits.
How many drinks does a bottle make?
A 750ml wine bottle pours about 5 glasses, and a 750ml spirit bottle makes roughly 16 cocktails at 1.5 oz each.
What drink mix should I choose?
A balanced 40/40/20 beer/wine/spirit split suits most crowds; choose beer-and-wine only or a cocktail-forward mix to match your guests.
Is my data kept?
No. Everything is computed locally in your browser.
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