Quick answer
The right number is the one your budget, your venue and the two of you can all live with. Agree on a range first, ideally 12 months before the wedding alongside your budget, then build the list in circles from closest to furthest until you reach it.
Start from money and space
Your guest count is limited by two things: what you can spend per person and how many people your preferred venues hold comfortably. Divide your budget by a few possible counts and look at what each leaves per guest. The answer often settles the debate faster than any list.
Agree on a range before you book
Decide a range, not a single number, before touring venues. A venue that seats exactly your number leaves no room for the late additions every list gets. A venue far bigger than your number feels empty and usually costs more.
Build the list in circles
Start with immediate family and the friends you cannot imagine the day without. Then extended family, then close friends, then everyone else. Stop when you reach your range. Building outward keeps the people who matter most from being squeezed out by obligations.
Use a few honest questions
For each name in the outer circles, ask: have we spoken in the last year? Would we invite them to dinner? Will they still be in our lives in five years? Two "no" answers is usually a sign the name can go.
Remember not everyone will come
Some invited guests will decline, especially those who would have to travel. Do not over-invite on the hope of declines, though: if everyone says yes, you must still be able to feed and seat them.
Write the number down
Once you agree, write the number next to your budget and treat it like one. Every addition after that point should be a joint decision with a trade-off, not a quiet extra line.
Frequently asked questions
How do we decide how many wedding guests to invite?
Divide your budget by a few possible counts, check what your preferred venues hold comfortably, and agree a range. Then build the list from closest to furthest until you reach it.
Should we invite more people because some will decline?
Only cautiously. Some guests will decline, but if everyone says yes you still need to feed and seat them, so never invite more than your venue and budget can handle.
When should we decide our guest count?
Early, together with the budget. Our planning checklist puts setting a working budget and guest count range 12 months before the wedding, before booking a venue.