Yojana

Yojana (Skt.; Tib. paktsé; Wyl. dpag tshad) — a measure of length used in the traditional teachings.

In the Abhidharma teachings, one yojana is equivalent to 16,000 cubits (approx. 7,4 kilometers).
In the Kalachakra tantra, one yojana is equivalent to 32,000 cubits (approx. 14,8 kilometers).

Source

yojana (由旬). The distance covered by one day’s march of an army or by one day’s walk of a yoked bull. One yojana may equal 4 or 8 krośas, each krośa being the distance at which a bull’s bellow can be heard. The estimated distance of a yojana varies from 8 to 19 kilometers. {one yojana equals eight miles}