A lot of boys want to know if there is any way that they can tell exactly how tall they will be when they are grown up. Unfortunately, there isn’t, but there are some clues that may help you make a rough guess. How tall you are usually has to do with your family. If both your parents are tall, chances are you will be too. If both your parents are short, you will probably be short. This is not a hard and fast rule, though – there are lots and lots of exceptions.
The tallest man who ever lived was 2.7 m (8 ft 11 in) tall, and the shortest was only 674 mm
(26 ½ in). But these were unusual cases; 95 out of 100 men will be between 1.62 and 1.87 m (5 ft 4 in-6 ft 2 in) tall. The average is 1.75 m (5 ft 9 in) tall.
By the way, don’t make the mistake of thinking that boys who are on the short side before puberty will be shorter than other men when they reach their adult height. It is true that many boys who are short before puberty are short as adults, but this is not always the case. As one man said:
When I was 13, I was the second-to-the-shortest person in the class, but over the summer I shot up. By the time school started in the autumn, I was just about the tallest boy in the class.
John,age 26
No one can say for sure which boys will end up being taller than average and which ones will end up being shorter than average – or, for that matter, which ones will end up being about average. But we do know that by the age of 10 the average boy will have grown to 78 per cent of his adult height and that by the age of 14 the average boy will have grown to 91.5 per cent of his adult height. (Per cent means ‘part of a hundred’. A boy who reached his full height would have reached 100 per cent of his adult height. A boy who had reached half his full height would have reached 50 per cent of his adult height.)
*18\95\2*
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