What should you charge for a sponsored post? This free calculator gives you an honest rate range from two numbers you already know: follower count and engagement rate — with the full formula shown, not hidden.
How the math works: it starts from a baseline of about $10 per 1,000 followers, then scales by your engagement band. High-engagement accounts (5%+) earn a 1.5x multiplier; average engagement stays at 1x; low engagement drops to 0.5–0.7x. The output is a range, because real deals depend on niche, usage rights, and deliverables.
The honest part: this is a starting point for negotiation, not a quote. B2B and finance niches command more, lifestyle less; exclusivity, whitelisting, and ad usage all add cost. Use the range to anchor your media kit, then adjust with experience.
Free, no sign-up, runs in your browser. If you are growing an account toward brand-deal territory, the services catalog lists audience-building options with real per-1K pricing and refill terms shown up front.