Calculate your cooldown reduction, ability haste, and final spell cooldowns. Perfect for League of Legends, Dota 2, WoW, and all MOBA/RPGs. Optimize your ability uptime.
Consider adding more CDR items. You're at very low CDR.
Cooldown Reduction (CDR) is a stat that decreases the time between ability casts. It's expressed as a percentage and directly reduces your ability cooldowns, allowing you to cast spells more frequently.
Final Cooldown = Base Cooldown × (1 - CDR%)
Example: 10s cooldown with 40% CDR = 10 × (1 - 0.40) = 6 seconds
Effective CDR% = Ability Haste / (Ability Haste + 100)
Example: 100 Ability Haste = 100 / (100 + 100) = 50% effective CDR
Ability Haste scales linearly, meaning each point is equally valuable. This prevents CDR-stacking from being overpowered and makes itemization choices more flexible.
Moderate CDR (20-30%) is enough for burst combos. Focus on ability power and penetration first, then add CDR for team fights.
High CDR (40-50%) for sustained DPS. Spam abilities in extended fights. Balance with mana/energy management.
Moderate to high CDR (30-40%) for CC chains and peel. More CC uptime means better frontline control.
Maximum CDR (45-50%) for constant healing and shielding. Your team's survivability scales with your CDR.
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