Two numbers, on purpose
Most influencer rate calculators give one price. This one gives two. The price-guide range comes from vendor guides such as Shopify's, one source per network and follower tier. The median comes from OpenSponsorship's paid deals: what brands actually paid creators of that size. The two are often far apart, and knowing both helps you negotiate. A creator may quote from the guide; your budget may sit closer to the median.
How the tiers work
Creators are grouped by followers: nano (1K-10K), micro (10K-100K), mid-tier (100K-500K), macro (500K-1M) and mega (1M+). Sources draw these lines slightly differently, so the calculator names its tiers and shows the one your number falls into. Under 1,000 followers no source gives a price, so you see the nano numbers with a warning.
What changes the price
The deliverable matters: on Instagram a Reel costs more than a static post, and on YouTube a dedicated video costs more than an integration. Usage rights and exclusivity add a share of the base price. Every adjustment the calculator applies is listed with its source, and the method explains which bound of each range it takes.