How many people in the world are 13 years old?

As of 2023, there are approximately 1.2 billion people aged 10 to 19 years globally. While it's difficult to pinpoint the exact number of 13-year-olds, this age group typically represents around 10% of the total population in that range. Therefore, an estimated 120 million people are likely 13 years old worldwide. However, these figures can vary based on demographic factors and population growth rates.