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đŸ›Ąī¸ Defense Optimization Tool

Resistance & Mitigation Calculator

Calculate your actual damage reduction from armor, resistances, and damage reduction stats. Understand layered defenses.

Your Defense Stats

Physical damage reduction: 85.0%

From gear, aspects, and skills (capped at 85%)

Current fortify amount

Active barrier shields

Elemental Resistances

â„šī¸ Resistances cap at 70%. Get as close to cap as possible for all elements. Each element requires separate gear rolls.

Enemy Configuration

Higher level reduces armor effectiveness

Base damage before mitigation

Damage Mitigation

Final Damage Taken
975
Out of 10,000 incoming
Total Mitigation
90.3%
Immortal
Near invincible
Damage Reduction Layers:
1. Base Damage (normal) 10,000
2. After Armor (85.0%) 1,500
−8,500 blocked
3. After DR (35%) 975
−525 blocked

💡 Layer your defenses! Armor/Resistances → DR → Fortify → Barrier

Understanding Defense Layers

1. Armor (Physical Damage Only)

Armor only protects against physical damage. The formula is: Armor / (Armor + Enemy Level × 5). Higher enemy levels reduce armor effectiveness. Maximum mitigation is capped at 85%.

2. Resistances (Elemental Damage Only)

Resistances protect against Fire, Cold, Lightning, Poison, and Shadow damage. Each resistance is separate and must be built individually. All resistances are capped at 70% and are crucial for endgame survival.

3. Damage Reduction (All Damage)

DR applies to all damage types after armor/resistance mitigation. Sources include gear affixes, aspects, paragon nodes, and skill modifiers. DR is additive and capped at 85%. This is your most universal defense layer.

4. Fortify (Damage Absorption)

Fortify absorbs incoming damage after all mitigation layers. When you have fortify greater than your current life, you become "Fortified" and take 10% reduced damage. Fortify depletes as it absorbs damage.

5. Barrier (Damage Shield)

Barrier is a shield that completely absorbs damage before it touches your health. Unlike fortify, barrier blocks 100% of the remaining damage until depleted. Multiple barriers can stack.

Optimization Tips

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Prioritize Resistance Capping

Always aim for 70% in all resistances before heavily investing in other defenses. Uncapped resistances can lead to one-shots from elemental damage.

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Balance Armor and DR

Both armor and DR have diminishing returns. A balanced approach (8000+ armor, 35%+ DR) is typically more effective than maxing just one stat.

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Stack Defense Layers

Multiple defense layers multiply effectiveness. A character with 50% armor, 70% resistance, and 35% DR mitigates significantly more than the sum of individual percentages.

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Adapt to Enemy Types

Use conditional DR affixes like "DR from Close/Distant Enemies" or "DR from Elites" based on your build's playstyle and the content you're running.

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Don't Neglect Active Defenses

Fortify and Barrier are powerful when maintained. Build around skills and aspects that generate these shields consistently during combat.