AH and CDR Conversion Calculator





Formulas

To convert AH to CDR:

\[ CDR = 1 - \left( \frac{1}{1 + \frac{AH}{100}} \right) \]

To convert CDR to AH:

\[ AH = 100 \times \left( \frac{1}{1 - \frac{CDR}{100}} - 1 \right) \]

Definitions

Ability Haste (AH): A stat that reduces the cooldown of abilities, allowing them to be used more frequently.

Cooldown Reduction (CDR): The percentage by which the cooldown of abilities is reduced.

Conversion Table

AH CDR AH CDR
5 4.76% 5.26 5.00%
10 9.09% 11.11 10.00%
15 13.04% 17.65 15.00%
20 16.67% 25.00 20.00%
25 20.00% 33.33 25.00%
30 23.08% 42.86 30.00%
35 25.93% 53.85 35.00%
40 28.57% 66.67 40.00%
45 31.03% 81.82 45.00%
50 33.33% 100.00 50.00%
55 35.48% 122.22 55.00%
60 37.50% 150.00 60.00%
65 39.39% 185.71 65.00%
70 41.18% 233.33 70.00%
75 42.86% 300.00 75.00%
80 44.44% 400.00 80.00%
85 45.95% 566.67 85.00%
90 47.37% 900.00 90.00%
95 48.72% 1900.00 95.00%

Example Calculation

Example 1: Convert AH to CDR

Step 1: Use the formula:

\[ CDR = 1 - \left( \frac{1}{1 + \frac{30}{100}} \right) = 1 - \left( \frac{1}{1.3} \right) = 1 - 0.7692 = 0.2308 \]

Step 2: Convert to percentage:

\[ CDR \approx 23.08\% \]

Example 2: Convert CDR to AH

Step 1: Use the formula:

\[ AH = 100 \times \left( \frac{1}{1 - \frac{20}{100}} - 1 \right) = 100 \times \left( \frac{1}{0.8} - 1 \right) = 100 \times \left( 1.25 - 1 \right) = 100 \times 0.25 = 25 \]