League of Legends Build Path Optimizer

Compare two different item builds side-by-side to determine which maximizes your damage output against specific enemy resistances and health pools.

1. Champion Basics

Champion Name*

Enter the name of the champion you are simulating.

Champion Level

2. Target Dummy Stats

Dummy Health

Dummy Armor

Dummy Magic Resist

3. Build A Comparison

Total Attack Damage (Build A)

Ability Power (Build A)

Attack Speed (Build A)

Lethality (Build A)

% Armor Pen (Build A)

4. Build B Comparison

Total Attack Damage (Build B)

Ability Power (Build B)

Attack Speed (Build B)

Lethality (Build B)

% Armor Pen (Build B)

Build A vs Build B Analysis

Build A Statistics:
Estimated DPS:
Full Combo Damage:
Damage Mitigated:

42
200
33

Build B Statistics:
Estimated DPS:
Full Combo Damage:
Damage Mitigated:

42
200
33

Comparison Outcome: Build B provides a 0% higher DPS than Build A against this specific target dummy.

How to calculate League Damage?

Damage in LoL is reduced by resistances using a hyperbolic scaling formula.

Formula: Actual Damage = Raw Damage × (100 / (100 + Resistance))

Using the Optimizer: an example

Consider a level 11 ADC attacking a target with 100 Armor and 2000 HP.

Step-by-step calculation:

Calculate Armor reduction: 100/(100+100) = 50% reduction.
Apply Pen: 20 Lethality reduces 100 Armor to 80.
Calculate DPS: Multiply Auto Attack damage by Attack Speed.
Compare Build B: Determine if Critical Strike outweighs raw AD.

Frequently Asked Questions

What is effective HP?

Effective HP (EHP) is the amount of raw damage required to kill a target after accounting for their Armor or Magic Resist.

When is % Pen better than Lethality?

Lethality is stronger against squishy targets (low armor), while % Armor Pen scales better against tanks with 100+ Armor.

Does Attack Speed have a cap?

Yes, the standard Attack Speed cap is 2.5 attacks per second, unless using specific runes like Lethal Tempo.

League of Legends Build Path Optimizer

1. Champion Basics

2. Target Dummy Stats

3. Build A Comparison

4. Build B Comparison

Build A vs Build B Analysis

How to calculate League Damage?

Using the Optimizer: an example

Step-by-step calculation:

Frequently Asked Questions

What is effective HP?

When is % Pen better than Lethality?

Does Attack Speed have a cap?

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