Mythic Plus Rating Calculator

Accurately estimate your Mythic Plus score and understand the factors that influence it.

Mythic Plus Rating Calculator

Affix Name	Type	Effect	When Active
Fortified	Telegraphed	Non-boss enemies have 30% more health and deal 15% more damage.	Levels 2, 6, 10+
Tyrannical	Telegraphed	Bosses have 40% more health and deal 20% more damage.	Levels 2, 6, 10+
Raging	Telegraphed	Enemies below 30% health enrage, dealing 30% more damage.	Levels 4, 8, 10+
Spiteful	Telegraphed	When players leave combat, they spawn Spiteful Shades.	Levels 4, 8, 10+
Bolstering	Telegraphed	When an enemy dies, the nearest 3 allies gain 20% of max health and damage.	Levels 4, 8, 10+
Sanguine	Telegraphed	Pools of blood erupt around players. Players in pools take damage and are slowed.	Levels 4, 8, 10+
Necrotic	Telegraphed	Player damaging abilities apply Necrotic Wound, dealing Shadow damage and increasing damage taken.	Levels 4, 8, 10+
Volcanic	Telegraphed	Players periodically have volcanic rocks erupt at their feet.	Levels 7, 10+
Afflicted	Telegraphed	Periodically, players are afflicted by a dispelable debuff.	Levels 7, 10+
Storming	Telegraphed	Players are periodically knocked up by wind.	Levels 7, 10+
Incorporeal	Telegraphed	Enemies periodically become incorporeal, dodging attacks.	Levels 10+
Thundering	Telegraphed	Players periodically gain stacks of Fulminating Reminiscence, then unleash storm energy.	Levels 10+

Common Mythic+ Affixes and their activation thresholds.

What is Mythic Plus Rating?

Mythic Plus (M+) rating is a system implemented in World of Warcraft to quantify a player’s performance and experience in Mythic+ dungeons. It serves as a robust progression metric, rewarding players for successfully completing dungeons at increasingly higher difficulty levels and within specific time constraints. This rating is a crucial indicator for group leaders when forming teams for challenging content, as it demonstrates a player’s familiarity with mechanics, ability to handle pressure, and overall effectiveness in a dungeon environment. Understanding your M+ rating is essential for any player aspiring to tackle the most difficult dungeons and participate in competitive raiding or PvP.

Who should use it:

Any player participating in Mythic+ dungeons in World of Warcraft should understand and aim to improve their Mythic Plus rating. This includes:

• Players seeking to progress through higher key levels.
• Players looking to join organized Mythic+ groups.
• Players who want to track their individual improvement over time.
• Players aiming to achieve certain benchmarks or achievements related to M+ content.

Common Misconceptions:

• Rating is solely based on highest key completed: While completing higher keys significantly boosts your rating, the score is also heavily influenced by the *time* you complete them in, and the affixes present. A timed +15 might yield more score than a depleted +18.
• Rating is capped per dungeon: Each dungeon has a maximum score achievable. Repeating the same dungeon at the same level indefinitely won’t increase your rating beyond its cap. The goal is to complete a variety of dungeons at high levels.
• Only the top 5 dungeons matter: While the system prioritizes your highest-scoring dungeons, your total score is a sum of your best dungeons (typically 2 of each role or faction, totaling up to 8 highest-scoring dungeons, though the exact number can fluctuate). This encourages a diverse dungeon pool.

Mythic Plus Rating Formula and Mathematical Explanation

The Mythic Plus rating calculation is a multi-faceted system designed to reward both difficulty and efficiency. While the exact, minute-by-minute weighting can be proprietary and subject to minor adjustments by Blizzard, the core principles are well-understood and can be approximated by the following formula:

Approximate Rating Formula:

Rating = (Base Score Potential + Time Bonus Factor) * Affix Difficulty Modifier

Let’s break down each component:

1. Base Score Potential

This represents the maximum score a dungeon is worth at a given level *if completed significantly under the time limit*. Each dungeon level awards a set amount of score. For example, a level 15 dungeon has a higher base score potential than a level 10 dungeon. The base score increases with each key level. This value is fundamental to your rating. A common approximation for the base score potential of a dungeon at level L is roughly 100 * L points, though this can vary and is capped per dungeon.

