Frequently asked questions
What is the half your age plus seven rule?
It's a popular rule of thumb for the widest socially-accepted age gap in a relationship. Take your age, divide by two, add seven — that's the youngest age considered acceptable. For the oldest, subtract seven from your age and double it.
Is this rule scientifically accurate?
No — it's a social rule of thumb that's been repeated for over a century, not a finding from relationship research. It's a reference point, not a verdict.
Does this calculator judge my relationship?
No. It just does the arithmetic for a well-known rule. Whether an age gap works has a lot more to do with the two people involved than a formula.