How far was it along the Silk Road from Chang an to dunhuang?

The distance from Chang'an (modern-day Xi'an) to Dunhuang along the Silk Road is approximately 1,000 kilometers (about 620 miles). This route was a crucial segment of the Silk Road, facilitating trade and cultural exchange between China and Central Asia. Travelers typically took several weeks to traverse this distance, depending on the conditions and mode of travel.