Adam and Eve's exact height is not specified in the Bible. However, some theories and extra-biblical sources speculate that they could have been much taller than modern humans, with some suggesting heights around 15 feet. The Book of Enoch (not part of the Bible) and Islamic traditions propose Adam's height at about 15 feet and even up to 90 feet respectively. These ideas are based on the long lifespans recorded in Genesis and the presence of giant animals in the fossil record, but there is no concrete biblical evidence for their height. The Bible focuses more on their role in human origins and spiritual lessons rather than physical attributes.
In summary, while it is an interesting topic for speculation and various religious traditions offer different views, the Bible itself does not provide information on how tall Adam and Eve were.