Umamusume Affinity Calculator

Calculate Your Umamusume Support Card Affinity

Use this tool to estimate the total affinity points your Support Card will accumulate based on initial bond, training sessions, events, and bond bonuses. Optimize your Umamusume training strategy!

Starting bond points for the Support Card at the beginning of a training turn. Typical max is 120.
The base number of affinity points gained when this Support Card is present in a training session. Default is usually 4.
How many times this specific Support Card participated in training sessions.
Sum of affinity points gained from character or Support Card specific events.
The "Kizuna Bonus" percentage from the Support Card's stats. This acts as a multiplier.

Affinity Contribution Breakdown

Chart illustrates the proportional contribution of each factor to the total accumulated affinity.

A) What is Umamusume Affinity (Kizuna)?

In the popular mobile game "Umamusume Pretty Derby," Affinity, often referred to as Kizuna (絆) or Bond, is a crucial metric that represents the bond level between your chosen Umamusume character and her various Support Cards. This Umamusume affinity is not just a number; it's a direct indicator of how effectively your Support Cards will assist in training and how likely their unique events will trigger.

Who should use this Umamusume Affinity Calculator?

  • Players aiming to optimize their training runs for maximum stat gains.
  • Those planning a specific build and wanting to ensure Friendship Training triggers.
  • New players trying to understand the mechanics of bond gain.
  • Veterans refining their strategies for competitive play.

Common Misunderstandings about Umamusume Affinity:

  • Character vs. Support Card Affinity: There are two main types. This calculator focuses on Support Card Affinity, which is essential for Friendship Training. Character affinity (with the main Umamusume) is a separate but related concept.
  • Exact Point Values: The game doesn't always show precise point gains, leading to guesswork. Our Umamusume affinity calculator aims to demystify these values.
  • Affinity Cap: Support Card affinity typically caps at 100 or 120 points, depending on the card and game updates. Reaching this cap maximizes bonuses.

B) Umamusume Affinity Formula and Explanation

The calculation for Umamusume affinity involves several additive and multiplicative factors. Understanding this formula is key to planning efficient training cycles.

The general formula used in this Umamusume affinity calculator is:

Final Accumulated Affinity = (Initial Affinity + (Base Training Gain × Number of Trainings) + Total Event Affinity) × (1 + Bond Bonus % / 100)

Let's break down each variable:

Variables for Umamusume Affinity Calculation
Variable Meaning Unit Typical Range
Initial Affinity The bond points a Support Card starts with at the beginning of a training turn or scenario. Points 0 - 120
Base Training Gain The base number of affinity points gained per training session when the Support Card is present. Points/session 2 - 6
Number of Trainings The count of training sessions where the specific Support Card was present. Sessions 0 - 99
Total Event Affinity The sum of affinity points gained from various character or Support Card specific events. Points 0 - 300+
Bond Bonus (%) The "Kizuna Bonus" stat found on a Support Card, applied as a percentage multiplier to accumulated affinity. % 0% - 60%+

This formula helps you predict your Umamusume affinity, allowing you to strategically decide when to train with certain cards or chase specific events.

C) Practical Examples Using the Umamusume Affinity Calculator

To illustrate how the Umamusume affinity calculator works, let's walk through a couple of scenarios.

Example 1: Early Game Support Card

  • Inputs:
    • Initial Affinity: 0 Points
    • Base Affinity Gain per Training: 4 Points/session
    • Number of Trainings with Card: 3 sessions
    • Total Affinity from Events: 5 Points
    • Support Card Bond Bonus: 10%
  • Calculation:
    Raw Training Affinity = 4 * 3 = 12 Points
    Total Pre-Bonus Affinity = 0 + 12 + 5 = 17 Points
    Bond Bonus Effect = 17 * (10 / 100) = 1.7 Points
    Final Accumulated Affinity = 17 + 1.7 = 18.7 Points (rounded to 19 Points in game)
  • Results: Approximately 19 Total Accumulated Affinity Points.
  • Interpretation: At this stage, Friendship Training (which usually requires 80 affinity points) is still far off. More trainings or events are needed.

Example 2: Mid-Game with Optimized Training

  • Inputs:
    • Initial Affinity: 20 Points
    • Base Affinity Gain per Training: 4 Points/session
    • Number of Trainings with Card: 10 sessions
    • Total Affinity from Events: 25 Points
    • Support Card Bond Bonus: 30%
  • Calculation:
    Raw Training Affinity = 4 * 10 = 40 Points
    Total Pre-Bonus Affinity = 20 + 40 + 25 = 85 Points
    Bond Bonus Effect = 85 * (30 / 100) = 25.5 Points
    Final Accumulated Affinity = 85 + 25.5 = 110.5 Points (rounded to 111 Points in game)
  • Results: Approximately 111 Total Accumulated Affinity Points.
  • Interpretation: With these inputs, the Support Card has easily surpassed the 80-point threshold for Friendship Training and is well on its way to max affinity, allowing for powerful stat boosts. This demonstrates the power of a high Umamusume affinity.

