Love Compatibility Calculator

This tool is a deterministic string function dressed as a compatibility test, and the mechanism is worth stating plainly. Both names are lowercased and stripped to the letters a to z, then concatenated. The routine counts how many times each letter of the word LOVES occurs in that combined string, producing five counts. Adjacent counts are added pairwise, collapsing five numbers to four, then three, then two, and those two digits are read as a percentage. A 32-bit hash of the combined string then shifts the figure by between minus ten and plus ten, and the result is clamped between 5 and 99 so no pair ever sees zero. The five subscores for passion, communication, trust, humor and adventure are offsets derived from the character lengths of the two names, nothing more. Two properties follow directly. The letter counts are symmetric, but the hash reads the concatenation in order, so entering the names the other way round can move the percentage. And because the input is spelling, Robert and Bob return different scores for the same person, which is the clearest sign that nothing is being measured. Relationship science points elsewhere. John Gottman's observational work at the University of Washington, running since the mid-1980s, found that couples who stayed together sustained roughly five positive interactions for every negative one during conflict, and identified criticism, contempt, defensiveness and stonewalling as the corrosive patterns, contempt being the strongest single predictor of dissolution. A 2020 analysis led by Samantha Joel, pooling more than eleven thousand couples across dozens of longitudinal datasets, found that relationship-specific perceptions such as felt appreciation predicted satisfaction far better than any individual trait.

Comparing the numeric value of two names is an old form of divination. Greek and Roman practice included onomancy, in which the letters of names, doubling as numerals, were summed and the totals compared, a technique applied to the outcome of contests as well as to the fortunes of couples. The same machinery underlies Hebrew gematria and Greek isopsephy, both attested well before the common era. What none of those traditions produced was a percentage; the habit of scoring affection out of a hundred belongs to the twentieth century and to the printed magazine quiz. The specific algorithms behind name love tests come from schoolyard games rather than from any documented author. FLAMES, whose letters stand for friends, lovers, affectionate, marriage, enemies and siblings, was played widely in South Asia and beyond in the later twentieth century by striking out letters common to two names and counting round the acronym; the related American game MASH assigned life outcomes the same way. Counting the letters of LOVE or LOVES across a combined pair of names is a variant of that family. When these games moved onto the web in the mid to late 1990s as form-and-button love calculators, the arithmetic was reimplemented many times over, which is why no single origin, author or year can honestly be given for the version used here. The genuinely researched side of the subject is younger still: the Gottman Institute was founded in 1996.