100th birthday party planner
A hundredth birthday is rare enough that local papers, schools and officials often want to mark it. Plan the family celebration first — at the time of day that suits them best — then add the extras: an official card, a visit, a story in the paper.
- Start planning
- 8 weeks ahead
- Guests
- Varies — often family plus drop-in visitors
- Planner length
- 3 months, starting now
Free to preview. Opens with the party pages, title and a 3-month calendar already set — change anything.

100th birthday countdown
Start 8 weeks ahead. These dates go on the countdown page of your planner, with tick boxes.
8 weeks before
Agree the plan with the family and carers, apply for official greetings.
6 weeks before
Invite guests, book any venue, contact local press if wanted.
4 weeks before
Collect photos for each decade, order the cake.
2 weeks before
Confirm visitors and timings, print the displays.
On the day
Short and gentle, with rests; record messages for them to enjoy later.
100th birthday ideas
Pick one and build the plan around it. There are blank ideas pages in the planner for screenshots and sketches.
A century in pictures
One photo for each decade, from the 1920s on.
Then and now
Prices, inventions and songs from the year they were born.
Official greetings
In the UK the monarch sends a card for 100th birthdays; in the US the White House sends greetings on request. Apply early.
Local press
Local papers and radio often want to cover a centenarian — only if they'd enjoy it.
Letters from the youngest
Great-grandchildren draw or write what they'd like to know about 100 years.
What's in the planner
Every page is linked from a tab, so you tap once to reach the guest list or the budget.
- Event Overview
- Party Countdown
- Party Budget
- Guests & RSVPs
- Menu & Drinks
- Shopping List
- Decor & Supplies
- Vendors
- Day-Of Timeline
- Photo Shot List
- Gifts & Thank-Yous
- Ideas & Inspiration
- Monthly and weekly calendar
- Notes
Tips for a 100th birthday
- Check official greeting schemes in your country early — they need time and proof of age.
- Keep the party short and plan a rest in the middle.
- Ask them for a story from each decade — write them on the ideas pages.
- Keep the thank-you list going for weeks; cards come from everywhere.
100th birthday questions
How do I get a card for a 100th birthday?
In the UK you apply for the monarch's congratulations; in the US you request a White House greeting. Rules and lead times change, so check the official sites a couple of months ahead.
What do you do for a 100th birthday?
A family gathering at the best time of day for them, a century-in-pictures display, letters from great-grandchildren and, if they'd like it, a visit from the local press.
Can I print the planner?
Yes — Letter or A4, ready to print.
Other birthdays
Also: anniversary planners by year, wedding checklists by timeline, or the party planner.
Plan the 100th in one place
Countdown, budget, guests, menu, decor, photos and thank-yous — hyperlinked for GoodNotes, Notability or print.