Just for fun: a lighthearted social rule of thumb, not legal, medical, or dating advice. Local age-of-consent laws always come first.
About this tool
This calculator applies the popular "half your age plus seven" rule of thumb to estimate a socially acceptable dating age range for a given age. It is a lighthearted cultural guideline, not a scientific, medical, or legal standard, and it is meant purely for fun.
The math is simple. The youngest end of the range is half your age plus seven: minimum = floor(age ÷ 2) + 7. The oldest end reverses that rule: maximum = (age − 7) × 2. For example, at age 30 the range is 22 to 46. The rule only makes sense from about 14 upward — below that the two formulas cross over and the range stops being meaningful, so the tool shows a note instead of a range.
Enter an age and the youngest and oldest values update instantly. Everything is computed in your browser, so no ages or personal details are sent anywhere.
Frequently asked questions
What is the half-your-age-plus-seven rule?
It is a well-known social guideline suggesting the youngest person you might date is half your age plus seven, with the upper bound being the mirror of that. It has no scientific basis and is used mostly as a casual reference point.
How are the numbers calculated?
Minimum age = floor(your age ÷ 2) + 7, and maximum age = (your age − 7) × 2. Both ends are rounded to whole years for display.
Why does it refuse very young ages?
Below roughly 14 the minimum and maximum formulas cross, producing a range where the maximum is lower than the minimum. The rule simply breaks down there, so the tool shows a note rather than a nonsensical range.
Is this legal or dating advice?
No. It is a lighthearted rule of thumb for entertainment only. Age-of-consent and relationship laws vary by place and always take precedence over any informal rule.