Compatibility Calculator
A fun name-based compatibility score between two people. Purely for entertainment — not a real metric.
Compatibility (just for fun)
- Verdict
- Keep getting to know each other!
Updates live as you type
Frequently asked questions
It turns the two names into a number using a simple text hash and maps it to 0–100. The same pair of names always gives the same score.
No — it is purely for fun. Real relationships depend on communication, values and effort, none of which a name can capture.
By design. The score is deterministic, so the same two names produce the same result every time rather than a random number on each visit.
Yes, slightly, because the names are combined in order before hashing. Swapping them can give a different score — all part of the fun.
"Alex" and "Sam" score 13%. Swap the order, and it changes.
Combine "Alex" and "Sam" into "alexsam," run it through this calculator's hash function, and the result is 13% — squarely in the "keep getting to know each other!" band. Reverse the order to "Sam" and "Alex" instead, and the combined string becomes "samalex" — a different sequence of characters fed into the identical hash function, which can (and often does) produce a different score. Same two people, same tool, a genuinely different number depending purely on typing order.
What's actually happening under the hood
Let's be completely clear up front: this is just for fun, not a real metric of relationship compatibility. It doesn't measure feelings, values or anything meaningful about two people — it converts the combined names into a number via a text hash and maps that number onto a percentage, in the long tradition of name-based love calculators from the early internet. Real compatibility comes from communication, shared values, respect and effort, none of which any calculator can judge.
Why the same pair always gives the same score
The score is deterministic: the same two names, entered in the same order, always produce the identical result. That makes it shareable and repeatable — no risk of a worse score on a second visit out of curiosity, and something concrete to compare notes on with whoever tried it with you. Order matters because the names are joined in sequence before hashing, which is itself a small, fun detail worth noticing and debating.
Use it as an ice-breaker, a party game, or harmless entertainment at a get-together — the kind of thing everyone knows is silly but tries anyway. For other novelty tools built the same deterministic, shareable way, the dice roller and random number generator work on the identical principle.