RSVP deadline calculator
A useful deadline leaves time to follow up with missing households before you commit to a headcount.
Use the calculator
Choose an RSVP deadline from the event date and the date your venue, caterer, or host needs the final count.
The interactive calculator loads here. Your entries remain in this browser.
How the estimate works
The deadline is the event date minus the vendor lead time and the number of days the host wants for follow-up.
Use the result as a planning estimate and change it for your guests, menu, room, and local requirements.
Use the real headcount
Create the invitation and collect household replies before making the final plan.