A first birthday party is really a party for the grown-ups who love the baby. Keep it to 90 minutes to 2 hours, time it around the baby's best nap, invite family and close friends, and make the smash cake the main event. The baby needs a calm room and a nap afterwards; the guests need food, a seat and a good view of the cake.
Part of our birthday party ideas by age series. For the full to-do list, see the first birthday party checklist. If you'd rather not track the rest by hand, Festidy's free birthday party planner turns your date and guest count into a dated checklist and a shopping list.
The plan at a glance
| What | For a first birthday |
|---|---|
| Length | 90 minutes to 2 hours |
| Guests | Family and close friends; a few babies or toddlers, mostly grown-ups |
| Activities | A smash cake, photos, a play mat; no games needed |
| Best start time | Right after the baby's longest nap, often 10 am or 3:30 pm |
| Food | Real food or a light meal for the grown-ups, soft finger food for little ones |
| Invitations out | 3 to 4 weeks before, replies due a week before |
First birthday themes
The theme is mostly for photos and the invitation, so pick one you like looking at. These have great "one" puns:
- Berry sweet: "Berry first." Strawberries, pastel pinks, a berry cake.
- Safari: "Wild one." Jungle animals, greenery, an animal-print smash cake.
- Space: "First trip around the sun." Planets, stars, a navy and gold palette.
- Under the sea: "O-fish-ally one." Soft blues, fish, a bubble machine.
- Rodeo: "My first rodeo." Bandanas, hay bales, a western photo spot.
- Winter wonderland: "Winter ONEderland." For a December to February baby.
- Pumpkin: "Our little pumpkin." For a fall baby.
What to do at a first birthday
You don't need games. These fill 90 minutes nicely:
- The smash cake. A small cake just for the baby, a bib, a high chair on a washable mat, and a grown-up ready with the camera.
- A play corner. A big mat, soft toys and board books for babies and toddlers who come.
- A photo spot. A simple backdrop with the baby's name, or a "one" sign.
- A guest book or time capsule. Guests write a note for the baby to read at 18, or predict what they'll be like at 5.
- Bubbles. A bubble machine keeps every baby and toddler happy for 10 minutes.
Keep the room baby-safe: no small parts or loose decorations within reach, and no latex balloons where little hands can grab them (latex balloons and pieces are a choking risk for children under 8). Foil balloons tied up high are fine.
A 90-minute schedule
| Time | What happens |
|---|---|
| 0:00 | Guests arrive, food out, baby says hello |
| 0:30 | Grown-ups eat; babies on the play mat |
| 0:55 | Happy birthday and the smash cake |
| 1:15 | Cake for everyone, gifts if you open them |
| 1:30 | Goodbyes, baby down for a nap |
Food for a first birthday party
Most guests are adults, so feed them like adults: about 1 lb of food per grown-up for a meal, less for a snack-time party. For the babies and toddlers, soft finger food cut small: banana, soft-cooked vegetables, cheese, pasta, halved or quartered grapes. No popcorn, whole nuts, hard candy or whole grapes for little ones.
The cake: one serving per guest, plus the smash cake. Up to 12 servings is an 8-inch round or a dozen cupcakes; up to 24 is a quarter sheet. The cake size calculator works out the rest. For drinks, ice, plates and the rest, enter grown-ups and kids separately in the party food calculator.
What it costs
| Level | Per guest | 15 guests |
|---|---|---|
| Simple Home food, homemade games | $15 | $225 |
| Standard Bakery cake and one hired activity | $30 | $450 |
| Splurge Entertainer, rentals, and custom decor | $50 | $750 |
Most first birthdays land at the Simple or Standard level. A photographer for the cake smash (about $150 to $300 for 2 hours in the Dallas area) only fits a bigger budget; a friend with a good phone camera does the job.
Questions parents ask
How long should a first birthday party be?
90 minutes to 2 hours, starting right after the baby's best nap so they're happy for the cake.
How many people should I invite to a first birthday?
Family and close friends, as many as your space holds comfortably. Most will be grown-ups; a few babies or toddlers is plenty.
Do you need a theme for a first birthday?
No, but a simple theme makes the invitation, cake and photos easier to plan. Pick one with a "one" pun and keep it to a few colors.
Festidy plans a first birthday from the date and guest count: an invitation with RSVPs, a dated checklist and a shopping list sized to the replies, free and with no sign-up.
