What is the recommended length of a primary school running track?

There isn't a universally standardized length for primary school running tracks. The length depends on the age and ability of the children, the available space, and the intended use (e.g., races, fitness activities). However, tracks for younger primary school children are often significantly shorter than standard 400m tracks. You'll commonly see lengths ranging from 50 meters to 100 meters or even shorter loops within a playground setting.