2. Time Bonus Factor

This component rewards players for completing the dungeon quickly. There’s a target time and a “one-shot” time (or deplete time). Completing the dungeon before the target time earns bonus points. The closer you are to the target time, the higher this bonus. If you exceed the target time, the bonus decreases, and if you go past the deplete threshold, you receive no time bonus and potentially a score penalty. The bonus scales significantly. For our calculator, we’ll use a simplified approach where times significantly under the target yield a high factor, and times closer to or exceeding the target yield a lower factor.

A simplified model might consider the time limit for a dungeon level L. Let’s assume a target time of T_target minutes (e.g., T_target = 40 minutes for most dungeons at +10, scaling linearly). If completion time T_complete is less than T_target, the time bonus factor can be approximated. A common calculation involves a multiplier based on how much time is left on the clock.

For this calculator, we’re using a simplified factor derived from completion time and assumed target times.

3. Affix Difficulty Modifier

This multiplier increases your score based on the affixes present. Higher-level keys have more affixes active, and some affixes are inherently more difficult. The presence of ‘Fortified’ and ‘Tyrannical’ is standard from level 2, adding a baseline multiplier. As keys increase, more affixes become active (like Raging, Spiteful, Necrotic at level 4; Volcanic, Sanguine at level 7; and Incorporeal/Thundering at level 10). The calculator accounts for whether all affixes are active (typically for +10 and above) and a “weekly bonus” affix which can add an extra layer of difficulty and score potential. The total modifier is calculated based on the number and type of affixes active.

A simple modifier might be:

• Base: 1.0 (for keys with only Fortified/Tyrannical)
• + Raging/Spiteful/Bolstering/Sanguine/Necrotic (Level 4+): +0.1 or 0.2
• + Volcanic/Afflicted/Storming (Level 7+): +0.1 or 0.2
• + Incorporeal/Thundering (Level 10+): +0.1 or 0.2
• Weekly Bonus Affix: Adds a further boost, represented here by the weeklyBonus input.

Our calculator uses a simplified approach where `allAffixes` being true implies a higher base multiplier, and `weeklyBonus` adds to this. The total modifier can reach values significantly above 1.0.

Variables Table

Variable	Meaning	Unit	Typical Range
Dungeon Level (L)	The base keystone level.	Integer	2 – 29+
Completion Time (T_complete)	Actual time taken to complete the dungeon.	Minutes (decimal)	0.01 – 120+
Target Time (T_target)	The time limit for earning maximum score at a given level.	Minutes	Varies by level (e.g., ~40 min for +10)
Base Score Potential	Score awarded for completing the dungeon at the given level, ignoring time.	Points	~100 * L (capped)
Time Bonus Factor	Multiplier applied based on how quickly the dungeon was completed relative to the target time.	Decimal (e.g., 0.5 – 1.5)	0.0 – ~1.5 (for very fast runs)
Affix Difficulty Modifier	Multiplier applied based on the affixes active during the run.	Decimal (e.g., 1.0 – 2.0+)	~1.2 – 2.0+ (for high keys with many affixes)
Weekly Bonus Affix Level	The difficulty level of the bonus affix for the week.	Integer	0 – 2 (Simplified: 0 = no bonus affix, 1 = basic bonus affix, 2 = harder bonus affix)
Mythic+ Rating	The final calculated score for the dungeon run.	Points	0 – 3000+

Variables used in the Mythic Plus Rating calculation.

Practical Examples (Real-World Use Cases)

Let’s see how the calculator works with realistic scenarios:

Example 1: A Well-Timed High Key

Scenario: A player completes “The Underrot” at Mythic+ Level 18. They finish with a time of 32 minutes and 45 seconds. All four affixes (Fortified, Tyrannical, Raging, Spiteful) were active, plus the weekly bonus affix “Volcanic” is active (Level 1 bonus). The target time for a +18 is approximately 40 minutes.

