Industry rule: $100 per 10,000 followers per post as a starting point, adjusted for engagement.
Nano (1K–10K): $10–$100/post. Micro (10K–100K): $100–$500. Macro (100K–1M): $500–$5,000+.
Higher engagement rates (3%+) justify premium rates — more engaged = more valuable audience.
~$100 per 10K followers as baseline. 100K followers × $10 CPM × engagement rate adjustments.