Skip to content
The War AtlasThe · War · Atlas

BATTLE // October 20, 1805

Battle of Ulm

LOADING MAP TELEMETRY…

Overview

The Battle of Ulm on 16–20 October 1805 was a series of skirmishes, at the end of the Ulm campaign, which allowed Napoleon I to trap an entire Austrian army under the command of Karl Freiherr Mack von Leiberich with minimal losses and to force its surrender near Ulm in the Electorate of Bavaria.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

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.

Forces & casualties

Troop strength

  • France80,000
    medium
  • Austria40,000
    medium

France fielded a 2.0 : 1 numerical advantage

Casualties

  • France1,500
    medium2% loss rate
  • Austria4,000
    medium10% loss rate

Commanders (4)

France

Compare with sibling battle

6 options

Pick a battle to compare side-by-side· same campaign

Related

6 sibling battles · 2 factions

Last verified May 2026
Cite this page →Suggest a correction →