Largest Church Buildings by Interior Volume

Source: Wikipedia - List of largest church buildings

Largest Church Buildings by Interior Volume

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Key Findings

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St. Peter's Basilica leads in Gross interior volume (cubic metres) with 1,600,000.

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Average Gross interior volume (cubic metres): 527,932 · median: 423,500.

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Gap: St. Peter's Basilica is 7.8× larger than Seville Cathedral.

About This Dataset

Largest Church Buildings by Interior Volume

Floor area ignores height, which is what makes a cathedral feel vast from the inside. This chart ranks the largest church buildings by gross interior volume in cubic metres, a measure that rewards tall naves and high domes as much as wide floors.

Analysis

St. Peter's Basilica encloses 1,600,000 cubic metres, 1.33 times the 1,200,000 of Cathedral Basilica of Our Lady Aparecida. Volume and floor area do not always agree: the largest church by interior area is St. Peter's Basilica, and a building with a smaller footprint can hold more air if its vaults are higher. The 12 churches shown enclose 6,335,181 cubic metres in total. The smallest volume here, Seville Cathedral, is 205,524 cubic metres - still larger than most concert halls.

Data Insights Below

Data Insights

Numbers, trends & sources behind this chart

Admin

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Data Points

12 categories · 1 year

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Top Value

1,600,000

St. Peter's Basilica

Gross interior volume (cubic metres) · All Time

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Metrics

Gross interior volume (cubic metres)

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Period

All Time

Single year snapshot

Methodology & source

Data source: Wikipedia - List of largest church buildings
Coverage: 12 entities · 12 observations
Measure: Gross interior volume (cubic metres)
Last updated: 10 September 2026
Compiled by: The ANYSTAT team, from the source above

How the figures are calculated

Values use the measure and unit named on this page. Consult the dataset description and cited source for coverage, definitions and any unit conversions. Displayed values may be rounded for readability.
Entities are ranked highest-first on their value.

Rankings & Full Data

12 records · Gross interior volume (cubic metres) · ranked by All Time

✓ 12 sourced

#	Category	All Time
🥇	St. Peter's Basilica	1,600,000
🥈	Cathedral Basilica of Our Lady Aparecida	1,200,000
🥉	Cathedral of St. John the Divine	480,000
4	People's Salvation Cathedral	478,857
5	Liverpool Cathedral	450,000
6	Milan Cathedral	440,000
7	Cologne Cathedral	407,000
8	Basilica of Our Lady of Licheń	300,000
9	Saint Isaac's Cathedral	260,000
10	San Petronio Basilica	258,000
11	Hagia Sophia	255,800
12	Seville Cathedral	205,524

Data Sources & References

All external sources cited in this dataset

1 https://en.wikipedia.org/wiki/List_of_largest_church_buildings Visit ↗

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APA

ANYSTAT. (2026). Largest Church Buildings by Interior Volume [Data set]. Data: Wikipedia - List of largest church buildings. https://anystat.ai/stats/1725/largest-church-buildings-by-interior-volume-1788986646

MLA

"Largest Church Buildings by Interior Volume." ANYSTAT, 10 Sep. 2026, https://anystat.ai/stats/1725/largest-church-buildings-by-interior-volume-1788986646.

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<a href="https://anystat.ai/stats/1725/largest-church-buildings-by-interior-volume-1788986646">Largest Church Buildings by Interior Volume</a> (ANYSTAT)

Largest Church Buildings by Interior Volume