How far can a human walk per day in a desert?

In a desert, a human can typically walk about 12 to 20 miles (19 to 32 kilometers) per day, depending on factors like temperature, terrain, hydration, and individual fitness levels. Extreme heat and lack of water can significantly reduce this distance, as exhaustion and dehydration become critical concerns. Walking during cooler parts of the day, such as early morning or late afternoon, can help increase the distance covered. It's crucial to stay hydrated and take regular breaks to avoid heat-related illnesses.