1651 centimeters is equivalent to 648.82 inches.
To put this into context, here are some comparisons to known objects of similar size:
1. 1651 centimeters is roughly the height of an average adult giraffe.
2. It is also about the same height as a standard basketball hoop.
3. 1651 centimeters is slightly taller than the average up-and-down stroke of the Empire State Building in New York City (which is 1,454 feet or 442 meters).
4. In terms of length, 1651 centimeters is nearly the length of three standard school buses lined up end to end.
5. It is also approximately the length of a school classroom, from the front of the room to the back.
6. 1651 centimeters is about twice the length of an average adult human, standing side by side.
7. It is also slightly longer than the wingspan of a bald eagle, which can reach up to 7 feet (213 centimeters).
Looking at these comparisons, it is clear that 1651 centimeters is a fairly large measurement, comparable to the size of tall animals and buildings.