CASUALTY RECORD // October 20, 1805
Battle of Ulm
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 5,500 estimated
France
1,500
Medium-confidence figure
Austria
4,000
Medium-confidence figure
Battle context
The Battle of Ulm concluded a campaign in which Napoleon trapped an entire Austrian army under Karl Mack von Leiberich and forced its surrender with minimal French losses. With an Austrian force of roughly 40,000 facing 80,000 French troops, the encirclement produced approximately 4,000 Austrian casualties against only 1,500 French, and delivered the whole army as a strategic prize. The capitulation removed a principal Austrian field force from the Napoleonic Wars at an early stage of the 1805 campaign, opening the road into the Austrian heartland and fundamentally altering the balance of forces before further operations could develop.
‹ Full battle dossierSources (16)
Monograph
The Napoleonic Source Book
Monograph