18+ influencer database · updated 31 Oct 2026
WordPress plugin
A plugin for your own WordPress site. It calculates an engagement rate and a sponsorship fee from numbers you type. The sums match the free tools here. Version 1.0.0. GPLv2 or later.
The file is a zip of the plugin folder. WordPress installs it from Plugins, Add New, Upload Plugin. It does not phone this site, and it does not sign in to Instagram, TikTok, or YouTube.
Install
- Download the zip.
- In WordPress, open Plugins, then Add New, then Upload Plugin, and choose the file.
- Activate Creator Campaign Calculators.
- Edit a page, add a Shortcode block, and paste
[crcalc].
What it calculates
Engagement rate divides likes and comments by followers, by views, or by reach. Instagram by views also counts shares. By reach it also counts saves. TikTok counts likes, comments, and shares, and leaves saves out. An Instagram rate by followers is compared with a working screen for that follower size. The screen is a question, not a count of fake accounts.
The sponsorship fee is median views ÷ 1,000 × CPM × a niche factor. If views are left blank, a stated share of followers is used, and the result says so. The low and high marks are 70% and 140% of that sketch. An optional quoted fee is shown as a CPM. Currency changes the symbol only. It does not convert money.
Default CPMs are 12 for an Instagram Reel, 8 for a TikTok video, and 25 for a YouTube integration. Those are planning defaults, not a survey of signed deals.
Shortcodes
[crcalc]shows both calculators.[crcalc_engagement]is the engagement rate.[crcalc_fee]is the sponsorship fee.
Attributes, all optional: platform (instagram, tiktok, or youtube), method (followers, views, or reach), niche (general, beauty, fashion, fitness, food, or gaming), currency (USD, GBP, or EUR), and title. YouTube applies to the fee. The engagement calculator treats it as Instagram.
The same sums run in the browser on the engagement rate calculator and the rate calculator. Nothing you type in the plugin is sent here.