Name Combination Checker
Enter a first and last name together to estimate how many Americans share that exact full name — the 'how many of me' number.
Free · No sign-up · Your search is never stored. Estimates from SSA birth records (1880–2024) and U.S. Census surname data.
How the full-name estimate works
No public database counts exact full-name pairs — that would be a privacy problem. So the estimate uses the standard statistical method for this question: it multiplies the frequency of the first name by the frequency of the surname against the U.S. population (341.8 million). If 1 in 112 Americans is named James and 1 in 126 carries the surname Smith, the expected number of James Smiths is the population divided by (112 × 126) — roughly 24,000 people. Our methodology page shows the full formula.
The independence assumption — and its limits
The formula treats first names and surnames as independent, which is a good approximation for most combinations. It is weaker where the two are culturally linked: a strongly ethnic first name paired with a surname from the same origin will usually have more real bearers than the formula suggests, because the two frequencies are correlated in the same communities. Treat the result as a well-founded estimate, not a census of your namesakes.
What makes a full name rare?
Only one side needs to be unusual. A very common first name with a rare surname (James + an uncommon family name) can produce a combination shared by a handful of people — and the reverse is just as true. Check each side separately with the rarity checker and the surname checker to see which half of your name is doing the work.