Original data study · CC BY 4.0
We analyzed 596 guesses. Your family is flipping a coin.
Grandma swears she knows. Your best friend is never wrong. We checked 596 real guesses from 100 online gender reveals against the actual outcomes. The folklore did not survive.
The findings
What 596 real guesses revealed
Every number below comes from anonymized votes on real reveals. No surveys, no estimates.
Guests barely beat a coin flip
Of 596 guesses on reveals with a verified outcome, only 325 were right.
correct — a coin lands right 50% of the time
Team Girl edges the vote
Across all 596 guesses, families lean pink before they know.
Online reveals out-attend living rooms
Median 41 voters, record 78 — roughly double a typical in-person party. 44% happen on weekends.
average voters per reveal
The crowd beats the individual
In reveals where at least 5 guests voted and a clear majority formed, the majority called it right 9 times out of 12. Small sample, flagged honestly, but your family is collectively smarter than any single member. Except that one aunt.
The calendar
The weekend is reveal day
Where 100 reveal dates landed across the week. The weekend owns 44% of all reveals, and Wednesday is when nothing happens.
Reveal moments cluster between mid-afternoon and evening — the most common scheduled hours were 15:00–18:00 and 21:00–00:00 UTC, where US afternoon and European evening overlap.
An odd quirk
of reveals in our sample announced a girl
72 girls to 27 boys across 99 completed reveals, while real-world births run roughly 51% boys. A self-selection quirk of who hosts online reveals, not biology. Guess accuracy was unaffected: 53.1% right when it was a boy, 55.6% when it was a girl.
By the numbers
Every stat in one place
| Guesses analyzed | 596 |
| Reveals in sample | 100 |
| Guesses on verified outcomes | 596 |
| Individual guess accuracy | 54.5% |
| Guesses that said "girl" | 52% |
| Guesses that said "boy" | 48% |
| Crowd majority record | 9 of 12 correct |
| Average voters per reveal | 45.8 |
| Median · record voters | 41 · 78 |
| Weekend reveals | 44% |
| Girl outcomes in sample | 72.7% |
How guess accuracy compares
Old wives’ tales (belly shape, cravings, heartbeat)
Random chance — tested repeatedly against birth records
Party guests (this study)
596 real guesses, verified outcomes
Crowd majority, 5+ votes (this study)
Small sample — an early signal, honestly labeled
Anatomy scan ultrasound (18–22 weeks)
Medical imaging
NIPT blood test (from 10 weeks)
Medical gold standard
The folklore methods your guests rely on have been tested against birth records many times. See our full breakdown of gender prediction myths vs science. Spoiler: only medicine beats the coin.
What it means
Three takeaways from the data
Individual intuition is folklore
Across 596 verifiable guesses, accuracy landed at 54.5% — within noise of a coin flip. Belly-shape theories, heartbeat myths and craving folklore, measured at scale, contribute nothing.
The crowd is smarter than its members
While individuals flip coins, the majority verdict went 9 for 12 in reveals with five or more votes. Small sample, flagged openly — but it matches what forecasting research finds everywhere: aggregation beats intuition.
Online reveals doubled the guest list
An average of 45.8 voting guests per reveal simply does not happen in a living room. Distance is why these parties moved online — the data shows the move worked.
For journalists & writers
Licensed CC BY 4.0 — free to cite with a link back
According to data from RevealTogether, which analyzed 596 guesses across 100 online gender reveals, guests correctly predict the baby's sex only 54.5% of the time — barely better than a coin flip.
Cite as
RevealTogether (2026), “Gender Reveal Statistics 2026.” https://www.revealtogether.com/gender-reveal-statistics
Need a custom cut of the data, a quote, or charts for your piece? team@revealtogether.com — we answer fast.
FAQ
Questions people ask about the data
How accurate are gender reveal guesses?+
Based on 596 guesses cast on reveals with a known outcome, guests picked the right answer 54.5% of the time — statistically almost identical to flipping a coin (50%). Neither "mother's intuition" proxies nor family knowledge appear to give guests a meaningful edge.
Do more people guess boy or girl at gender reveals?+
Girl, by a small margin. Across 596 guesses on RevealTogether, 52% of guests voted "girl" and 48% voted "boy". The Team Girl lean is consistent but slight.
Is the crowd majority usually right about the baby’s sex?+
In our sample it was: in 12 completed reveals where at least 5 guests voted and a clear majority formed, the majority was right 9 times out of 12. That is a small sample, so treat it as an early signal rather than a law — individual guessers, measured across 500+ guesses, do no better than chance.
How many people typically join an online gender reveal?+
In our data, an average online reveal gathers 45.8 voting guests (median 41). The most-attended reveal in the sample collected 78 votes — far more people than most in-person parties can host, which is the core reason families run reveals online.
When do most gender reveals happen?+
44% of the reveals in our sample were scheduled on a Saturday or Sunday. Saturday is the single most popular day, with 23 of 100 reveals (23%), followed closely by Sunday (21). Wednesday is the quietest day with just 7. Start times cluster in the afternoon-to-evening window, matching when extended families across time zones can realistically gather on their phones.
What is the most popular day of the week for a gender reveal?+
Saturday, with Sunday a close second. In our sample of 100 reveals, Saturday hosted 23 reveals (23%), just ahead of Sunday (21). The midweek trough lands on Wednesday (7 reveals). If your family spans time zones, a weekend afternoon slot is what most hosts converge on.
Are more reveal babies boys or girls?+
In our sample, strikingly more girls: 72 of the 99 completed reveals (72.7%) announced a girl, versus 27 boys. Real-world births run roughly 51% boys, so this is a self-selection quirk of who hosts online reveals — not biology. Our accuracy analysis is unaffected: guessers were equally mediocre for both sexes (53.1% right when it was a boy, 55.6% when it was a girl).
Where does this data come from?+
From anonymized, aggregated voting records on RevealTogether, a synchronized online gender reveal platform. We analyzed a sample of 100 reveals containing 596 guest votes. No names, emails, or identifying information were used — only vote counts and outcomes. Full methodology is described at the bottom of this page.
Methodology
How this study was built
Source: anonymized, aggregated voting records from online gender reveals hosted on RevealTogether between September 2025 and June 2026.
Sample: 100 reveals containing 596 guest votes. Internal test reveals were excluded before analysis.
Accuracy analysis uses only the 596 decisive (boy/girl) guesses cast on reveals whose actual outcome is recorded on the platform.
Crowd-majority analysis includes completed reveals with at least 5 decisive votes; ties excluded. The small sample size (12) is reported transparently.
No personally identifying information — names, emails, locations — was used at any point. Only vote counts, timestamps, and outcomes.
Known limitations: the sample skews toward families who host reveals online (see the 71% girl-outcome quirk above); day-of-week and hour figures reflect scheduled reveal times in UTC; crowd-majority analysis is directional until the sample grows.
Figures were last recomputed on July 20, 2026. The page is refreshed as new reveals complete — the dataset grows with every reveal hosted on the platform.
Keep reading
Guides that pair well with the data
Gender prediction myths vs science
Every old wives’ tale, tested against the evidence
Games30 gender reveal games and activities
Put your guests’ 54.5% accuracy to the test
BudgetWhat a gender reveal really costs
From $50 DIY to $1,500 premium, line by line
PlanningThe week-by-week reveal checklist
Everything to do from 8 weeks out to day-of
Put your family in the next dataset
Everyone votes boy or girl, then sees the answer at the exact same second, anywhere in the world. Let’s see if your crowd beats the 54.5%.
Create your revealJust $19.99 · No subscriptions, everyone watches live