Appropriate age difference for dating formula

Unfortunately, I’m definitely not 21 any more, and 30 is, well, not that much older than me.

"It feels like it wasn't that long ago." When Leah, a national of Singapore, first got to know Travis, who was 10 years her junior, she was attracted to him, but "I tried to tell myself it wouldn't work because of the age difference.

An interesting fun dating age range calculator to find out minimum and maximum dating age of person whom you wish to date.

As per "Half Your Age Plus 7" relationship rule, the age of the younger person you date should not be less than half the age of the older person plus 7 years; and the age of the older person you date should not be more than your age minus 7 and doubled it.

With some quick math, the rule provides a minimum and maximum partner age based on your actual age that, if you choose to follow it, you can use to guide your dating decisions.

The utility of this equation is that it lets you chart acceptable age discrepancies that adjust over the years. Let's examine it: How well does the rule reflect scientific evidence for age preferences?