Navy comparison: Belgium vs United Kingdom

United Kingdom's 58 warships outnumber Belgium's 9 (6.4:1 advantage). Counting auxiliaries, reserve and non-commissioned hulls, the fleets number 9 and 143.

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

BelgiumWorld #56 6.9

SEAS Index / 100

United Kingdom leads on 7 of 7 categories

United KingdomWorld #6 41.9

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

Belgium 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

	Belgium	United Kingdom	Ratio
Official name	Belgian Navy	Royal Navy
Total ships	9	143	🇬🇧 16×
Active ships	9	62	🇬🇧 6.9×
On order / planned	8	23	🇬🇧 2.9×
Submarines	0	10	🇬🇧
Principal surface combatants	2	11	🇬🇧 5.5×
Aircraft carriers	0	2	🇬🇧
Amphibious ships	0	2	🇬🇧