How many people around the world share your birthday, in millions?

The answer of 19 million is a reasonable estimate for the number of people who share a specific birthday worldwide. This figure is derived from statistical data on population distribution and birth rates. Since there are approximately 365 days in a year, the global population can be divided by this number to provide an average estimate of individuals born on any given day.

Considering the current global population, which is over 7 billion, dividing this number by 365 suggests that roughly 19 million people could indeed share a birthday. This estimate accounts for the varying birth rates across different regions and populations, making 19 million a plausible figure for the average daily birthday count.