In total, there are 1,665 steps leading from the base square of the Eiffel Tower to the summit. However, please note that the stairs from the 2nd floor to the top are not accessible to the general public. If you're up for the challenge, you can tackle the 674 steps from the base to the 2nd floor, which typically takes between 30 to 45 minutes to ascend, depending on your fitness level.