Would a much more decisive British victory at Jutland end the First World War earlier?
Short answerPossibly, but only if German naval losses let Britain operate into the Baltic and further tighten Germany's access to trade and Swedish iron ore; otherwise the war could still follow a submarine-war path.
NotesA tactical victory would not automatically end the war. If the German fleet remained strong enough to defend the Baltic, the submarine war and a broadly familiar course of the conflict could continue. Heavy officer and crew losses would nevertheless make it harder for Germany to expand the U-boat arm, while Britain's larger maritime infrastructure could replace a smaller percentage loss more quickly. If the High Seas Fleet were shattered, Britain could challenge Baltic access and threaten Germany's trade routes and Swedish iron ore supply. The wider outcome depends on the battle's actual damage and on which senior officers survive.