Volume 008, Book 074, Hadith Number 246.
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Narated By Abu Huraira : The Prophet said, "Allah created Adam in his complete shape and form (directly), sixty cubits (about 30 meters) in height. When He created him, He said (to him), "Go and greet that group of angels sitting there, and listen what they will say in reply to you, for that will be your greeting and the greeting of your offspring." Adam (went and) said, 'As-Salamu alaikum (Peace be upon you).' They replied, 'AsSalamu-'Alaika wa Rahmatullah (Peace and Allah's Mercy be on you) So they increased 'Wa Rahmatullah' The Prophet added 'So whoever will enter Paradise, will be of the shape and form of Adam. Since then the creation of Adam's (offspring) (i.e. stature of human beings is being diminished continuously) to the present time."
Based On the information given in this hadith, I did some calculations, have a look at it.
As we already know that,
1 meter = 100 centimeter
12 inches = 1 feet
12 inches = 30 centimeter
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as 1 m = 100 cm
30 m =30x 100=3000 cm
as 30 cm =12 inches
1 cm = 12/30 inches
3000 cm = 12/30x3000=1200 inches
as 12 inches =1 foot
1 inch = 1/12 foot
1200 inches= 1/12x1200= 100 feet
well, 100 feet tall………so that means everybody in Jannah will be quite tall, ………I didn’t know that before.
(I hope I did the calculations right.)