The commonly cited figure is about 20,000 Americans convert to Islam each year. That number appears in multiple online sources, but it is not a single official government count, so it should be treated as an estimate rather than a precise census figure.

What that means

  • It refers to annual conversions , not the total number of Americans who have ever converted.
  • There is no widely accepted official U.S. registry for religious conversion, so estimates vary.
  • Some sources also say a meaningful share of American Muslims are converts, but the exact percentage depends on the study and year.

Best reading of the data

If you want the shortest answer: roughly 20,000 Americans per year is the number most often repeated in public sources. Because the underlying data is limited, that figure is better understood as a broad estimate than a hard fact.

Caveat

Online pages and videos often repeat the same statistic without showing a clear methodology, so it is smart to treat it cautiously.