Civilization III
Combat Calculator ver3.0

  1. Enter the Strengths of Units involved (Attacker and Defender);
  2. Enter the Hit Points (or Experience Level - Elite 5 HP, Veteran 4 HP, Regular 3 HP etc.) for each unit;
  3. Enter the appropriate Attacker and Defender Modifiers;
  4. Click the "Calculate Odds" button or press "Enter" to display the odds of each potential outcome.
  5. Change any value and click "Calculate Odds" or press "Enter" to update the results.
Note: Results displayed may be subject to slight rounding error.
Attacker Defender


+100% (Mountain) +80% (Volcano) +50% (Hills, also with Towns/Cities)
+25% (Forest,Jungle) +20% (Marsh) +10% (Other, also with Towns/Cities)
0% (Air)

Attacker Wins Defender Wins
1-0 0-1
2-0 0-2
3-0 0-3
4-0 0-4
5-0 0-5
6-0 0-6
7-0 0-7
8-0 0-8
9-0 0-9
10-0 0-10
11-0 0-11
12-0 0-12
13-0 0-13
14-0 0-14
15-0 0-15