Mythic Plus (M+) Score Calculator

Calculate your World of Warcraft M+ Rating for any dungeon run.

Run Score

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What is the m+ calculator?

The m+ calculator is a tool designed for World of Warcraft players to estimate the Mythic+ Rating they will receive from a dungeon run. Mythic+ is a challenging game mode where players must complete a dungeon within a specific time limit, with difficulty scaling infinitely through “keystone” levels. Your overall M+ score is a major factor in finding groups and is a sum of your best scores from each dungeon. This m+ calculator helps you understand how that score is generated for a single run.

Players use this m+ calculator to predict outcomes, compare run strategies, and understand the impact of completing a key faster or at a higher level. It demystifies the in-game scoring system, which is based on the keystone’s level, the time of completion relative to the dungeon’s timer, and the primary affixes (Fortified and Tyrannical).

The M+ Score Formula and Explanation

The rating from a single Mythic+ run is determined by a base score from the keystone level, modified by how quickly you complete the dungeon. The total Mythic+ Rating you see in-game is a combination of your best Fortified and Tyrannical runs for each dungeon. Specifically, your highest score for a dungeon contributes 1.5x its value, and your highest score on the *other* major affix contributes 0.5x its value. This calculator focuses on the score of a single run (the 1.5x component).

The core formula can be broken down into:

Run Score = (BaseKeystoneScore + TimeModifier) * AffixMultiplier

Formula Variables

Variable	Meaning	Unit / Type	Typical Range
BaseKeystoneScore	A fixed score awarded for completing a key of a certain level.	Points	~20 to 400+
TimeModifier	Bonus points for finishing early or a penalty for finishing late.	Points	-15 to +7.5
AffixMultiplier	A multiplier for your best run (1.5x) vs. your secondary run (0.5x). This calculator assumes it’s your best run.	Multiplier	1.5
Dungeon Timer	The base time limit for the selected dungeon.	Seconds	1800 – 2400

For more details on scoring, you can check out a raider io score explained guide.

Practical Examples

Example 1: A Fast Key

Imagine a team completes a +15 Ruby Life Pools. The timer is 30 minutes (1800 seconds).

• Inputs: Keystone Level 15, Time Taken 25:00.
• Calculation: The team finishes 5 minutes (300 seconds) under the timer. This grants a significant time bonus on top of the base score for a +15 key.
• Results: The resulting score will be high, reflecting both the respectable keystone level and the fast completion time. This is a typical goal for players pushing for a good mythic plus leaderboard position.

Example 2: A Depleted Key

Now, consider a team attempting a +20 Brackenhide Hollow. The timer is 38 minutes (2280 seconds).

• Inputs: Keystone Level 20, Time Taken 45:00.
• Calculation: The team finishes 7 minutes over the timer. The penalty for being over time will reduce the final score. However, because the keystone level is very high, the base score is substantial.
• Results: Even though the key was not “timed,” the score awarded will still be significant due to the high keystone level. This illustrates that completing a very high, difficult key slowly can still be more valuable than timing a much lower key.

How to Use This m+ calculator

1. Select the Dungeon: Choose the dungeon you ran from the dropdown menu. This automatically sets the correct base timer.
2. Enter Keystone Level: Input the level of the keystone you completed.
3. Set Time Taken: Enter the minutes and seconds from your run’s completion time.
4. Review the Score: The ‘Run Score’ will update automatically, showing your estimated M+ Rating for that run.
5. Analyze the Breakdown: Look at the intermediate values and the chart to see how much of your score came from the base level versus your completion speed. A tool like the keystone upgrade calculator can help you decide what level to tackle next.

Key Factors That Affect M+ Score

Keystone Level

This is the single most important factor. Each level provides a substantial increase in the base score.

Completion Speed

Finishing well under the timer provides a bonus, while going over reduces your score. The bonus is capped, but the penalty can be severe.

Affixes

Weekly affixes (like Bolstering, Sanguine, etc.) don’t directly change the score, but they dramatically affect the difficulty, which impacts your completion speed. A wow affix checker can help you prepare.

Group Coordination

A well-coordinated group that minimizes deaths and executes mechanics flawlessly will always achieve a faster time.

Player Gear and Skill

Higher item-level gear and individual player skill directly translate to faster trash clearing and boss kills, improving your time.

Dungeon Route

Efficient routing is critical. Knowing which trash packs to pull, which to skip, and how to manage enemy forces percentage is key to a fast run. Many players follow a dungeon timer guide for optimal paths.

Frequently Asked Questions (FAQ)

1. Is this the exact score I will see in-game?

This m+ calculator uses the community-understood formula, which is extremely close to the official one. Minor discrepancies can occur, but it should be very accurate for estimation.

2. Does this calculator account for both Fortified and Tyrannical?

This calculator shows the score for a single run. Your total score for a dungeon is `(Best Run Score * 1.5) + (Best alternate affix run * 0.5)`. You can use the calculator twice to find both values and combine them.

3. What happens if I go more than 40% over the timer?

If your completion time exceeds the dungeon timer by 40% or more, the key is considered “depleted.” You still get a score for completion, but the time modifier becomes a large penalty, significantly reducing the rating.

4. Why is my score for a +15 different from my friend’s?

Even at the same keystone level, the completion time is a major factor. If your friend finished the dungeon faster, their score will be higher.

5. Does this work for all dungeons?

Yes, you can select any dungeon from the current seasonal rotation. The calculator automatically adjusts the base timer used in the calculation.

6. How important is my M+ score?

Your Mythic+ score is a primary metric players use to judge experience when forming groups for higher keys. A higher score indicates you have successfully completed difficult content.

7. Can I lose score?

No. Your score for a dungeon can only be replaced by a higher score. A bad run will never lower your overall rating.

8. Where can I find info on the best gear for M+?

Looking up guides for best m+ trinkets and other gear is a great way to improve your performance and, consequently, your score.