About Us

Uma Musume Inheritance Calculator is a lightweight, mobile-first fan tool that helps you plan breeding routes in Uma Musume: Pretty Derby. Pick a target Uma, choose Parent A/B and their grandparents, and the score updates instantly with a clear mark (◎ / ○ / △ / ×) so you can compare options at a glance.

Why we built it

Inheritance planning can feel opaque. We wanted something transparent and fast: simple inputs, readable output, and a clear explanation of the scoring model right on the page, so new and veteran Trainers can iterate quickly.

What it shows

• Target snapshot (surface, distances, strategy, grade flags)
• Parents & grandparents selectors with real-time total
• Scoring notes so you know why a result is ◎ / ○ / △ / ×

What we care about

• Accuracy & clarity. Rules are documented in plain language so you can audit the result.
• Speed. Instant updates on mid-range phones.
• Accessibility. Keyboard-friendly inputs and readable typography.
• Respect for creators. This is an independent fan project and not affiliated with Cygames or other rights holders.

Roadmap

• Expand character lists and scenarios as the game evolves
• Smarter synergy tips and explanations
• Localization improvements

Say hello

Got feedback, a bug, or a feature idea? We’d love to hear it. The best way to reach us is the contact page.

Last updated: November 5, 2025