Mythic Plus Rating Calculator

Analyze and project your World of Warcraft Mythic+ Score

Keystone Level	Base Rating	Max Time Bonus (+40%)	Weighted Total (100%)	Weighted Total (33%)

What is a Mythic Plus Rating Calculator?

A mythic plus rating calculator is a specialized tool designed for World of Warcraft players to determine their performance score in Mythic+ dungeons. Since the introduction of the in-game rating system, players have needed a precise way to calculate how specific runs impact their overall score. This score, often referred to as “Rovio” or simply M+ rating, determines your eligibility for achievements like Keystone Conqueror, Keystone Master, and Keystone Hero.

Who should use it? Any player aiming to push their character to higher difficulty tiers. Whether you are a casual player trying to hit 2000 rating for the seasonal mount or a competitive player pushing for the 0.1% title, understanding the math behind the mythic plus rating calculator is essential for strategic planning.

Mythic Plus Rating Calculator Formula and Mathematical Explanation

The rating system operates on a dual-affix weighting system. For every dungeon in the current rotation, you have two distinct scores: one for Fortified weeks and one for Tyrannical weeks. The mythic plus rating calculator uses a specific formula to blend these two.

The Core Formula:

• Base Score: 65 + (Keystone Level × 5)
• Time Factor: Runs completed faster than the timer earn up to +7.5 points. Runs over the timer lose points (up to -15).
• Weighted Total: (Higher Affix Score × 1.0) + (Lower Affix Score × 0.333)

Table 1: Variables used in the mythic plus rating calculator

Variable	Meaning	Unit	Typical Range
L	Keystone Level	Level	2 – 35
T	Time Remaining	Percentage	-40% to +40%
W	Affix Weight	Multiplier	1.0 or 0.33

Practical Examples (Real-World Use Cases)

Example 1: The Keystone Master Push

A player completes a +15 Halls of Infusion on Fortified week exactly on time (0% remaining). The mythic plus rating calculator determines the base score: 65 + (15 × 5) = 140. Since it’s their best run, it counts for 140 points. Later, they complete it on Tyrannical week at level 15. The total dungeon score becomes 140 + (140 × 0.33) = 186.2.

Example 2: Fast +20 Run

Imagine completing a +20 dungeon with 20% of the time remaining. The base score is 65 + (20 × 5) = 165. The 20% time bonus adds approximately 3.75 points. The raw score is 168.75. If this is the primary run, it adds significantly to the total mythic plus rating calculator results.

How to Use This Mythic Plus Rating Calculator

1. Select Keystone Level: Enter the numerical level of the dungeon you completed or plan to complete.
2. Input Completion Speed: If you beat the timer by 5 minutes on a 30-minute dungeon, that is roughly 16%. Input 16. If you were late, input a negative number.
3. Set Weighting: Choose whether this is your highest score for that dungeon (Primary) or your score for the opposite affix week (Secondary).
4. Analyze Results: The mythic plus rating calculator will instantly update the primary rating contribution and provide a breakdown of base points versus time bonuses.

Key Factors That Affect Mythic Plus Rating Results

• Keystone Level: This is the most significant factor. Each level provides a flat 5-point increase to the base score.
• Affix Rotation: Because the mythic plus rating calculator weights the secondary week at only 33%, you must push high keys in BOTH weeks to maximize your score.
• Timer Accuracy: Beating a timer by a large margin (three-chesting) provides a small but vital point boost compared to barely timing it.
• Over-Timer Penalties: Completing a dungeon after the timer expires still awards points, but the penalty increases the longer you take, up to 40% past the limit.
• Dungeon Count: Your total rating is the sum of all dungeons in the current season pool (usually 8). Missing even one dungeon in the mythic plus rating calculator will severely lower your total.
• Seasonal Scaling: Blizzard occasionally adjusts the base points (e.g., changing 65 to 70), so ensure your mythic plus rating calculator is updated for the current expansion season.

Frequently Asked Questions (FAQ)

1. Why did my score not go up after a run?

If the run’s score (Level + Time bonus) was lower than your existing record for that dungeon and affix, the mythic plus rating calculator will show no increase.

2. What is the maximum possible score?

Technically unlimited, as keystone levels can scale indefinitely, but practically it is capped by the highest level any player can complete within the timer.

3. Does the number of deaths affect my rating?

Only indirectly. Deaths remove time from the clock. The mythic plus rating calculator only cares about the final time compared to the dungeon limit.

4. How much is a +20 worth in the mythic plus rating calculator?

A +20 timed run is worth 165 base points. With both weeks timed at +20, the dungeon contributes ~220 points to your total.

5. What does the 0.33 weighting mean?

It means your “off-week” (the week where you have a lower key level) only contributes one-third of its value to your total rating.

6. Is Keystone Master 2000 or 2500?

This varies by season. Usually, timing all dungeons at +15 in both weeks (using the mythic plus rating calculator logic) yields 2000 rating.

7. Can I lose rating if I fail a key?

No, your rating can never go down. It only stays the same or increases if you improve your best performance.

8. Do affixes like Sanguine or Bolstering change the score?

No. The mythic plus rating calculator only looks at level and time. Affixes only change the difficulty of achieving that time.