According to multiple sources, a normal sperm count ranges from 15 million to more than 200 million sperm per milliliter of semen. The World Health Organization (WHO) defines a normal sperm count as 39 million sperm per ejaculate or more. However, its important to note that sperm count is just one factor in male fertility, and other factors such as sperm motility and morphology also play a role in determining fertility. Its also worth noting that there is some variation in what is considered a "normal" sperm count, and different sources may provide slightly different ranges.