Navy comparison: 
Argentina vs 
United Kingdom
United Kingdom's 163-ship navy outnumbers Argentina's 44 vessels (3.7:1 advantage). Of these, 42 and 62 are in active service respectively.
SEAS (Sea Equipment Aggregate Strength) Index face-off Full ranking →
ArgentinaWorld #45
10.5
SEAS Index / 100
United Kingdom leads on 7 of 8 categories
United KingdomWorld #6
42.5
Argentina
United Kingdom
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
| Argentina | United Kingdom | Ratio | |
|---|---|---|---|
| Official name | Argentine Navy | Royal Navy | |
| Total ships | 44 | 163 | 🇬🇧 3.7× |
| Active ships | 42 | 62 | 🇬🇧 1.5× |
| On order / planned | 0 | 16 | 🇬🇧 |
| Submarines | 0 | 10 | 🇬🇧 |
| Principal surface combatants | 3 | 11 | 🇬🇧 3.7× |
| Aircraft carriers | 0 | 2 | 🇬🇧 |
| Amphibious ships | 1 | 2 | 🇬🇧 2.0× |
Show full breakdown · 4 more rowsHide the 4 extra rows
| Corvettes | 6 | 0 | 🇦🇷 |
| Patrol boats | 14 | 26 | 🇬🇧 1.9× |
| Mine warfare | 0 | 7 | 🇬🇧 |
| Auxiliaries | 18 | 4 | 🇦🇷 4.5× |
Backbone classes one per tier held
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Analyst Assessment
Verdict
Edge: United Kingdom
The Royal Navy holds a decisive and structural advantage over the Argentine Navy, fielding two Queen Elizabeth-class carriers, ten submarines including four Vanguard SSBNs, and eleven principal surface combatants against Argentina's three ageing Almirante Brown-class destroyers and six Espora-class corvettes. Argentina's fleet is a constabulary and coastal force with no submarines in service and no ships on order, while the United Kingdom sustains global basing and a 16-hull construction pipeline.
Domain by domain
Carriers & naval aviation
Edge: United Kingdom
🇦🇷 ArgentinaNo carriers or fixed-wing naval aviation. Argentina fields no organic sea-based air power; embarked helicopters on Almirante Brown-class destroyers and Espora-class corvettes provide only limited surface search and utility lift.
🇬🇧 United KingdomTwo Queen Elizabeth-class carriers, around 65,000 t each, operating F-35B and rotary assets. Weighted at ×200 in the index, they are the single largest contributor to the Royal Navy's composite score and its expeditionary reach.
Submarines
Edge: United Kingdom
🇦🇷 ArgentinaNo operational submarines. The undersea arm exists on paper only, leaving Argentina without a subsurface deterrent, covert ISR or anti-shipping capability in the South Atlantic.
🇬🇧 United KingdomTen boats: six Astute-class SSNs and four Vanguard-class SSBNs, with one further Astute and four Dreadnought-class SSBNs on order. All nuclear-powered, giving unlimited endurance and continuous at-sea deterrence.
Surface combatants
Edge: United Kingdom
🇦🇷 ArgentinaThree Almirante Brown-class destroyers (MEKO 360, 1980s vintage) and six Espora-class corvettes (MEKO 140), plus 14 patrol boats. Availability is constrained; the force is oriented to EEZ patrol and constabulary tasks.
🇬🇧 United KingdomEleven principal combatants: six Daring-class Type 45 destroyers with Sea Viper area air defence and five Duke-class Type 23 frigates optimised for ASW, backed by six Type 26 and three Type 31 frigates on order.
Bases & reach
Edge: United Kingdom
🇦🇷 ArgentinaThree home bases — Puerto Belgrano, Mar del Plata and Ushuaia — all on the national coast. Reach is regional, covering the South Atlantic EEZ and Antarctic resupply via the icebreaker Almirante Irízar.
🇬🇧 United KingdomNine bases spanning Clyde, Devonport, Portsmouth, Gibraltar, Bahrain, Duqm, Singapore and East Cove in the South Atlantic, supporting sustained deployment far from home waters.
Shipbuilding & sustainment
Edge: United Kingdom
🇦🇷 ArgentinaZero hulls on order or planned. The fleet is ageing without a funded recapitalisation programme; support is provided by 16 auxiliaries, and material readiness rather than hull count is the binding constraint.
🇬🇧 United KingdomSixteen units on order: six Type 26, three Type 31, four Dreadnought and one Astute submarine, plus two Thales USVs. A sustained domestic build pipeline supports fleet renewal through the 2030s.
Wildcards
- South Atlantic geography Argentina operates in its own littoral with short lines of communication; the United Kingdom must project from Europe, though East Cove Military Port provides a permanent regional foothold that shortens response times.
- Alliance and access The Royal Navy operates within NATO and benefits from allied logistics, intelligence and interoperability. Argentina has no comparable collective framework, limiting its options in any sustained maritime confrontation.
- Readiness over hull count The United Kingdom lists 154 total ships but only 60 active hulls; Argentina lists 44 with 42 active. Availability, crewing and maintenance backlogs shape what either navy can actually deploy.
Analysis generated by a language model from the figures on this page and public sources; it is an informed reading, not a military assessment or a prediction.
Frequently Asked Questions
Which country has more naval ships, Argentina or United Kingdom?
United Kingdom has a larger navy with 163 ships compared to Argentina's 44 ships.
Which navy has more submarines, Argentina or United Kingdom?
United Kingdom operates more submarines with 15 compared to Argentina's 2.
Which country has more aircraft carriers, Argentina or United Kingdom?
United Kingdom has 2 aircraft carrier(s) compared to Argentina's 0.
Which navy has more destroyers, Argentina or United Kingdom?
United Kingdom operates 6 destroyers compared to Argentina's 3.
Which navy has more frigates, Argentina or United Kingdom?
United Kingdom operates 18 frigates compared to Argentina's 0.
How do the Argentina and United Kingdom navies compare in size?
United Kingdom's navy is 3.7 times larger than Argentina's in terms of total ships (163 vs 44).