Uma Musume Stamina Calculator
Calculate exact stamina requirements, simulate races, optimize training and plan breeding β the most complete free Uma Musume Pretty Derby tool suite.
UmaCalc is a free suite of Uma Musume Pretty Derby tools. The stamina calculator tells you the exact stamina you need for any race distance and running style; the race simulator predicts finishing position from your stats and skills; and the inheritance, training, affinity and skill tools cover every part of career-mode planning. Everything runs in your browser with no login and no download.
Stamina Calculator
Calculate exact stamina requirements based on race distance, running style and track conditions.
Try Now βRace Simulator
Predict race outcomes using your Uma Musume's stats and skill loadout before you commit a career run.
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Optimize breeding chains and factor inheritance for maximum stat gains and skill sparks.
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Plan efficient training routes and support-card combinations to reach your stat targets faster.
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Check compatibility and aptitude bonuses between parents to boost inheritance spark rates.
Try Now βSkill Database
Browse all skills with activation conditions, effects and tier rankings for every build.
Try Now βKey Facts
- Six free tools cover stamina, races, inheritance, training, affinity and skills
- Covers all distances: Sprint, Mile, Medium, Long and Dirt
- Works on mobile and desktop with no account and no install
- Available in English, Japanese, Korean and Chinese
- Formulas based on datamined game values, updated each major patch
Guessing your stats costs you races
Most trainers pour stat points into Speed and Power, then lose long-distance races because they run out of stamina in the final corner. The game never shows you the real number you need, and community spreadsheets are outdated, English-only or buried in Japanese wikis. You end up rerunning the same career and hoping.
Exact numbers for every race
Our tools turn the hidden formulas into plain answers. Enter your five stats, pick a distance and running style, and get the stamina target, an efficiency rating and specific skill recommendations in seconds. Then check the race simulator to see whether that build actually wins, and use the training and inheritance tools to reach the target faster.
Everything you need to train a champion
Career mode in Uma Musume rewards planning. The five core stats β Speed, Stamina, Power, Guts and Wisdom β interact with distance aptitude, running style and skills in ways the in-game UI hides. UmaCalc exposes those relationships so you can build with intent instead of trial and error.
How the tools work together
Start with the stamina calculator to find your target for a goal race. Feed the same build into the race simulator to confirm it finishes in the money. If it falls short, the training optimizer shows which facilities and support-card combos close the gap fastest, while the inheritance and affinity calculators plan the parents that pass down the factors you need.
Frequently Asked Questions
How much stamina do I need for long-distance races?
Long-distance races (2400m and above) generally need 800β1000+ effective stamina depending on your running style and Guts. Front Runners and End Closers need more than Pace Chasers. Use the stamina calculator for the exact number for your build.
Are these calculators accurate for the global and Japanese versions?
Yes. The formulas are based on datamined stat and skill values that are shared across versions. Where the JP and Global builds differ on a specific skill, we note it. We update after each major balance patch.
Do I need to create an account?
No. Every tool runs entirely in your browser. There is no login, no download and no paywall.
Which tool should I start with?
Start with the stamina calculator to find your race target, then the race simulator to test the build. Beginners should read the beginners guide first.