Annapurna base camp trek route involves 7 to 12 days of adventure walk with a round trip of a total distance of 115 km / 72 mi. During the journey, you will be walking an average distance of 12 to 15 km (7-9 mi) on each day. Since there are different routes to traverse until Chhomrong and also the required number of days to accomplish the trek may vary, the total roundtrip distance also may differ to a certain extent.