This formula will help you predict your child’s height…

The decades-old formula has become quite popular… what does it say for you?


Wouldn’t it be nice to see into the future and find out what our kids will be like when they’re older, eh?


What will they look like? How will their personalities change? Will they grow taller than me?

Well, we don’t have a crystal ball lying around in the office, but we can do some scientifically-approved guessing with this height-predicting formula that’s resurfaced…


The formula

For a girl, you take each parent’s height (in centimetres), add those 2 numbers, and divide that number by 2.

Take away 6.5cm from the number you’ve got left and hey presto – you have what’s called the ‘mid-parental height’.

The formula for a boy is the same – except you add 6.5cm rather than subtract them.

It should also be noted that the number you’re left with isn’t the definite height prediction, and their true height may fall within 10cm on either side of the mid-parental height.


So where did it come from?

Many sources are reporting that The New York Times wrote that this formula has actually been around since researchers created it in the 1970s.

It’s basically a way of predicting how big your little one will grow up to be using an average of mum’s and dad’s heights. 

The Telegraph reports that your genes usually count for around 70% of your height, and things like nutrition and environmental factors also have an impact. 

So it’s worth keeping in mind that this formula isn’t magic and there’ll always be exceptions to the rule. But it’s a pretty fun thing to try out regardless, right?

For the record, we’ve just done it using our own parent’s heights (since we’re fully grown, obvs) and it worked for us ?

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