48.5 m
187.75 m
Scale anchored to a reviewed measurement
Uniform scaling uses one documented measurement; the visual contour is never deformed to fit a second axis.
Colosseum
The Colosseum is the largest amphitheatre of the Roman world. This page depicts the monument in its present partially ruined state: the historic elliptical perimeter measures about 187.75 by 155.6 m, while the preserved northern sector reaches 48.5 m.
Dimensions
- Height
- 48.5 m
- Length
- 188 m
- Width
- 156 m
What do these numbers mean?
A height of 48.5 m is about 16 storeys at 3 m each.
Calculation
48.5 m ÷ 3 m = 16.17 ≈ 16
The base area is about 29,000 m².
Calculation
188 m × 156 m = 29,328 m²
That is about 4.1 football fields measuring 105 m × 68 m.
Calculation
29,328 m² ÷ (105 m × 68 m) = 4.11 ≈ 4.1
Quick facts
- Maximum preserved height
- 48.5 m
- Major axis
- 187.75 m
- Minor axis
- 155.6 m
Colosseum · Size infographic

Related objects
Sources and measurement44 References
Dimensions were cross-checked against independent sources before publication.
Measurement basis
The present-day ruined elevation is scaled uniformly from the maximum preserved height of 48.5 m; its natural width is not stretched to the historic diameter because exterior rings are missing. The top view shows the incomplete surviving rings inside the full 187.75 × 155.6 m historic ellipse.