Telepathy

Telepathy was the very basic ability to mentally communicate over small or vast distances with other individuals. Every Force user, Jedi or Sith, was able to use it. The range of telepathy itself is theoretically infinite, but the telepath must be able to sense the presences of those they wish to contact.
 * Level 01: 243 Miles (391 Kilometers)
 * Level 02: 267 Miles (429.7 Kilometers)
 * Level 03: 323 Miles (519.8 Kilometers)
 * Level 04: 416 Miles (669.5 Kilometers)
 * Level 05: 583 Miles (938.2 Kilometers)
 * Level 06: 875 Miles (1,408.2 Kilometers)
 * Level 07: 1,400 Miles (2,253.1 Kilometers)
 * Level 08: 2,381 Miles (3,831.8 Kilometers)
 * Level 09: 4,287 Miles (6,899.3 Kilometers)
 * Level 10: 8,145 Miles (13,108.1 Kilometers)

Every level above 10 doubles the range over the previous level.