Free Engagement Rate Calculator for Instagram, TikTok, LinkedIn, X, YouTube, Threads, and Bluesky

What it does: calculates the engagement rate of a post or a profile on Instagram, TikTok, LinkedIn, X, YouTube, Threads, and Bluesky. Type the likes, comments, shares, saves, views, and followers the app shows, and the rate appears as you type, by followers and by views or impressions, with the formula and your numbers in it. Then it compares your rate with named, dated studies: Rival IQ (Quid) 2026, Socialinsider 2026, and Buffer 2026, recounting your numbers the way each study counts, so both numbers in a comparison mean the same thing.

Who it is for: social media managers, creators, and agencies who report engagement or check a post against the market, and site owners who want their own engagement rate calculator page. Each network has its own address (?network=tiktok, ?network=linkedin), so one page can serve every "{network} engagement rate calculator" search.

What you get: use it free in the live preview above, or take the whole tool: a one-page site for any static host with no server, no database, and no API keys, the math in its own JavaScript module with unit tests, the benchmarks in one data file with the source of every number, ready to update when the next edition comes out, and HTML documentation on hosting, changing texts, colors, networks, and benchmarks, and embedding the tool in another page.

What you do: pick the network, choose one post or a profile average, and type the numbers. To host it yourself, upload the engagement-rate-calculator folder to any static host.

Features

• Seven networks on one page: Instagram, TikTok, LinkedIn, X, YouTube, Threads, and Bluesky, each with the fields that network shows (impressions and clicks on LinkedIn, subscribers on YouTube, quotes and bookmarks on X).
• One post, or a profile average from the totals of the last posts.
• Engagement rate by followers and by views or impressions, each with the formula filled in with your numbers.
• Benchmarks only from published studies, each with its source, year, median or average, sample, what it counts, and a link. Your numbers are recounted the way each study counts before comparing, with "above" or "below" and by how much.
• Honest gaps: Bluesky has no published engagement rate benchmark, and the page says so and compares interactions per post with Buffer's median instead.
• Counts typed the way the apps show them: 1,234, 1 234, 12.5K, 1.2M. Wrong values are explained at the field.
• Small rates keep their digits (0.031% on X), and missing followers or views are named instead of showing 0%.
• Private and fast: everything runs in the browser, nothing is sent anywhere, no sign-up, no ads. Lighthouse 100 for accessibility, best practices, and SEO.
• Works on a phone and with the keyboard, and fits a frame on any page.

Screenshots