Battle Setup
Example Data Table
This sample shows a balanced land attack with air support and one defensive AA gun.
| Side | Infantry | Artillery | Tanks | Fighters | Bombers | AA Guns | Estimated Purpose |
|---|---|---|---|---|---|---|---|
| Attacker | 6 | 2 | 3 | 2 | 1 | 0 | Strong attack with supported infantry. |
| Defender | 5 | 1 | 2 | 1 | 0 | 1 | Solid defense with air threat control. |
| Option | Use 3,000 simulations, AA fire enabled, and low value casualties first. | ||||||
Formula Used
The calculator uses repeated dice trials. Each unit rolls one six-sided die during its combat step. A hit occurs when the die result is less than or equal to the unit combat value.
Basic hit probability is:
Expected hits = Unit count × Combat value ÷ 6
Supported attacking infantry are handled with artillery support:
Supported infantry hits = Supported infantry × 2 ÷ 6
Battle odds are estimated as:
Win rate = Winning simulations ÷ Total simulations × 100
IPC swing is estimated as:
Defender average IPC loss − Attacker average IPC loss
How to Use This Calculator
- Enter attacking units in the attacking force section.
- Enter defending units in the defending force section.
- Set simulation count for faster or deeper estimates.
- Choose casualty plans for both sides.
- Enable AA fire, bombardment, or submarine surprise rules if needed.
- Click the calculate button.
- Review win odds, average rounds, IPC swing, and survivors.
- Download the result as CSV or PDF.
Advanced Axis and Allies Battle Planning
Why Odds Matter
Axis and Allies battles can look simple at first. Yet one attack may decide an entire front. A small change in infantry, air support, or artillery can shift the result. Good players do not only count units. They compare expected hits, remaining value, and position after the fight.
Reading the Main Result
The attacker win chance shows how often the attacking force clears the defender. The defender win chance shows how often the territory or sea zone holds. A draw means both forces may be destroyed or the battle reached the round limit. Average rounds help you judge how long the fight usually lasts. Long battles create more return fire, so they often punish expensive units.
Using IPC Swing
IPC swing is a value measure. A positive swing means the defender loses more value than the attacker. A negative swing means the attack may be too expensive, even when it wins. This is important in trading territories. Sometimes a low cost attack is better than a flashy attack. Preserving tanks, fighters, and bombers can matter more than taking one space.
Important Rule Options
Artillery support improves attacking infantry. AA fire can remove air units before the first normal combat round. Submarine surprise fire can change naval fights when no enemy destroyer cancels it. Bombardment adds opening fire from cruisers and battleships in supported landings. These options should match your table rules or house rules.
Better Strategic Choices
Run several versions of the same battle. Add one infantry. Remove one fighter. Try a retreat setting. Compare win rate and average IPC loss. This makes the calculator useful before major attacks, trades, amphibious landings, fleet battles, and capital pushes. Dice will still surprise you, but better planning reduces weak moves and protects your economy.
FAQs
1. What does this battle calculator estimate?
It estimates win chance, average battle length, likely losses, survivor value, and IPC swing by running many simulated battle trials.
2. Does artillery support infantry?
Yes. Each attacking artillery unit can support one attacking infantry unit. Supported infantry attack at two instead of one.
3. How does AA fire work here?
When enabled, defending AA guns fire before normal combat. Hits remove attacking air units before they roll in the main battle.
4. What is IPC swing?
IPC swing compares average defender losses against average attacker losses. A higher positive number means the attack destroys more value than it risks.
5. Why do results change after each run?
The calculator uses random dice trials. More simulations usually make results smoother and closer to the likely long-run outcome.
6. What casualty plan should I use?
Low value first is common. Protect air keeps fighters and bombers safer. High value first is mainly useful for stress testing unusual choices.
7. Can this handle naval battles?
Yes. It includes submarines, destroyers, cruisers, battleships, carriers, and transports. Submarine surprise fire can also be enabled.
8. Is this exact for every edition?
No. Editions and house rules can vary. Use the options as a strong estimate, then adjust unit values or rules in the code if needed.