The standard distance of a half marathon is 21.0975 kilometers, which is equivalent to 13.1 miles. This distance challenges runners to balance speed and endurance over a significant race length, making it an ideal stepping stone for athletes transitioning from shorter races, like 10K events, to the full marathon. The half marathon has grown in popularity, attracting both seasoned runners and beginners aiming to reach a personal goal. Frequently held in various locations worldwide, these races promote community involvement and healthy lifestyles.