HSR Relic Calculator

Calculate and optimize your Honkai: Star Rail relic stats to maximize your character’s effectiveness.

Relic Stat Optimizer

Optimized Relic Stats

Total ATK: —

Total HP: —

Total DEF: —

Crit Rate: —

Crit DMG: —

Speed: —

Calculated based on your inputs. Values are approximations and assume average substat roll ranges.

What is an HSR Relic Calculator?

An HSR Relic Calculator is a specialized tool designed for players of the game Honkai: Star Rail. Its primary function is to help players understand and optimize the stats on their character’s relics. Relics are powerful equipment pieces that provide significant stat boosts and unique effects, crucial for building strong and effective characters in the game. This calculator allows you to input various relic parameters – like the relic’s level, main stat, and substats – to see the combined impact on your character’s core attributes such as ATK, HP, DEF, Crit Rate, Crit DMG, and Speed.

Essentially, it takes the guesswork out of relic optimization by providing a clear numerical representation of how good a particular relic (or combination of substats) truly is. This is vital for endgame content where min-maxing stats can make a significant difference in combat performance.

Who Should Use It?

• New Players: To get a foundational understanding of how relic stats contribute to character power.
• Intermediate Players: To start identifying better relics and understanding stat priorities for specific characters.
• Endgame Players: For precise optimization, comparing potential substat rolls, and theorycrafting the best gear sets.
• Theorycrafters: To simulate different relic stat combinations and analyze their impact on character builds.

Common Misconceptions

• “All substats are equal”: While all substats add to a character’s power, their relative value heavily depends on the character’s base stats, role, and existing gear. Crit Rate and Crit DMG are often prioritized for damage dealers, while Speed is crucial for almost everyone.
• “Flat stats are always bad”: Flat ATK, HP, and DEF can be valuable on characters with very low base stats or specific niche builds, though percentage-based stats generally scale better at higher levels.
• “You only need one good relic”: Effective character building requires optimizing all four relic slots (Head, Hands, Body, Feet) and the two Planar Ornaments, not just one piece.

HSR Relic Calculator Formula and Mathematical Explanation

The HSR Relic Calculator estimates a character’s total stats by summing up contributions from their base stats and the relic’s main and substats. The core idea is to provide a snapshot of a character’s potential power based on the gear equipped. The specific formulas can vary slightly depending on the game’s exact stat scaling, but the general principle remains the same.

Calculation Steps:

1. Base Stat Calculation: The calculator starts with the character’s base ATK, HP, and DEF, which are fundamental values.
2. Main Stat Scaling: The value of the relic’s main stat is determined by its type and the relic’s level. For percentage-based stats (e.g., ATK%, HP%), the value is a percentage of the character’s base stat. For flat stats (e.g., Flat ATK) or direct stats (e.g., Speed), it’s a direct addition. The calculator uses pre-defined scaling values for each stat at different relic levels. For simplicity, this calculator uses the Level 15 value directly.
3. Substat Calculation: Each substat adds a certain amount to the total. Substats can roll into one of several possible values, and each upgrade level adds a “roll.” For example, a Crit Rate substat might add +2.7% Crit Rate per roll. This calculator approximates the total substat contribution based on the number of rolls and the average value of a single substat roll for its type.
4. Total Stat Aggregation: All contributions (Base, Main Stat, Substats) are summed up to provide the final estimated character stats. Flat ATK, HP, and DEF are added directly. Percentage stats are applied to the character’s base stats (and potentially other percentage sources, though this calculator focuses on the relic’s direct contribution).

Variables Explained:

Variable	Meaning	Unit	Typical Range (Approx.)
Base ATK	Character’s inherent Attack Power.	Points	~500-1300+
Base HP	Character’s inherent Health Points.	Points	~800-1500+
Base DEF	Character’s inherent Defense.	Points	~300-700+
Relic Level	Current upgrade level of the relic.	0-15	0-15
Main Stat Type	The primary stat provided by the relic.	Type	Various (ATK%, HP%, DEF%, Crit Rate, Crit DMG, Speed, etc.)
Main Stat Value	The base value of the main stat at Level 15.	Points/%	Varies greatly (e.g., ~55% ATK for Body, ~41% ATK for Feet, ~300 Flat ATK for Hands)
Substat Type	An additional stat on the relic.	Type	Various (as above)
Substat Rolls	Number of times a substat has been upgraded.	Count	0-5 (each relic gains a substat at Lv 0, 3, 6, 9, 12, 15, for a maximum of 5 additional rolls if it started with 4 substats)
Substat Roll Value	The amount added per substat roll.	Points/%	e.g., Crit Rate: ~2.7% per roll; Speed: ~3 per roll; ATK%: ~4.3% per roll.
Total ATK	Combined ATK from Base, Main Stat, and Substats.	Points	Calculated
Total HP	Combined HP from Base, Main Stat, and Substats.	Points	Calculated
Total DEF	Combined DEF from Base, Main Stat, and Substats.	Points	Calculated
Crit Rate	Final Crit Rate stat, including relic contributions.	%	Calculated
Crit DMG	Final Crit DMG stat, including relic contributions.	%	Calculated
Speed	Final Speed stat, including relic contributions.	Points	Calculated

