Tool 06 · Mii compatibility calculator
Tomodachi Life Personality Matcher
Score any two Miis on the four-axis personality system in 30 seconds. Picks the right Mii pairings before you invest hours in failed confessions. Free, no signup, share-friendly link encoding.
4personality axes
5compatibility tiers
30sper pairing
sharevia URL
Score two Miis
Pick where each Mii sits on the four personality axes. Behaviour and Attitude carry the most weight — they\'re the strongest predictors of friendship and romance.
How it works
The scoring system, explained
Compatibility is calculated as a weighted similarity score across the four personality axes. The weights are based on observed patterns in Tomodachi Life: Living the Dream:
- Behaviour (35% weight) — the single biggest factor. Cooperative-with-cooperative or independent-with-independent pairings click; mismatched pairings rarely become close friends.
- Attitude (35% weight) — the biggest deal-breaker when mismatched. Down-to-earth paired with very quirky is the hardest relationship in the game.
- Movement (15% weight) — affects how the relationship feels (lively vs. quiet) but rarely whether it succeeds.
- Speech (15% weight) — similar to Movement; mostly cosmetic for compatibility purposes.
Each axis can differ by 0–4 points (5-point scale). Each axis\'s similarity (0–100%) is multiplied by its weight, then summed. The total is your compatibility score.
Five compatibility tiers
| Score | Tier | What it means |
|---|---|---|
| 85–100% | 💞 Soulmates | Confessions land easily. Marriage very likely. |
| 65–84% | 💕 Great match | Strong compatibility. Minor friction. |
| 45–64% | 🤝 Good friends | Solid friendship, mixed romance prospects. |
| 25–44% | ⚡ Challenging | Significant friction. Adjust traits or accept slow progress. |
| 0–24% | 🌪️ Polar opposites | Rarely workable without personality intervention. |
How to use the result
- Before creating Miis: Score the pairing you have in mind. If it scores below 45%, consider tweaking one Mii\'s personality before locking in the design.
- For existing Miis: Open each Mii\'s profile in-game, note their current trait positions, and run them through the matcher. Low scores explain why a relationship has stalled.
- For relationship planning: If a low-scoring pair is non-negotiable (your favourite characters, for example), adjust traits from the in-game personality menu to bump the score above 45%. Even small adjustments on Behaviour and Attitude help.
Personality Matcher · FAQ
How the matcher works, accuracy, and how to apply results in-game.
How does the Tomodachi Life Personality Matcher work?
Pick traits for two Miis on the four personality axes — movement, speech, behaviour, attitude — and the matcher scores their compatibility on a 0–100% scale. Behaviour and Attitude are weighted more heavily, mirroring the in-game patterns where these two axes dominate friendship and romance outcomes.
Is the matcher accurate to the actual game?
It reflects the observed patterns from how Tomodachi Life: Living the Dream handles compatibility — matched Behaviour and Attitude axes lead to faster bonding, while polar opposites on these axes are the strongest predictor of relationship friction. We weight the four axes to match this. Treat the score as a strong heuristic for which pairings will succeed, not as a guarantee.
What do the compatibility tiers mean?
85–100% Soulmates: confessions land easily, marriage very likely. 65–84% Great match: strong compatibility, minor friction. 45–64% Good friends: solid friendship, mixed romance. 25–44% Challenging: significant friction. 0–24% Polar opposites: rarely workable without personality adjustments.
Can I share a matcher result with friends?
Yes — every result has a "Copy share link" button that encodes both Miis' traits into the URL. Send the link to a friend and they see exactly the pairing you scored. No account, no signup.
How do I change a Mii's personality after creating them?
In-game, open the Mii's profile from the apartment building and look for the personality option. The trait sliders match the same four axes in this matcher. Adjusting personality takes effect immediately but can disrupt existing relationships — see our personality chart guide for the full system.