D) How to Use This Umamusume Affinity Calculator

Using our Umamusume affinity calculator is straightforward. Follow these steps to get accurate estimations for your Support Card bonds:

  1. Input Initial Support Card Affinity: Enter the current affinity points your Support Card has at the beginning of your calculation period. If starting fresh, input '0'.
  2. Enter Base Affinity Gain per Training: This is the default point gain from a single training session. The most common value is 4 points.
  3. Specify Number of Trainings with Card: Estimate or count how many times you plan for this specific Support Card to be present in training sessions.
  4. Add Total Affinity from Events: Sum up any affinity points you expect to gain from character or Support Card specific events.
  5. Input Support Card Bond Bonus (%): Find the "Kizuna Bonus" percentage on your Support Card's details screen and enter it here. This is a crucial multiplier for your Umamusume affinity.
  6. Click "Calculate Affinity": The calculator will instantly display your estimated total accumulated affinity points and a breakdown of contributions.
  7. Interpret Results: Pay attention to the "Total Accumulated Affinity Points." If it's 80 or higher, you're ready for (or already benefiting from) Friendship Training. The chart provides a visual breakdown of where your affinity is coming from.
  8. Use the "Copy Results" button to easily share or save your calculation details.

Remember, while this calculator provides excellent estimates for Umamusume affinity, actual in-game results can sometimes vary slightly due to rounding or unforeseen minor event triggers.

E) Key Factors That Affect Umamusume Affinity

Achieving high Umamusume affinity is a multi-faceted process influenced by several in-game mechanics:

  • Support Card "Kizuna Bonus" Stat: This is arguably the most impactful factor. A higher percentage bonus directly amplifies all affinity gains from training and events, making cards with strong Kizuna Bonuses invaluable for reaching Friendship Training quickly.
  • Presence in Training Sessions: Simply having a Support Card appear in a training session (even if you don't choose that training) contributes to its affinity. Actively training with a card present yields even more points.
  • Specific Support Card Events: Each Support Card has unique events that can trigger throughout a training scenario. Many of these events offer significant affinity point bonuses, crucial for boosting your Umamusume affinity.
  • Umamusume Character Events: The main Umamusume you are training also has events that can sometimes grant affinity to specific Support Cards, especially those related to her background or personality.
  • Training Type and Level: While the base gain is often 4, certain training types or specific scenario mechanics might subtly alter affinity gain. Higher training levels often mean more opportunities for Support Cards to appear.
  • Friendship Gauge Level: Reaching certain affinity thresholds (most notably 80 points) fills the Friendship Gauge, unlocking "Friendship Training." This isn't a direct affinity *gain* mechanism, but it's the primary *goal* of accumulating Umamusume affinity, as Friendship Training offers significantly enhanced stat gains and skill hints.
  • Support Card Rarity and Limit Break: Higher rarity and limit-broken Support Cards generally have better base stats, including higher Kizuna Bonuses and more impactful events, accelerating Umamusume affinity gain.

F) Frequently Asked Questions (FAQ) about Umamusume Affinity

Q: What is the maximum Umamusume affinity a Support Card can have?

A: Support Card affinity typically caps at 100 or 120 points, depending on the card and any specific game updates or scenario mechanics. Once reached, you'll maximize the benefits from that card.

Q: How does the "Kizuna Bonus" percentage work in the Umamusume Affinity Calculator?

A: The "Kizuna Bonus" is a multiplier. It increases the total affinity points accumulated from initial affinity, trainings, and events by the stated percentage. For example, a 20% bonus means you gain 20% more points on top of the base sum.

Q: Does a full Friendship Gauge give extra affinity points?

A: The "Friendship Gauge" fills as you accumulate affinity points (typically reaching 80 points to be considered "full"). Once full, it enables "Friendship Training," which provides enhanced stat gains and skill hints. It doesn't directly add *more* points to the affinity counter itself after it's full, but it's the critical threshold you're aiming for.

Q: What's the difference between character bond and support card affinity?

A: Character bond (or Kizuna) is between your trained Umamusume and other Umamusume characters, often affecting story progression and unique skills. Support Card affinity, which this Umamusume affinity calculator focuses on, is specifically the bond between your trained Umamusume and her equipped Support Cards, directly impacting training efficiency and Friendship Training.

Q: Are there any hidden affinity gains not covered by the calculator?

A: While the calculator covers the primary sources, very minor affinity gains can sometimes occur through rare random events or specific scenario bonuses that are difficult to quantify precisely. However, these are generally negligible compared to training, events, and bond bonuses.

Q: Why isn't my Umamusume affinity increasing faster?

A: Common reasons include low "Kizuna Bonus" on your Support Cards, not consistently training with the desired cards present, or missing out on key Support Card events. Review your card's stats and training choices.

Q: What's the optimal affinity to aim for?

A: The primary goal for any Support Card is to reach at least 80 affinity points to unlock Friendship Training. Beyond that, aiming for the maximum (100 or 120) will fully unlock all potential benefits and event triggers from the card.

Q: Can Umamusume affinity decrease?

A: Generally, Support Card affinity does not decrease during a training run. However, some very specific, rare event choices might have negative consequences, but this is uncommon for affinity itself.

G) Related Tools and Internal Resources

Enhance your Umamusume training experience with our other helpful resources: