What is the required fitness standard for entering the Royal Marines?

To meet the required fitness standard for entering the Royal Marines, candidates must complete a 3-mile run within 18 minutes. This specific standard is designed to assess cardiovascular endurance, stamina, and overall physical fitness, all of which are critical attributes for the demanding nature of Royal Marine training and operations.

The 3-mile distance reflects a balance of endurance and speed, requiring recruits to maintain a pace that is physically challenging but achievable with proper training. Successfully completing this run within the specified time demonstrates a baseline level of fitness, which is essential not only for the initial selection process but also for the rigorous physical challenges that recruits will face throughout their training and future service.

Other potential fitness tests, such as runs of different lengths or swimming events, do not align with the established requirement for enlistment, making them less relevant in this context.