Navy comparison: Japan vs Russia

Russia's 279 warships outnumber Japan's 103 (2.7:1 advantage). Counting auxiliaries, reserve and non-commissioned hulls, the fleets number 158 and 475.

SEAS (Sea Equipment Aggregate Strength) Index face-off Full ranking →

JapanWorld #4 50.7

SEAS Index / 100

Russia leads on 7 of 10 categories

RussiaWorld #3 71.2

4 Aircraft carriersweight ×200 · size, era 0
0 Cruisersweight ×80 · size, era 2
40 Destroyersweight ×50 · size, era 6
22 Submarinesweight ×45 · size, era 56
10 Frigatesweight ×30 · size, era 12
0 Corvettesweight ×15 · size, era 63
3 Amphibiousweight ×12 · size, era 17
18 Mine warfareweight ×5 · size, era 43
6 Patrol boatsweight ×2 · size, era 64
0 Coastal boatsweight ×1 · size, era 16
11 Support shipsnot scored 111
0 Cargo shipsnot scored 5
44 Other shipsnot scored 61

Japan Russia Bars: weighted contribution to the SEAS Index (hulls × category weight × size, era and propulsion factors, minor vessels capped at 30 % of the combatant points; the air-wing, sustainment, armament and availability multipliers apply on top) · figures: active hulls at each side's latest inventory year · Methodology

Key figures as of 2026

	Japan	Russia	Ratio
Official name	Japan Maritime Self-Defense Force	Russian Navy
Total ships	158	475	🇷🇺 3.0×
Active ships	158	456	🇷🇺 2.9×
On order / planned	19	73	🇷🇺 3.8×
Submarines	22	56	🇷🇺 2.5×
Principal surface combatants	50	20	🇯🇵 2.5×
Aircraft carriers	4	0	🇯🇵
Amphibious ships	3	17	🇷🇺 5.7×