HSR Build Calculator
An expert tool to optimize character builds in Honkai: Star Rail by calculating final combat stats.
Base Stats
Relic Main Stats
Total Substats & Buffs
Chart: Breakdown of Total ATK Components
What is an hsr build calculator?
An hsr build calculator is a specialized tool for the game Honkai: Star Rail designed to help players optimize their character’s stats. It allows you to input various values from your character, their Light Cone, and their Relics to compute the final, in-combat stats like Total ATK, CRIT Rate, and CRIT DMG. This process removes guesswork and helps in making informed decisions about which gear to upgrade, leading to significantly better performance in battles. A good hsr build calculator is essential for any player looking to tackle the game’s most challenging content.
The HSR Build Formula and Explanation
The core of any hsr build calculator is the stat calculation formula. In Honkai: Star Rail, final stats are generally calculated by taking a base value, adding percentage-based increases, and then adding flat bonuses. The damage output is then influenced by a combination of these stats.
The main formula for a character’s total Attack is:
Total ATK = (Character Base ATK + Light Cone Base ATK) * (1 + Sum of all ATK%) + Total Flat ATK
This formula highlights why balancing different types of stats is crucial for an effective build. Simply stacking one stat often leads to diminishing returns. For a deeper analysis of your build, you might use a Honkai Star Rail damage calculator to see how these stats translate into actual damage.
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Base ATK | The character’s attack stat without any gear. | Points | 300 – 800 |
| ATK% | Percentage-based increase to attack from relics and buffs. | % | 5% – 120% |
| CRIT Rate | The probability of an attack landing a critical hit. | % | 5% – 100% |
| CRIT DMG | The damage multiplier applied on a critical hit. | % | 50% – 300% |
| SPD | Determines a character’s action order and frequency. | Points | 90 – 170 |
Practical Examples
Example 1: High CRIT DMG DPS Build
A player is building a main DPS character and wants to maximize their critical damage output. They use the hsr build calculator with the following inputs:
- Inputs: Base ATK: 700, LC ATK: 600, Body Main Stat: CRIT DMG (64.8%), Feet Main Stat: SPD (25), Total Substat CRIT Rate: 20%, Total Substat CRIT DMG: 30%.
- Results: The calculator shows a high Total CRIT DMG of around 145%, but a CRIT Rate of only 30%. While individual hits are strong, their inconsistency lowers overall DPS.
Example 2: Balanced CRIT Ratio Build
Learning from the first example, the player adjusts their build for a better CRIT ratio, often recommended to be 1:2 for Rate:DMG. They find a different Body relic.
- Inputs: Same as above, but with Body Main Stat changed to CRIT Rate (32.4%).
- Results: The hsr build calculator now outputs a Total CRIT Rate of ~62% and a Total CRIT DMG of ~80%. Although the CRIT DMG value is lower, the damage is far more consistent, leading to a higher average damage output over time. This shows the power of using a calculator to find the right balance. For more on character builds, check out our Seele build guide.
How to Use This hsr build calculator
- Enter Base Stats: Input your character’s Base ATK and Base SPD from their in-game stat page. Then, add the Base ATK from their equipped Light Cone.
- Select Main Stats: Choose the main stats for your Body and Feet Relics from the dropdown menus. These have a significant impact on the final build.
- Add Substats and Buffs: Sum up all the relevant percentages and flat stats from your relic substats and enter them into the fields. Include any set bonuses or external buffs in the “Total DMG Boost %” field.
- Analyze the Results: The calculator will instantly update your Total ATK, CRIT Rate, CRIT DMG, and SPD. The “Average Damage Multiplier” gives you a single number to compare builds, representing the combination of your CRIT and DMG Boosts.
- Optimize: Adjust inputs to see how different relics would affect your build. Aim for a good balance, especially between CRIT Rate and CRIT DMG. Our hsr relic optimizer guide can provide more context.
Key Factors That Affect Your Build
- Main Stat Choices: Choosing between ATK%, SPD, CRIT Rate, or CRIT DMG on the Body and Feet pieces is often the most impactful decision for a build.
- Substat Quality: High rolls on valuable substats (like CRIT Rate/DMG) can make a huge difference. A piece with mediocre main stats can be amazing if its substats are perfect.
- Relic Set Bonuses: 2-piece and 4-piece bonuses from relic sets provide powerful effects that are essential for maximizing a character’s potential.
- Light Cone Synergy: The passive ability of a Light Cone can provide massive stat boosts or unique damage effects that should be factored into your build.
- Character Traces: Don’t forget the bonus stats unlocked in a character’s Traces, which provide significant amounts of CRIT Rate, ATK%, or other stats.
- Team Composition: Buffs from support characters like Bronya or Tingyun can heavily influence your ideal stat distribution. A character receiving a large ATK buff might benefit more from building CRIT DMG.
Frequently Asked Questions (FAQ)
A 1:2 ratio (e.g., 70% CRIT Rate, 140% CRIT DMG) is generally considered the most efficient for maximizing average damage. However, some characters with built-in CRIT Rate buffs may prefer a higher CRIT DMG focus.
This depends on the character. Hyper-carries who take many turns benefit greatly from SPD. If you can reach important SPD breakpoints (like 134) through substats, ATK% boots can provide more raw damage per hit. Using an hsr build calculator helps model both scenarios.
A well-built DPS character at level 80 will typically aim for 3,000+ ATK. This can vary based on their kit and whether they receive ATK buffs from teammates.
This calculator is a manual tool to help you understand build mechanics and compare specific gear pieces. A full hsr relic optimizer can automatically scan all your relics to find the absolute best combination, but this tool is faster for quick comparisons.
This is a fixed rule in Honkai: Star Rail’s relic system. The Head and Hands relics always have a fixed flat main stat, making the other four pieces (Body, Feet, Planar Sphere, Link Rope) the core of build customization.
SPD breakpoints are specific Speed values (e.g., 121, 134, 143) that allow a character to take an extra action in certain cycles of the Memory of Chaos. Reaching these is a key goal in build optimization.
It’s calculated as (1 + (Total CRIT Rate * Total CRIT DMG)) * (1 + Total DMG Boost). This provides a single, unified metric to compare the combined power of your offensive stats, making it easier to see if a change is truly an upgrade.
You can find them in-game by going to the character’s “Details” screen. Make sure to subtract the stats provided by the light cone and relics to find the true base values for use in the hsr build calculator.
Related Tools and Internal Resources
Explore our other tools and guides to further enhance your Honkai: Star Rail experience:
- Honkai Star Rail Damage Calculator: A detailed tool to calculate final damage numbers against specific enemies.
- HSR Relic Guide: An in-depth guide on the best relic sets for different character archetypes.
- Seele Build Guide: A comprehensive build guide for one of the game’s top DPS characters.
- HSR Stat Calculator: A general-purpose stat calculator for various in-game mechanics.