Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Event Planning & Niche Hobbies
DIY Wedding Open Bar Alcohol Purchasing Calculator
Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
Estimate bottles needed for a DIY open bar by guest count. Planning estimates only — verify measurements independently.
Inputs
20500
28
0.53
Smart analysis
Recommendations
Tailored to your live inputs and result—guidance only, not professional advice.
- Interpret
Treat this as a planning estimate
Primary result: Total drinks = 720. Re-run with optimistic and pessimistic inputs to understand the range—not just a single point.
Scenario studio
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Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Guests
The “Guests” value used in this tool’s formula. Adjust it to see results update live.
Event hours
The “Event hours” value used in this tool’s formula. Adjust it to see results update live.
Drinks/guest/hr
The “Drinks/guest/hr” value used in this tool’s formula. Adjust it to see results update live.
How this calculator works
Estimate bottles needed for a DIY open bar by guest count. Planning estimates only — verify measurements independently. Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5. Example: 120 guests, 4 hr, 1.5 drinks/hr → ~144 drinks (~29 bottles).
Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
Example: 120 guests, 4 hr, 1.5 drinks/hr → ~144 drinks (~29 bottles).
When to use this DIY Wedding Open Bar Alcohol
Common use cases
- Estimate bottles needed for a DIY open bar by guest count.
- Sanity-check with this case: 120 guests, 4 hr, 1.5 drinks/hr → ~144 drinks (~29 bottles).
- The relationship is: Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
Localized examples
- Event Planning & Niche Hobbies: the example on this page uses the same formula as the widget.
What you get
- Fields: Guests, Event hours, Drinks/guest/hr
- Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
- Example on the page: 120 guests, 4 hr, 1.5 drinks/hr → ~144 drinks (~29 bottles).
How to Calculate DIY Wedding Open Bar Alcohol Step-by-Step
- 1Enter Guests, Event hours, Drinks/guest/hr. Use the values you have, not a catalog average, unless that is all you know.
- 2Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
- 3Worked case: 120 guests, 4 hr, 1.5 drinks/hr → ~144 drinks (~29 bottles).
- 4Order a little extra. Resin, fabric, and clay do not read a spreadsheet.
Governing formula
Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
120 guests, 4 hr, 1.5 drinks/hr → ~144 drinks (~29 bottles).
Example: set Guests = 120, Event hours = 4, Drinks/guest/hr = 1.5, then read the result.
Variable definitions
- guests
Guests
The “Guests” field. Default 120; typical range 20–500.
- hours
Event hours
The “Event hours” field. Default 4; typical range 2–8.
- drinksPerGuestHour
Drinks/guest/hr
The “Drinks/guest/hr” field. Default 1.5; typical range 0.5–3.
- Volume math (Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.) does not include your waste, test pour, or the batch that cures wrong. Add a buffer.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
Drinks = guests × hours × drinks/hr; bottles ≈ drinks ÷ 5.
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Community
Reviews & Ratings
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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