When to Conceive a Baby to Share Michael Phelps's Birthday
Michael Fred Phelps II is an American former competitive swimmer. He won more Olympic medals than any other athlete, a total of 28 medals across four Olympic Games.
Plan a Baby Born on Michael Phelps's Birthday (June 30)
How to Plan a Baby for Michael Phelps's Birthday (June 30)
If you dream of your child sharing a birthday with Michael Phelps on June 30, the optimal conception date is around October 7 of the preceding 38-week gestation cycle (266 days before birth).
Use the interactive slider above to adjust the gestation period between 35 and 41 weeks and observe how the conception timing match (%) and clinical delivery window probabilities change in real time.
When Was Michael Phelps Conceived?
Michael Phelps was born on June 30, 1985. Based on the standard human gestation period of 38 weeks (266 days from ovulation/conception), he was most likely conceived around October 7, 1984.
While only about 4%–5% of babies arrive on their exact due date, nearly 60% are born within a ±7-day window around their target date when conceived during the peak 5-day fertile window.
More Positive Icons Born in June
Explore other inspiring figures who share the same birth month and conception season.
Film & Acting
Angelina Jolie
Film & Acting
Morgan Freeman
Film & Acting
Meryl Streep
Film & Acting
Natalie Portman
Film & Acting
Tom Holland
Film & Acting
Johnny Depp
Film & Acting
Nicole Kidman
Film & Acting