Note: This calculator focuses on a single relic’s contribution to a character’s base stats. A full character build involves multiple relics and potentially set bonuses.

Practical Examples (Real-World Use Cases)

Example 1: High-End DPS Relic – Crit Rate Body

Let’s analyze a potentially great Body relic for a DPS character like Seele.

• Character Base ATK: 1200
• Character Base HP: 1000
• Character Base DEF: 500
• Relic Level: 15
• Main Stat Type: Crit Rate%
• Main Stat Value (Level 15): 43.2%
• Substat 1: Crit DMG%
• Substat 2: Speed
• Substat 3: ATK%
• Substat 4: Flat HP
• Number of Substat Rolls: 5 (maximum possible upgrades)

Assumed Average Roll Values:

• Crit DMG%: +6.5% per roll
• Speed: +3 per roll
• ATK%: +4.3% per roll
• Flat HP: +40 per roll

Calculation Breakdown:

• Main Stat Contribution: 43.2% Crit Rate
• Substat Contributions:
  • Crit DMG: 5 rolls * 6.5% = 32.5%
  • Speed: 5 rolls * 3 = 15 Speed
  • ATK: 5 rolls * 4.3% = 21.5% ATK
  • Flat HP: 5 rolls * 40 = 200 Flat HP
• Estimated Total Stats (from this relic only):
  • Crit Rate: 43.2% (Main)
  • Crit DMG: 32.5% (Substats)
  • Speed: 15 (Substats)
  • ATK: +21.5% (Substats)
  • HP: +200 (Substats)

Interpretation: This relic would be incredibly valuable for a DPS character, adding significant Crit Rate and Crit DMG, a substantial speed boost, and a decent chunk of ATK. The Flat HP is less impactful but still a bonus.

Example 2: Defensive Relic – HP% Body for a Tank

Consider a Body relic for a tank character like Fu Xuan.

• Character Base ATK: 600
• Character Base HP: 1300
• Character Base DEF: 650
• Relic Level: 15
• Main Stat Type: HP%
• Main Stat Value (Level 15): 58.3%
• Substat 1: DEF%
• Substat 2: Flat HP
• Substat 3: Speed
• Substat 4: Crit Rate%
• Number of Substat Rolls: 4

Assumed Average Roll Values:

• DEF%: +7.8% per roll
• Flat HP: +200 per roll
• Speed: +3 per roll
• Crit Rate%: +2.7% per roll

Calculation Breakdown:

• Main Stat Contribution: 58.3% HP
• Substat Contributions:
  • DEF: 4 rolls * 7.8% = 31.2% DEF
  • Flat HP: 4 rolls * 200 = 800 Flat HP
  • Speed: 4 rolls * 3 = 12 Speed
  • Crit Rate: 4 rolls * 2.7% = 10.8% Crit Rate
• Estimated Total Stats (from this relic only):
  • HP: 58.3% (Main) + (800 / 1300 Base HP) * 100% ≈ 58.3% + 61.5% = 120% total HP increase from this relic. This is complex as base HP matters. Using the calculator is simpler.
  • DEF: 31.2% (Substats)
  • Speed: 12 (Substats)
  • Crit Rate: 10.8% (Substats)

Interpretation: This relic significantly boosts the tank’s survivability with massive HP and good DEF. The Speed and Crit Rate substats are less crucial for a pure tank but still add utility.

How to Use This HSR Relic Calculator

Using the HSR Relic Calculator is straightforward. Follow these steps to get accurate estimations for your relic stats:

1. Input Character Base Stats: Enter your character’s Base ATK, Base HP, and Base DEF. These are found on the character details screen.
2. Enter Relic Level: Select the current level of the relic you are evaluating (0-15).
3. Select Main Stat: Choose the Main Stat Type (e.g., ATK%, Crit Rate, Speed) and input its corresponding Main Stat Value. You can find these values on online HSR stat sheets or by looking at the relic in-game at Level 15.
4. Choose Substats: Select up to four Substat Types from the dropdown menus. If a relic has fewer than four substats, leave the remaining slots as “None.”
5. Specify Substat Rolls: Enter the total number of times the chosen substats have been upgraded (0 to 5). This reflects how many times each substat has received a value increase.
6. Calculate: Click the “Calculate” button.

