This calculator is a statistical estimate, not a census count of available partners. It combines official demographic datasets with a transparent independence model so each filter can be inspected and challenged.
The headline uses the selected target pool as the denominator. If the user is looking for men, the percentage is out of UK adult men aged 18+. If they are looking for women, it is out of UK adult women aged 18+. If they choose any gender, it is out of all UK adults aged 18+.
The cascade multiplies the target-gender base by age, height, body type, income, education, ethnicity, orientation, availability, children, marriage history, and baldness filters. The app also shows the all-adult percentage underneath the headline when the target denominator is only men or only women.
estimated matches = UK adults aged 18+ x target gender share x each selected filter probabilityUK adult population, target-gender denominator, and exact single-year age shares.
Preferred ethnic-group filter.
Target height range using sex and age-band mean heights with a normal-distribution model.
Minimum annual income filter for male targets.
Minimum annual income filter for female targets.
Minimum education filter.
Preferred BMI category filter for male targets.
Preferred BMI category filter for female targets.
Must be single / not living with partner filter.
Compatibility adjustment for heterosexual, gay/lesbian, and bisexual selections.
The largest limitation is correlation. Income, age, education, region, ethnicity, and relationship status are not independent in real life. The calculator currently multiplies each filter independently because official public tables rarely provide the full joint distribution needed for a dating-market model.