---
title: "Colosseum vs St Peter's Basilica — size, weight and speed comp"
description: "St Peter's Basilica is 2.8× Colosseum on height. Compared on 3 measured properties, with the full range and a source for each."
url: https://atoneplace.net/vs/colosseum-vs-st-peters-basilica/
site: "At One Place"
---

# Colosseum vs St Peter's Basilica

**Colosseum vs St Peter's Basilica: St Peter's Basilica is larger on height**

St Peter's Basilica is 2.8× Colosseum on height.

Colosseum and St Peter's Basilica can be compared on 3 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 | St Peter's Basilica |
| --- | --- | --- |
| Height | 48 m | 136.6 m |
| Length | 189 m | 220 m |
| Area | 24,000 m² | 15,160 m² |

## What the numbers say

- St Peter's Basilica is 2.8× Colosseum on height.
- St Peter's Basilica is somewhat greater than Colosseum on length — about 1.2×.
- Colosseum is 1.6× St Peter's Basilica on area.

*Height compared.*

- St Peter's Basilica: 136.6 m
- Colosseum: 48 m

## Colosseum

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

## St Peter's Basilica

The Renaissance church at the centre of Vatican City, the largest church interior in the world.

> 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 St Peter's Basilica?

St Peter's Basilica is 2.8× Colosseum on height. Both figures are typical values; the full range for each is in the table above.

### How do Colosseums and St Peter's Basilicas compare on length?

Colosseum: 189 m. St Peter's Basilica: 220 m. St Peter's Basilica is somewhat greater than Colosseum on length — about 1.2×.

### How do Colosseums and St Peter's Basilicas compare on area?

Colosseum: 24,000 m². St Peter's Basilica: 15,160 m². Colosseum is 1.6× St Peter's Basilica on area.

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- [Colosseum vs Tower Bridge](https://atoneplace.net/vs/colosseum-vs-tower-bridge/)
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- [Colosseum vs Great Pyramid of Giza](https://atoneplace.net/vs/colosseum-vs-great-pyramid-of-giza/)
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- [Eiffel Tower vs St Peter's Basilica](https://atoneplace.net/vs/eiffel-tower-vs-st-peters-basilica/)
- [Great Pyramid of Giza vs St Peter's Basilica](https://atoneplace.net/vs/great-pyramid-of-giza-vs-st-peters-basilica/)

## Sources

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