Navy comparison: United Kingdom vs Greece

United Kingdom operates 58 warships compared to 69 for Greece. Counting auxiliaries, reserve and non-commissioned hulls, the fleets number 143 and 141.

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

United KingdomWorld #6 41.6

SEAS Index / 100

United Kingdom leads on 5 of 8 categories

GreeceWorld #19 20.2

2 Aircraft carriersweight ×200 · size, era 0
6 Destroyersweight ×50 · size, era 0
10 Submarinesweight ×45 · size, era 8
5 Frigatesweight ×30 · size, era 13
2 Amphibiousweight ×12 · size, era 7
7 Mine warfareweight ×5 · size, era 2
26 Patrol boatsweight ×2 · size, era 6
0 Coastal boatsweight ×1 · size, era 33
3 Support shipsnot scored 32
0 Cargo shipsnot scored 8
1 Other shipsnot scored 32

United Kingdom Greece 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

	United Kingdom	Greece	Ratio
Official name	Royal Navy	Hellenic Navy
Total ships	143	141	🇬🇧 ≈
Active ships	62	141	🇬🇷 2.3×
On order / planned	23	5	🇬🇧 4.6×
Submarines	10	8	🇬🇧 1.2×
Principal surface combatants	11	13	🇬🇷 1.2×
Aircraft carriers	2	0	🇬🇧
Amphibious ships	2	7	🇬🇷 3.5×