Where does your relationship sit in the data?

One to two years, with the man slightly older, is the commonest gap in US heterosexual relationships. Same-sex couples run smaller gaps on average. Half your age plus seven has no statistical grounding whatsoever, though a 2015 Emory University study by Francis-Tan and Mialon in Economic Inquiry did find divorce risk climbing with the gap, up 18% at five years and 39% at ten, controlling for other factors. The age gap calculator shows where your own gap sits in the population distribution and what the divorce-rate research says about it.

There isn't a reliable national median for relationships outside marriage, because surveys draw the line around a relationship differently. Marriage is better measured. Divorce risk is highest in the early years, and first marriages that end in divorce last about 8 years on average in Census Bureau data. Try the relationship longevity calculator for your own cohort, or the relationship timeline calculator to line your milestones up against the averages.

Within the first few months for most couples, and the gender split is the part people get wrong. Ackerman, Griskevicius and Li (2011, Journal of Personality and Social Psychology) found that people expect women to say it first, but it's usually men who do, and men feel happier when they hear it. Ackerman's team reads that through an evolutionary-economics lens, where a declaration of love signals commitment. The ILY timeline calculator compares yours to the population distribution by gender and age.

Now 30.2 for men and 28.6 for women in the US, on Census 2024 data, up from 26.1 and 23.9 in 1990 and from 22.8 and 20.3 in 1950. Later college completion, longer career-launch timelines and the fact that most couples now live together before marrying all pull in the same direction. UK marriages come later still, with ONS putting the median age at marriage in England and Wales at 34.8 for men and 33.0 for women in 2023, though that figure includes remarriages. Education is one of the strongest single predictors, with graduates marrying roughly 2 to 3 years later than non-graduates, and race, region and income add more spread on top of that. Our relationship timeline calculator puts your engagement and marriage timing against the modern distribution rather than the benchmark most people carry in their heads.

No reliable national figure exists, and frequency on its own turns out to predict very little. What does predict outcomes is the ratio of positive to negative moments during the argument itself, and John Gottman's longitudinal work found stable couples holding a 5-to-1 ratio while couples heading for divorce drop below 1-to-1. His Four Horsemen, criticism and contempt and defensiveness and stonewalling, predicted divorce with over 90% accuracy in early-marriage interaction studies. Our argument frequency calculator places your weekly count in the population distribution and explains the Gottman context.

There's no solid national median. The figures that circulate come from dating-app and Match.com surveys, which sample app users and shift from year to year, so treat any single number of dates as a rough guide rather than a norm. Plenty of couples drift into exclusivity without ever having an explicit conversation about it. See the dates before exclusive calculator for the distribution by age and meeting route, and lifetime loves for how many serious relationships people tend to have.

About 39% of heterosexual couples who met in 2017, up from 2% in 1995, on the Stanford How Couples Meet and Stay Together survey analysed by Rosenfeld, Thomas and Hausen (2019, PNAS). Online dating overtook meeting through friends as the commonest origin story around 2013 and has kept climbing, while religious institutions, school, work and family have all fallen away. Same-sex couples got there earlier, as the same paper notes. What has really changed is the mechanism, algorithm-led discovery in place of community-led introduction, which makes your effective pool larger than it has ever been and the filtering considerably stranger. Use the dating pool calculator to size the pool matching your demographic and geographic criteria, and the age gap calculator for the partners you are actually matching with.