How to use the Love Compatibility
- Enter both first names.
- Optionally add both birth dates.
- Read the compatibility score and its breakdown.
- Treat it as a bit of fun — the research note below matters more.
How the calculation works
The score is computed deterministically: character codes from both names are combined, mixed with any date values, and reduced into a 0–100 range. The same inputs always produce the same output, which is the only property that makes it feel meaningful. There is no evidence linking name letters or birth dates to relationship outcomes.
What does predict outcomes is well studied. Longitudinal research from the Gottman Institute identifies criticism, contempt, defensiveness and stonewalling as the strongest negative predictors, with contempt the single most corrosive. Positive predictors include a high ratio of positive to negative interactions during conflict, shared values around money and children, responsiveness to bids for attention, and the ability to repair after arguments. None of that is calculable from a name.
Deterministic hash of combined name characters and date values mapped to 0–100Source: Entertainment algorithm; relationship predictors per Gottman longitudinal research on marital stability.
Worked example
Two names entered into the calculator.
- Character codes from each name are summed.
- The two sums are combined and mixed.
- The result is reduced modulo 101.
- The same pair always returns the same score.
A stable score between 0 and 100 — consistent, repeatable, and with no predictive validity whatsoever.
Frequently asked questions
Is this scientifically valid?+
No. It is entertainment. Nothing in names or birth dates predicts relationship success.
Why does it give the same answer every time?+
The algorithm is deterministic, so identical inputs always produce identical output.
What actually predicts a lasting relationship?+
Conflict repair, responsiveness, shared values and the absence of contempt — all well documented in longitudinal research.
Does swapping the name order change the score?+
No. The inputs are combined symmetrically.
Last reviewed August 31, 2026. We review this page whenever the underlying formula, tax year, published rate or standard changes.