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Party Hat Calculator — Hats & Accessories

Calculate party hats, blowers, and accessories for each guest.

Number of children attending

Number of adult guests

Hats per pack

Amount in pounds sterling

Blowers per pack

Amount in pounds sterling

Spare percentage as a percentage

How We Calculate This

This calculator works out party hat and blower pack quantities including spares.

Formula

  • Total hats = (children + adults) + spares
  • Hat packs = total hats / hats per pack (rounded up)
  • Blower packs = total hats / blowers per pack (rounded up)
  • Grand total = hat cost + blower cost

Frequently Asked Questions

Last updated: February 2026

All calculations are estimates. Adjust quantities based on your guests and event type.