Plus-One Calculator

Calculate the budget impact of offering plus-ones to single guests. See how different plus-one policies affect your total cost and guest count.

Results

Visualization

How It Works

Plus-ones typically add 15-30% to your guest count. About 75% of offered plus-ones are used. Etiquette suggests offering plus-ones to all guests in serious relationships and out-of-town singles.

The Formula

Added Cost = Plus-Ones Offered x Accept Rate (75%) x Cost Per Guest

Variables

  • Plus-Ones Offered — Number of single guests receiving a +1 invitation
  • Accept Rate — About 75% of plus-ones are used
  • Cost Per Guest — Variable cost per additional person

Example

40 single guests, serious-only policy: 16 plus-ones offered, 12 attend at $150 each = $1,800 added cost.

Tips

  • Be consistent — if one friend gets a +1, all friends in that group should too
  • Out-of-town singles really appreciate plus-ones
  • Named plus-ones (vs. "and Guest") feel more personal
  • Consider the guest experience — will singles know other people there?

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