Birthday Party Cost Calculator

How to Use This Calculator

1. Enter guest count and select party type.
2. Choose whether to include goody bags.
3. Use the kids, teen, or adult tabs for itemized breakdowns.
4. The Professional tab lets you set custom budgets per line item.

Formula

Example

Frequently Asked Questions

• How much does a kids birthday party cost? ▼
  A home kids party for 10-15 children typically costs $250-500 including cake, food, decorations, and goody bags. A venue party at a trampoline park, bowling alley, or party venue runs $500-1,500 depending on the package.
• How much does food cost per person for a birthday party? ▼
  For a kids party: $8-12 per child for pizza, chips, juice boxes, and cake. For an adult party: $25-50 per guest for catered food or $10-15 per person for DIY/potluck. Restaurant private dining typically runs $40-75 per person including a venue fee.
• What is a reasonable birthday cake budget? ▼
  A grocery store or Costco cake for 20 guests runs $20-50. A custom bakery cake ranges from $60-150 for a basic 2-tier design. Elaborate fondant or themed cakes can cost $150-400+.
• Are weekend birthday parties more expensive? ▼
  Yes — most venues charge a 15-25% premium for Saturday and Sunday bookings compared to weekday parties. Friday evening can be a cost-effective middle ground, especially for teen and adult parties.

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