Inputs:

• Dungeon Level: 18
• Completion Time: 32 minutes, 45 seconds (32.75 minutes)
• All Affixes Active: Yes
• Weekly Bonus Affix: 1

Calculator Output (Estimated):

Primary Result: ~2550 Mythic+ Rating

Intermediate Values:

• Base Score Potential: ~1800
• Time Bonus Factor: ~1.15 (since 32.75 is well under the 40 min target)
• Affix Difficulty Modifier: ~1.42 (combination of Fortified/Tyrannical, Raging/Spiteful, and the Volcanic bonus)

Interpretation: This run yields a very strong score, significantly contributing to the player’s overall Mythic+ rating. Completing a high key well within the time limit, especially with challenging affixes, is the most effective way to climb the ladder.

Example 2: A Depleted Mid-Level Key

Scenario: A player attempts “Temple of the Jade Serpent” at Mythic+ Level 12. They struggle and finish with a time of 45 minutes and 10 seconds. Fewer than 4 affixes were active (as the key is below level 10), and there’s no weekly bonus affix active this week. The target time for a +12 is approximately 40 minutes.

Inputs:

• Dungeon Level: 12
• Completion Time: 45 minutes, 10 seconds (45.17 minutes)
• All Affixes Active: No
• Weekly Bonus Affix: 0

Calculator Output (Estimated):

Primary Result: ~780 Mythic+ Rating

Intermediate Values:

• Base Score Potential: ~1200
• Time Bonus Factor: ~0.65 (since 45.17 minutes is over the 40 min target)
• Affix Difficulty Modifier: ~1.08 (baseline for fewer affixes, no bonus)

Interpretation: This run provides a moderate score. While the base potential is decent due to the dungeon level, exceeding the target time significantly reduces the time bonus. It still contributes positively, but less effectively than a timed run. This highlights the importance of efficiency for maximizing your rating gains.

How to Use This Mythic Plus Rating Calculator

Our calculator is designed for simplicity and accuracy, helping you understand your performance in Mythic+ dungeons.

1. Input Dungeon Level: Enter the numerical level of the Mythic+ keystone you used (e.g., 15 for a +15).
2. Input Completion Time: This is critical. Enter the time in whole minutes and then the remaining seconds separately. For example, for 35 minutes and 30 seconds, enter ’35’ for Dungeon Level and ’30’ for Seconds.
3. Affix Selection: Choose ‘Yes’ if the dungeon was completed at a level where all four standard affixes (like Fortified/Tyrannical, Raging/Spiteful, etc.) were active. Choose ‘No’ for levels below 10 where fewer affixes are typically present.
4. Weekly Bonus Affix: If there’s a special weekly affix that adds difficulty (like Trembling, Inscribed, etc.), input its bonus level. Generally, this will be 0 (no special bonus affix), 1 (standard bonus affix), or sometimes 2 for particularly challenging weeks. This calculator simplifies it to a 0-2 scale.
5. Calculate: Click the “Calculate Rating” button.

How to Read Results:

• Primary Result: This is your estimated total Mythic+ rating points for that specific dungeon run.
• Base Score Potential: The score inherent to completing the dungeon at its specified level.
• Time Bonus Factor: How much your score is boosted (or slightly reduced) by your completion time relative to the target time. A factor above 1.0 is good.
• Affix Difficulty Modifier: The multiplier applied due to the number and type of affixes active. Higher is better.

Decision-Making Guidance:

• Use this calculator to compare different dungeon runs. Which runs are contributing the most to your rating?
• Identify areas for improvement: Is your completion time too slow? Are you struggling with specific affixes?
• Aim for timed runs at the highest possible key level you can consistently complete, while also ensuring you tackle a variety of dungeons to maximize your overall rating.

