Countries with the Largest Active Submarine Fleets 2025
About This Dataset
Countries with the Largest Active Submarine Fleets 2025
Countries ranked by the number of active military submarines in service in 2025 according to Global Firepower and IISS Military Balance data. The United States and Russia operate the world's largest submarine forces, though China has been rapidly expanding its submarine fleet as part of broader naval modernisation. AI-assisted data.
Analysis
China heads the table on 79, ahead of United States (68) and Russia (64) in Active Military Submarines in 2025. 61 separates the highest figure (79) from the lowest (18). First and second are separated by 11, so the leader sits inside the field rather than apart from it. Only 3 of the 8 reach even half the leader's figure (39.5 or more).
Source:
Global Firepower
Key Findings
🏆
China leads in Active Military Submarines with 79 in 2025.
📊
Average Active Military Submarines in 2025: 42 · median: 33.
↔️
Gap in 2025: China is 4.4× larger than India.
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- Global Firepower
- Coverage
- 8 entities · 2025 · 8 observations
- Measure
- Active Military Submarines
- Last updated
- 6 September 2026
- Compiled by
- The ANYSTAT team, from the source above
How the figures are calculated
- Values are shown as reported by the source. Nothing is rescaled, rebased or converted — the only changes are thousand separators and decimals shown to two places.
- Entities are ranked highest-first on their value in 2025.
Data Sources & References
All external sources cited in this dataset
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