即然天地同宽，我们可以轻易得知天(宇宙)的宽度，因为地球的直径是12,742 公里。那么宽度有了，高度呢？层与层之间的距离又是多少呢？穆罕默德沒有清楚说明七层地的深度，但我们的地球从地表到地心仅有6356公里。有许多圣训讲述从地表到天堂的距离(高度)，有500年距离之说，也有71至73年距离之说，如以下的艾布.达吾德圣训(Sunan Abi Dawud)：
Narrated Al-Abbas ibn AbdulMuttalib:
I was sitting in al-Batha with a company among whom the Messenger of Allah (ﷺ) was sitting, when a cloud passed above them.
The Messenger of Allah (ﷺ) looked at it and said: What do you call this? They said: Sahab.
He said: And muzn? They said: And muzn. He said: And anan? They said: And anan. AbuDawud said: I am not quite confident about the word anan. He asked: Do you know the distance between Heaven and Earth? They replied: We do not know. He then said: The distance between them is seventy-one, seventy-two, or seventy-three years. The heaven which is above it is at a similar distance (going on till he counted seven heavens). Above the seventh heaven there is a sea, the distance between whose surface and bottom is like that between one heaven and the next. Above that there are eight mountain goats the distance between whose hoofs and haunches is like the distance between one heaven and the next. Then Allah, the Blessed and the Exalted, is above that.
(English translation : Book 41, Hadith 4705)