Alcohol ...... how much to purchase

There’s a lot of factors to consider. I would try a calculator like this one from Big Red Liquors.
https://bigredliquors.com/drink-calculator/

View Quoted Comment Thank you appreciated because I’m stumped I don’t want to have left over considering we really don’t drink

How long is the reception, open bar, are your guests “drinkers”
The average person takes 20 min to sip on a beverage. Estimate 2 drinks per hour, the last hour of reception to sober up, 4-6 hour reception 4-6 drinks per person

Well my venue already supplied the alcohol I'm doing 3 hrs of open bar.

View Quoted Comment We are allowed to bring In out alcohol at our venue and they supply the bartender and mixers

View Quoted Comment Thank you , I just didn’t want a lot of alcohol left over considering me and my fiancé don’t consume alcohol like that

View Quoted Comment Oh ok it also depends how many hrs you want to serve alcohol and how many ppl

Since we’re having about 200 people were buying for about $2000 worth of alcohol and the rest we can use it for the bbq on Sunday

We will have around 200 people and are buying alcohol worth $2400. Anything unopened and unchilled can be returned.

View Quoted Comment I understand. My FH and I don’t drink at all, another reason why we chose a sunrise wedding. There will be a mimosa and Bloody Mary bar - that’s it for alcohol. Best decision I could’ve made in our planning

View Quoted Comment That’s a awesome idea!