Navy comparison: United Kingdom vs Portugal

United Kingdom's 58 warships outnumber Portugal's 26 (2.2:1 advantage). Counting auxiliaries, reserve and non-commissioned hulls, the fleets number 143 and 34.

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

United KingdomWorld #6 41.9

SEAS Index / 100

United Kingdom leads on 6 of 7 categories

PortugalWorld #37 12.9

2 Aircraft carriersweight ×200 · size, era 0
6 Destroyersweight ×50 · size, era 0
10 Submarinesweight ×45 · size, era 2
5 Frigatesweight ×30 · size, era 5
2 Amphibiousweight ×12 · size, era 0
7 Mine warfareweight ×5 · size, era 0
26 Patrol boatsweight ×2 · size, era 19
3 Support shipsnot scored 4
1 Other shipsnot scored 4

United Kingdom Portugal 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	Portugal	Ratio
Official name	Royal Navy	Portuguese Navy
Total ships	143	34	🇬🇧 4.2×
Active ships	62	34	🇬🇧 1.8×
On order / planned	23	12	🇬🇧 1.9×
Submarines	10	2	🇬🇧 5.0×
Principal surface combatants	11	5	🇬🇧 2.2×
Aircraft carriers	2	0	🇬🇧
Amphibious ships	2	0	🇬🇧