Free · no signup · one link, no app

Baby Guess Pool

Everyone picks the arrival date and the weight; when bub actually lands, the closest guess wins the bragging rights.

Not sure what you get? See a finished pool →

Pixel art scene of a pram and a rattle under paper bunting, with soft confetti dots

How it works

Start the poolPop in the parents' names and, if you like, a rough due date and a note.
Everyone guessesGuests tap the share link, put in their name, a date, and a weight in kilograms (type "3.4" — it's stored to the gram under the hood), plus an optional cheeky message.
Record the arrivalWhen bub arrives, open your organiser link and enter the actual date and weight (and the time, if you're feeling thorough).

The longer version

Start the pool

Pop in the parents' names and, if you like, a rough due date and a note. You get two links: a share link for the group chat or the shower invite, and an organiser link that records the birth and can tidy up guesses. Bookmark the organiser one — there are no accounts, so the link is the only key.

Everyone guesses

Guests tap the share link, put in their name, a date, and a weight in kilograms (type "3.4" — it's stored to the gram under the hood), plus an optional cheeky message. No app, no login. Their browser remembers their own guesses so they can take one back if they change their mind.

Record the arrival

When bub arrives, open your organiser link and enter the actual date and weight (and the time, if you're feeling thorough). That closes guessing and reveals the leaderboard to everyone — winner up top, sorted by who came closest.

FAQ

How is the winner decided?

By a combined closeness score: one point per day off the real date, plus one point per 100 grams off the real weight. Lowest score wins, ties go to whoever guessed first. The rule is printed on the pool so it's all in the open.

Can I run it for a baby shower before the birth?

Absolutely — that's the classic use. Start the pool, share the link on the shower invite or in the group chat, and collect guesses for as long as you like. You only record the actual arrival weeks later, whenever bub decides to show up.

Does it handle prizes or money?

No, deliberately. It sorts out who guessed closest; if there's a prize, that stays between you and the group, same as always.

Can I use pounds instead of kilograms?

The pool runs in kilograms — the Australian default. If your guests think in pounds, they can convert (1 lb is about 0.45 kg) and enter the kilogram figure. The scoring works the same either way.

More about it

What's a baby guess pool?

It's the oldest baby-shower game there is, minus the paper slips. Everyone guesses two things — the day the baby arrives and how much they'll weigh — and once the little one turns up, whoever guessed closest wins. No prize required; the bragging rights carry the whole thing. Some people call it a baby pool, a baby sweepstake, or a guess-the-date game. Same idea, and this is the free online version.

How the winner is decided

The scoring is deliberately simple and shown right on the page, so nobody can accuse the organiser of fudging it. Each guess earns a closeness score:

One point for every day away from the actual arrival date.
One point for every 100 grams away from the actual weight.

Add them up; the lowest score wins. That means being 200 grams out counts about the same as being two days out — date and weight pull roughly equal weight, so you can't just spam a guess right on the due date and ignore the scales. If two guesses tie, the one made first takes it.

Wondering what's actually worth guessing, or what prize won't feel odd? The baby pool ideas page covers which categories are fun and which fall flat, how to settle it when two guesses are a day apart, whether the parents should play, and running one at a shower versus in the group chat over weeks.