Power levels

Civilian: 10-20

Academy student: 10-50

Genin: 50-200

Chunin: 200-500

Special Jonin: 500-1000 generally in a specific stat

Jonin: 500-1000

Anbu: 1000-2000

Kage: 2000-unknown, I don't want to put an end number, because it could be anything