# Acceptable dating age range formula math

### "age / 2 + 7" formula is flawed - xkcd

The problem is that both the equation "y = x", which just maps age over time, and "y = x / 2 + 7", the dating-range formula, are each I think the flaws start well out of what normal human lifespan is.. like, around or so. .. with that the equation is flawed *in a strict, mathematical sense(, not that there are. One commonly-applied formula is the "half your age plus seven" rule, in which referring to the physical ability to have children or the socially acceptable age. What is the acceptable minimum age for your own (and others') dating partners? quick math, the rule provides a minimum and maximum partner age based on your black line represents the rule's calculation for minimum acceptable range.

It may predate O'Rell, as he presents it not as his own invention but as a very good piece of advice that he "heard the other day. Never marry a woman richer than you, or one taller than you, or one older than you.

Be always gently superior to your wife in fortune, in size, and in age, so that in every possible way she may appeal to you for help or protection, either through your purse, your strength, or your experience of life. Marry her at an age that will always enable you to play with her all the different characteristic parts of a husband, a chum, a lover, an adviser, a protector, and just a tiny suspicion of a father.

Discussed a lot when Colonel Brandon falls in love with Marianne Dashwood. He is 35 and she is 17, and she thinks that he's old enough to be her father.

## File:Half-age-plus-seven-relationship-rule.svg

Her sister Elinor thinks that it is a significant gap, but says a woman of 27 and a man of 35 might be quite happy together. Near the end of the novel, Colonel is still very much in love with her, and the narrator says he had "little to do but to calculate the disproportion between thirty-six and seventeen". But thirty-five has nothing to do with matrimony.

Perhaps thirty-five and seventeen had better not have any thing to do with matrimony together. But if there should by any chance happen to be a woman who is single at seven and twenty, I should not think Colonel Brandon's being thirty-five any objection to his marrying HER.

### What's the acceptable age difference in a relationship?

Tom quotes the half-your-age-plus-seven rule, which in Andy's case would be 21 and a half, causing Andy some consternation when he realizes this technically puts the year-old April in the "too young" range.

He gets over it. It helps the audience that the age gap between the actors is only five years instead of eight and that Andy's mental age at best is around In FriendsJoey apparently gets his algebra mixed up, making the age gap sounds even worse than it is: Yeah, come on, think about it.

You're 18, okay, she's When you're 36, she's gonna be Megan notes that graph-making nerds like Cueball may have a hard time finding dates, but this is refuted by the title text.

Transcript[ edit ] [Megan is sitting on the ground with her elbows on her knees and her hands on her chin. The median first marriage age is The pools of singles is shrinking. I'm running out of time. Yes, older singles are rarer. But as you get older, the dateable age range gets wider.

An year-old's range is 16—22, whereas a year-old's might be more like 22— I did some analysis of this with the Census Bureau numbers just last weekend. Your dating pool actually grows until middle age. So don't fret so much! The second graph is labelled Dating Pool, and is a bell curve.

Did your analysis say anything about the dating prospects of people who spend weekends at home making graphs? Somewhere at the edge of the bell curve is the girl for me.