Deepest-diving submarines
26 of the 35 submarines in the WeaponSpecs database publish a test depth figure, and the top 25 are listed here. Ranked on the published number alone, highest first, with no weighting and no composite score. The 9 submarines with no published figure are not ranked, absent data is never treated as a low value.
| # | System | Test depth | Source |
|---|---|---|---|
| 1 | Dive-XL | 6,000 m | reference ↗ checked 2026-07-16 |
| 2 | Yasen-class † | 600 m | reference ↗ checked 2026-07-02 |
| 3 | Chang Bogo-class submarine | 500 m | reference ↗ checked 2026-07-02 |
| 4 | Borei-class † | 480 m | reference ↗ checked 2026-07-02 |
| 5 | Akula-class (Project 971) † | 480 m | reference ↗ checked 2026-07-02 |
| 6 | Arihant class | 450 m | reference ↗ checked 2026-07-02 |
| 7 | Triomphant class | 400 m | reference ↗ checked 2026-07-02 |
| 8 | Reis-class | 400 m | reference ↗ checked 2026-07-02 |
| 9 | Type 214 | 400 m | reference ↗ checked 2026-07-02 |
| 10 | Suffren class | 350 m | reference ↗ checked 2026-07-02 |
| 11 | Walrus class | 300 m | reference ↗ checked 2026-07-02 |
| 12 | Astute class | 300 m | reference ↗ checked 2026-07-02 |
| 13 | Scorpene class | 300 m | reference ↗ checked 2026-07-02 |
| 14 | Kilo-class (Project 636.3) † | 300 m | reference ↗ checked 2026-07-02 |
| 15 | S-80 Plus | 300 m | reference ↗ checked 2026-07-02 |
| 16 | Type 093 Shang † | 300 m | reference ↗ checked 2026-07-02 |
| 17 | Type 094 Jin † | 300 m | reference ↗ checked 2026-07-02 |
| 18 | Type 039A/B Yuan † | 300 m | reference ↗ checked 2026-07-02 |
| 19 | Los Angeles-class Submarine | 290 m | reference ↗ checked 2026-07-02 |
| 20 | Salvatore Todaro class (U212A) | 250 m | reference ↗ checked 2026-07-02 |
| 21 | Type 209 | 250 m | reference ↗ checked 2026-07-02 |
| 22 | Type 212A | 250 m | reference ↗ checked 2026-07-02 |
| 23 | Virginia-class Submarine | 240 m | reference ↗ checked 2026-07-02 |
| 24 | Ohio-class Submarine | 240 m | reference ↗ checked 2026-07-02 |
| 25 | A26 Blekinge-class | 200 m | reference ↗ checked 2026-07-02 |
Compiled from public manufacturer, defense-ministry and reference sources. Published defense figures are approximations and are often stated under different conditions, so treat this ordering as directional rather than a tested result. A board is only generated where at least 5 systems in the class publish the figure. How we compile specs →
Other submarines rankings