Age Gap Calculator
Enter your age to see the dating range the half-plus-seven rule suggests. The rule is a rough social guideline, not a law, but it is a useful starting point for a reasonable age filter.
Socially typical dating range
22 to 46
By the half-plus-seven rule, a 30 year old is commonly seen dating people from about 22 to 46. It is a guideline, not a rule.
How the half-plus-seven rule works
The rule sets a youngest acceptable partner age at half your age plus seven, and an oldest at your age minus seven, doubled. For a 30 year old that gives a range of about 22 to 46. The band widens as you get older, which is why the rule feels stricter at younger ages.
The rule is a norm, not a verdict. It exists to flag age gaps that many people would consider too large, and it breaks down below about 18, where legal and ethical limits apply instead.
What an age filter does to your pool
Age is a strong filter because it interacts with the single population. The never-married share falls sharply from the twenties into the forties, so a narrow age band aimed at younger adults captures more single people per capita, while a wider band captures more people overall. To see how your age range combines with height and income, use the female delusion calculator or male delusion calculator, and read the single ratio by age.
Frequently asked questions
What is the half-plus-seven rule?
The half-plus-seven rule sets the youngest socially acceptable partner age at half your age plus seven. The oldest is found by reversing it: subtract seven from your age and double the result.
Is the half-plus-seven rule accurate?
It is a social guideline, not a scientific standard. It captures what many people consider a reasonable gap, but individual comfort with age differences varies widely.
What is a socially acceptable age gap?
Most people accept a few years in either direction without comment, and the accepted band widens with age. The half-plus-seven rule gives a common rule-of-thumb range.
Does a bigger age range grow my dating pool?
Yes, up to a point. Widening the band adds more people, but the extra years often have a lower single share, so each added year helps less than the last.
Which age range gives the biggest dating pool?
For most searchers a band centered on the late twenties to thirties balances a large cohort with a high single share. The exact best range depends on your own age.
Does the rule apply below age 18?
No. The half-plus-seven rule breaks down below about 18, where legal and ethical limits govern instead, so treat those results as not applicable.