Timing tool · Free to use
Wedding RSVP deadline calculator
Start from the date your vendors need a final count, count back the time you need, and see when RSVPs should be due and when invitations should go out.
How do you set a wedding RSVP deadline?
Start from the earliest final-count deadline in your vendor agreements, not the wedding date. Count back the days you want for chasing late replies, collecting meal choices and finishing seating; that is your RSVP date. Then count back the weeks guests should have to reply, plus mailing time, to find when invitations go out.
Your entries are kept in this browser so they are here when you come back. They are not uploaded, and Clear entries removes them. The calculator counts calendar days and does not read your agreements.
Example values are filled in: a hypothetical wedding on Saturday, October 16, 2027, a final count due 14 days before, 12 follow-up days, 4 weeks for guests to reply and 5 days in the mail. They are an illustration, not a recommendation. Replace each one with your own.
Your RSVP date
- Send invitations by59 days before the wedding
- Invitations in guests’ hands by54 days before the wedding
- RSVP date26 days before the wedding
- Final guest count due14 days before the wedding
- Wedding date
These dates are arithmetic on your entries. Only the final-count deadline comes from a vendor; confirm it and how the count should be submitted.
The calendar file holds three date-only entries (send invitations, RSVP date, final count) with no automatic alerts. It is a snapshot; replace the events if a date changes, since importing again may create duplicates.
The calculation, in plain sight
- Final-count date = the date you enter, or the wedding date − the number of days before the wedding.
- RSVP date = final-count date − your follow-up days.
- Invitations in guests’ hands by = RSVP date − (weeks to reply × 7) days.
- Send invitations by = that date − days in the mail (0 when left blank).
The steps count calendar days in UTC, so weekends, month ends, leap days and the change of year are counted exactly, and no date moves with your time zone. A date before today is flagged, as is an RSVP date that falls on the final-count deadline.
For the labeled example in the calculator, a wedding on Saturday, October 16, 2027 with a final count due 14 days before puts the count on Saturday, October 2, 2027. Twelve follow-up days before that gives an RSVP date of Monday, September 20, 2027. Four weeks, or 28 days, earlier is Monday, August 23, 2027, when invitations should be in guests’ hands, and 5 days in the mail means sending them by Wednesday, August 18, 2027.
Where this model stops
The calculator works with one final-count deadline: the earliest you enter. Meal selections, seating charts, rental adjustments and staffing may have their own cutoffs. Put those dates on your calendar separately and check that your RSVP date comes before the ones that depend on guest replies.
It counts calendar days only. It does not skip weekends or holidays, does not know a vendor’s business hours or a time-of-day cutoff, and does not estimate postal delivery; the mailing days are your own figure. Weekday names are for the date shown and are not a check that anyone is available that day.
It does not decide what an agreement allows after the final count is submitted, such as later additions or reductions. Read that wording and confirm it with the vendor. The guest count deadlines guide covers the questions to ask.
Common questions
When should wedding RSVPs be due?
Early enough before your earliest final-count deadline to follow up on missing replies, collect meal choices and finish seating. How many days that takes depends on your guest list and who is doing the follow-up, so the calculator asks you to choose the gap rather than assuming one.
Which final-count deadline should I use?
Use the earliest one. If the caterer wants the count 14 days before and the rental supplier wants it 21 days before, the 21-day date is the one your RSVP date has to beat. Take the dates from the agreements or written confirmations.
How do I count the days before the wedding?
The calculator counts calendar days, including weekends and holidays. 14 days before a Saturday wedding is the Saturday two weeks earlier. If an agreement counts business days or sets a time of day, convert it to a calendar date with the vendor and enter it as a date.
What if the send-by date has already passed?
The calculator flags a date that is before today. You can shorten the reply time, the follow-up time or the mailing time, or ask the vendor whether a later final-count date is available. Get a changed vendor date in writing.
Does the calendar download set reminders?
No. The .ics file holds three date-only entries with no alerts. Your calendar may apply its own defaults, so check the imported events and choose notifications that work for you.