Key Factors That Affect Mythic Plus Rating Results

Several elements significantly influence the Mythic Plus rating you earn from a dungeon run. Understanding these factors is key to strategic progression:

1. Dungeon Level: This is the most fundamental factor. Each increase in keystone level grants a substantial boost to the base score potential of the dungeon. Higher levels are exponentially more rewarding.
2. Completion Time: As demonstrated, finishing significantly under the target time yields a time bonus factor greater than 1.0, directly increasing your rating. Conversely, exceeding the time limit reduces this bonus, and timing out completely results in a severe penalty, often negating the base score.
3. Affixes: The presence of affixes dramatically impacts difficulty and, consequently, rating. Standard affixes like Fortified, Tyrannical, Raging, and Spiteful increase the base multiplier. Higher key levels introduce more affixes, further amplifying the difficulty modifier. The weekly bonus affix also adds to this multiplier.
4. Dungeon Variety: While not directly a factor in a *single* run’s calculation, your overall Mythic+ rating is based on your best performances across multiple dungeons. Focusing on only one or two dungeons limits your total score potential, as the system typically rewards up to 8 of your highest-scoring runs (often 2 per role or faction).
5. Depleted Keys: If a key is depleted (completed past the time limit), it still awards a rating, but significantly less than a timed completion. The score is based on a reduced formula and often a time factor below 1.0.
6. Specific Dungeon Score Caps: Each dungeon has a maximum score achievable at a given level. Once you hit this cap, repeating that specific dungeon at that same level will no longer increase your rating. This encourages players to tackle other dungeons to diversify their score.
7. Player Performance & Group Composition: While not directly in the formula, how efficiently your group plays—managing mechanics, CC, interrupts, and healing—determines if you can meet the time requirements. A poorly coordinated group will struggle to get the time bonus, impacting the final rating.

Frequently Asked Questions (FAQ)

Q1: How is Mythic+ rating calculated exactly?

A1: It’s a combination of the base score potential from the dungeon level, a bonus for completing it quickly (time bonus factor), and a multiplier based on the affixes active (affix difficulty modifier). The precise values and scaling are proprietary but follow this general structure.

Q2: Does completing a +20 deplete count for anything?

A2: Yes, a depleted key still awards rating, but it’s significantly less than a timed run. You’ll get the base score potential for the level, but the time bonus factor will be very low or zero, and the affix modifier might be slightly reduced.

Q3: What’s the best way to increase my Mythic+ rating quickly?

A3: Focus on completing higher-level keys (your current highest possible) within the time limit. Aiming for timed runs on dungeons you are comfortable with is most effective.

Q4: How many dungeons count towards my total rating?

A4: Typically, the system considers your best 8 dungeon scores (2 per faction/role). This encourages players to learn and perform well across a variety of dungeons.

Q5: Are all dungeons worth the same score at the same level?

A5: No. While the dungeon level is the primary driver, each dungeon has a specific time limit and set of affixes that can influence its maximum achievable score. Some dungeons are inherently easier to time than others.

Q6: What is the ‘weekly bonus affix’ in the calculator?

A6: This refers to the special affix that rotates weekly (e.g., Trembling, Inscribed) and applies to all dungeons at +10 and above. It adds an extra layer of challenge and boosts the affix difficulty modifier.

Q7: How does the ‘All Affixes Active?’ option work?

A7: For keystone levels 10 and above, all four affixes (e.g., Fortified/Tyrannical, Raging/Spiteful, etc.) are active. Below level 10, fewer affixes are present. This option helps the calculator apply the correct base affix multiplier.

Q8: Can I use this calculator for older expansions?

A8: The core principles of Mythic+ rating have remained consistent, but specific score values, time limits, and affix mechanics can change between expansions. This calculator is most accurate for the current World of Warcraft expansion.

Related Tools and Internal Resources

• Raid Composition Planner
  Plan your ideal raid setup for maximum synergy and efficiency.
• WoW Gear Optimizer
  Find the best gear for your character based on your specialization and content type.
• Talent Build Calculator
  Explore and compare different talent builds for your class and spec.
• Weekly Quest Tracker
  Stay on top of all available weekly quests and rewards in Azeroth.
• Mythic+ Dungeon Loot Guide
  Discover which items drop in each Mythic+ dungeon to target your BiS gear.
• WoW Stat Priority Guide
  Understand the most important stats for your character’s performance.