Uma Musume Inheritance Calculator
Calculate your expected stat gains and factor inheritance probabilities for the perfect training run.
Estimated Total Stat Gain
Total points across all attributes from inheritance events.
Stat Distribution Projection
Visual representation of potential stat distribution based on total stars.
| Factor Type | Star Level | Base Gain | Event Multiplier |
|---|---|---|---|
| Blue (Stats) | 3-Star | 21 Points | High |
| Blue (Stats) | 2-Star | 12 Points | Medium |
| Blue (Stats) | 1-Star | 5 Points | Low |
What is Uma Musume Inheritance Calculator?
The Uma Musume Inheritance Calculator is an essential tool for players of the popular mobile game "Uma Musume: Pretty Derby." In this game, the success of a training run is heavily dependent on the "Inheritance" system, where a trainee girl inherits stats, skills, and aptitudes from two parent characters. Using an Uma Musume Inheritance Calculator allows trainers to predict the starting stats and the potential gains during the critical April inheritance events of Year 2 and Year 3.
Who should use it? Every serious trainer aiming for S-rank or higher should utilize an Uma Musume Inheritance Calculator. Whether you are farming for 9-star blue factors or trying to optimize a specific distance aptitude with red factors, understanding the math behind the inheritance is key. A common misconception is that inheritance is purely random; while there is an RNG element, the base values are strictly determined by the star levels of the parents' factors.
Uma Musume Inheritance Calculator Formula and Mathematical Explanation
The mathematical model behind the Uma Musume Inheritance Calculator involves three distinct phases: Initial Inheritance, the Year 2 April Event, and the Year 3 April Event. The primary formula for blue factor stat gain is as follows:
Total Stat Gain = (Initial Stars × Multiplier) + (Event Stars × Compatibility Multiplier)
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| S_total | Total Blue Stars from Parents | Stars | 2 – 18 |
| C_factor | Compatibility Multiplier | Ratio | 0.8 – 1.2 |
| G_base | Initial Stat Gain | Points | 14 – 126 |
| G_event | Event Stat Gain (Expected) | Points | 10 – 150 |
Practical Examples (Real-World Use Cases)
Example 1: High-End Competitive Build
A trainer uses two parents, each with 9-star blue factors (total 18 stars) and a "Double Circle" compatibility. The Uma Musume Inheritance Calculator would show an initial stat boost of 126 points (18 stars × 7). During the Year 2 and Year 3 events, the high compatibility ensures a higher probability of triggering additional gains, potentially adding another 100+ points to the total.
Example 2: Budget Farming Run
A trainer uses a 6-star parent and a 3-star parent (total 9 stars) with "Circle" compatibility. The Uma Musume Inheritance Calculator predicts an initial gain of 63 points. Because the compatibility is lower, the event gains will be significantly less frequent, highlighting the need for better Uma Musume Tier List parent selection.
How to Use This Uma Musume Inheritance Calculator
Using the Uma Musume Inheritance Calculator is straightforward:
- Enter the total number of Blue Factor stars for Parent 1. This is the sum of stars across all five attributes.
- Enter the total number of Blue Factor stars for Parent 2.
- Select the Compatibility level (Triangle, Circle, or Double Circle) as shown in the game's selection screen.
- Review the "Estimated Total Stat Gain" to see the potential impact on your training run.
- Use the "Stat Distribution Projection" chart to visualize which attributes will benefit most.
Interpreting results: If your Uma Musume Inheritance Calculator shows a low initial bonus, you may want to reconsider your parent choices or focus on blue factor farming before attempting a high-rank run.
Key Factors That Affect Uma Musume Inheritance Results
1. Blue Factor Stars: The most direct influence. 3-star factors provide significantly more stats than 1 or 2-star variants.
2. Parent Compatibility: This hidden value determines the "Inheritance Rank." Higher compatibility increases the chance of inheriting white and red factors.
3. Grandparent Factors: Inheritance isn't just from parents; grandparents contribute to the pool of available factors.
4. Scenario Bonuses: Different training scenarios (like URA or Aoharu) have slight variations in how inheritance is processed.
5. RNG Variance: While the Uma Musume Inheritance Calculator provides expected values, the actual event triggers are probabilistic.
6. Unique Skill Levels: Green factors (Unique Skills) are inherited based on the parent's performance in their own training runs.
Frequently Asked Questions (FAQ)
No, the star level of the parent's factors is fixed. However, the trainee can develop their own 3-star factors regardless of the parents' stars if their stats are high enough (B rank or higher).
Compatibility primarily affects the *probability* of inheriting red and white factors during the April events, but it also has a minor influence on the consistency of blue factor triggers.
With 18 stars and perfect RNG, a trainee can gain over 250 total stat points from inheritance alone.
Red factors change aptitudes (e.g., Distance S). The calculator focuses on stats, but higher compatibility directly increases the chance of a red factor "rank up."
This happens if no factors were successfully triggered. Using an Uma Musume Inheritance Calculator helps you see that low compatibility makes this outcome more likely.
Yes, parents with higher ranks (SS, UG, etc.) generally have better compatibility mechanics with a wider range of trainees.
A 9-star parent is one where the character and both their grandparents all have 3-star blue factors in the same or different attributes.
The Uma Musume Inheritance Calculator uses the most accurate community-derived formulas, but in-game RNG will always cause slight variations.
Related Tools and Internal Resources
- Training Scenario Guide: Learn how different scenarios affect your final stats.
- Skill Inheritance Mechanics: A deep dive into how white factors are passed down.
- Best Support Cards: Optimize your deck to complement your inheritance gains.
- Blue Factor Farming Tool: Maximize your chances of getting 3-star factors.