Birthday Party Planning Hub

From first birthdays to the big 5-0. We help you handle the math so you can focus on the fun.

Why use a Birthday Party Calculator?

Planning a milestone birthday involves more math than you might think. Whether you're hosting aFirst Birthday smash cake session or a Sweet 16 bash, the biggest stressor is usually the budget and the food.

Our free tools help you answer the most common questions:

  • How much pizza do I need? (Rule of thumb: 2 slices per adult, 1 per kid)
  • How many balloons for an arch? (You'll need at least 100 balloons for a standard 8ft garland)
  • What is a realistic budget? (Use our reverse calculator to see where your money goes)
  • How to structure the party flow? (A good timeline prevents boredom and chaos)

Don't guess. Use data to plan the perfect party.