---
title: "Colosseum vs Sydney Opera House — size, weight and speed compa"
description: "Sydney Opera House is somewhat greater than Colosseum on height — about 1.4×. Compared on 4 measured properties, with the full range and a source for each."
url: https://atoneplace.net/vs/colosseum-vs-sydney-opera-house/
site: "At One Place"
---

# Colosseum vs Sydney Opera House

**Colosseum vs Sydney Opera House: Sydney Opera House is larger on height**

Sydney Opera House is somewhat greater than Colosseum on height — about 1.4×.

Colosseum and Sydney Opera House can be compared on 4 measures. The figures below are typical adult or full-size values, with the larger of the two in bold.

## Side by side

*Larger value in bold. Ranges reflect genuine variation, not uncertainty.*

|  | Colosseum | Sydney Opera House |
| --- | --- | --- |
| Height | 48 m | 65 m |
| Length | 189 m | 183 m |
| Width | 156 m | 120 m |
| Area | 24,000 m² | 18,000 m² |

## What the numbers say

- Sydney Opera House is somewhat greater than Colosseum on height — about 1.4×.
- Colosseum and Sydney Opera House are near enough identical on length.
- Colosseum is somewhat greater than Sydney Opera House on width — about 1.3×.
- Colosseum is somewhat greater than Sydney Opera House on area — about 1.3×.

*Height compared.*

- Sydney Opera House: 65 m
- Colosseum: 48 m

## Colosseum

The largest amphitheatre ever built, completed in Rome in AD 80.

## Sydney Opera House

A multi-venue performing arts centre on Sydney Harbour, opened in 1973 and roofed with over a million tiles.

> This is a comparison of published measurements, nothing more. It describes how two things differ on measures that have been recorded; it does not predict how they would fare against each other in any situation.

## Common questions

### Which is bigger, Colosseum or Sydney Opera House?

Sydney Opera House is somewhat greater than Colosseum on height — about 1.4×. Both figures are typical values; the full range for each is in the table above.

### How do Colosseums and Sydney Opera Houses compare on length?

Colosseum: 189 m. Sydney Opera House: 183 m. Colosseum and Sydney Opera House are near enough identical on length.

### How do Colosseums and Sydney Opera Houses compare on width?

Colosseum: 156 m. Sydney Opera House: 120 m. Colosseum is somewhat greater than Sydney Opera House on width — about 1.3×.

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- [Arc de Triomphe vs Colosseum](https://atoneplace.net/vs/arc-de-triomphe-vs-colosseum/)
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- [Arc de Triomphe vs Sydney Opera House](https://atoneplace.net/vs/arc-de-triomphe-vs-sydney-opera-house/)

## Sources

- Wikidata — Wikimedia Foundation (https://www.wikidata.org/) [CC0 1.0]