Event Budget Calculator
Plan your event budget by estimating costs for venue, food, entertainment, and more.
Calculate total budget and cost per attendee.
Event budget planning helps you estimate the total cost of an event and understand how much each attendee effectively costs. This works for corporate conferences, weddings, parties, fundraisers, and any organized gathering.
The formulas:
Total Budget = Venue + (Food per Person × Attendees) + Entertainment + Decorations + Miscellaneous
Cost per Attendee = Total Budget / Number of Attendees
What each category covers:
- Venue — rental fee for the space, including any required deposits or overtime charges
- Food/Drink per Person — catering, beverages, dessert, and service staff. This is often the largest variable cost.
- Entertainment — speakers, DJs, bands, performers, or AV equipment rental
- Decorations/Setup — flowers, table settings, signage, lighting, and venue dressing
- Miscellaneous — photography, printing (programs, name badges), insurance, permits, and transportation
Typical budget allocation percentages:
| Category | Share of Budget |
|---|---|
| Venue | 25-35% |
| Food and Beverage | 30-40% |
| Entertainment / Speakers | 10-15% |
| Decorations / Setup | 5-10% |
| Miscellaneous | 5-10% |
Practical example: For 150 attendees with a $3,000 venue, $45/person food, $1,500 entertainment, $800 decorations, and $500 miscellaneous: Total = $3,000 + ($45 × 150) + $1,500 + $800 + $500 = $12,550. Cost per attendee = $83.67.
Tips: Always add a 10-15% contingency buffer for unexpected costs. Get final headcounts at least one week before the event since most caterers charge per confirmed guest. Negotiate package deals with venues that include tables, chairs, and basic AV to reduce separate line items.