How to Read Results:

• Main Result: This will display the most impactful stat generated by the relic (e.g., highest percentage increase or highest flat value).
• Intermediate Values: The calculator shows your estimated Total ATK, Total HP, Total DEF, Crit Rate, Crit DMG, and Speed as contributed by this single relic.
• Chart: The accompanying chart visually represents the distribution of key stats provided by the relic.

Decision-Making Guidance:

Use the results to:

• Compare different relics for the same character.
• Prioritize which relics to farm or upgrade.
• Identify the best substats for a specific character’s role (e.g., prioritizing Speed and Crit Rate for attackers, HP% and DEF% for sustain characters).
• Understand the potential of a relic before investing significant upgrade materials.

Key Factors That Affect HSR Relic Results

While the calculator provides a good estimate, several factors influence the true effectiveness of relics in Honkai: Star Rail:

1. Character Role and Scaling: Different characters scale differently. A DPS character heavily relies on ATK%, Crit Rate, and Crit DMG, while a tank prioritizes HP% and DEF%. The calculator helps see if a relic aligns with the character’s needs.
2. Base Stats: Percentage-based stats (like ATK%, HP%) are applied to the character’s base stats. Therefore, a character with higher base ATK will gain more ATK from an ATK% substat than a character with lower base ATK.
3. Substat Roll Variance: The calculator uses average substat roll values. In reality, each roll can land on the lower, middle, or higher end of its range. A relic with “max rolls” on desirable substats is significantly better. This is why players often discuss “good rolls.”
4. Relic Set Bonuses: This calculator focuses on individual relic stats. However, equipping a 2-piece or 4-piece set bonus from specific relic sets (e.g., Messenger Traversing Hackerspace for Speed, Musketeer of Wild Wheat for ATK%) can drastically alter a character’s overall effectiveness and stat priorities.
5. Team Synergy: A relic’s value can increase based on support characters. For example, Bronya’s ultimate buffs ATK, making ATK% substats slightly less critical on the unit she’s supporting. Pela’s debuffs can make Effect Hit Rate less necessary.
6. Target Stat Thresholds: Many characters aim for specific stat breakpoints. For instance, reaching 70% Crit Rate is often a major goal for damage dealers. This calculator helps in aiming for those thresholds by showing potential contributions.
7. Planar Ornaments: These two extra gear pieces offer powerful main stats and set bonuses that significantly impact a character build. They are not included in this single-relic calculator but are crucial for overall optimization.
8. Effect Hit Rate vs. Effect RES: For characters who apply debuffs, Effect Hit Rate is vital. Conversely, characters who need to resist debuffs benefit from Effect RES. The calculator can show if a relic contributes to these, but their importance depends heavily on the enemy and character.

Frequently Asked Questions (FAQ)

Q: Does this calculator consider Relic Set Bonuses?

A: No, this calculator focuses on the individual stats of a single relic. Set bonuses from equipping multiple relics of the same set are not factored in, but they are a critical part of overall character building.

Q: How accurate are the substat roll estimations?

A: The calculator uses average values for each substat roll. Actual rolls can vary, meaning a relic might be slightly better or worse than calculated depending on the luck of the rolls.

Q: What are the best substats for a DPS character?

A: Generally, the top substats for DPS characters are Crit Rate, Crit DMG, ATK%, and Speed. The priority often depends on the specific character and their base stats.

Q: What about support or tank characters?

A: For supports and tanks, priorities shift towards HP%, DEF%, Speed, and sometimes Effect RES or Effect Hit Rate, depending on their abilities and role.

Q: Can I use this to calculate multiple relics at once?

A: This calculator is designed for evaluating a single relic’s potential contribution. To optimize a full set, you would need to run the calculator for each desired relic piece and sum the results, considering potential overlaps and set bonuses.

Q: What is the difference between flat stats and percentage stats?

A: Flat stats (e.g., Flat ATK) add a fixed amount, while percentage stats (e.g., ATK%) add a portion of the character’s base stat. Percentage stats generally scale better on characters with higher base stats.

Q: How do I find the Main Stat Value for my relic?

A: You can check the Main Stat Value in-game when the relic is at Level 15. Alternatively, reliable HSR stat websites provide these values for all main stats and relic types.

Q: Is Speed a substat or a main stat?

A: Speed can be both a main stat (on Boots) and a substat on any relic piece. This calculator allows you to input it as either.