527 m
Scale anchored to a reviewed measurement
Uniform scaling uses the verified full-tip height; architectural massing remains intrinsic.
Willis Tower
Willis Tower is shown in its current state with both permanent antennas. Because those antennas are visible, the complete contour is scaled to the verified 527 m tip height; its 442.1 m architectural height is listed separately.
Dimensions
- Height
- 527 m
Quick facts
- Height to tip
- 527 m
- Architectural height
- 442.1 m
- Floors
- 110
Willis Tower · Size infographic
Related objects
Sources and measurement33 References
Dimensions were cross-checked against independent sources before publication.
Measurement basis
The full-tip anchor includes permanent antennas; the architectural-height fact excludes them.