How the free engagement rate calculators on Likes.io compute their numbers: the formula for each platform, where each number comes from, and how long fetched data is cached. The page publishes no benchmark or average to compare a rate against.
These pages are about orders and delivery. This page covers only the engagement rate calculators.
Each calculator adds up likes and comments (and, on TikTok, shares) and divides by one denominator. The Instagram and TikTok calculators work on numbers you type in; the YouTube calculator reads a channel's public videos.
ER (%) = ((average likes + average comments) / followers) × 100A rate divided by followers is one way to look at a post, not how Instagram ranks it: Instagram says each part of the app (Feed, Stories, Explore, Reels) uses its own ranking (Instagram Ranking Explained).
ER (%) = ((average likes + average comments + average shares) / average views) × 100TikTok says its For You feed ranks videos for each viewer from signals such as that viewer's own interactions, and that follower count is not a direct factor in its recommendation system (How TikTok recommends videos #ForYou), so the calculator divides by views, not followers. TikTok lists likes, comments and shares among the interactions its recommendation system reads, but publishes no weighting between them, so each one counts once.
ER (%) = ((average likes + average comments) / average views) × 100Videos whose counts cannot be read, or that report no view count, are left out, and the three averages are taken over the videos that remain.
The Instagram and TikTok calculators do the arithmetic in your browser on the averages you enter. They fetch no account data, so the rate is as current as the numbers you type.
The YouTube calculator looks up the channel and its video list through ScrapeCreators, or through Apify when that provider is switched on, and reads each video's views, likes and comments through ScrapeCreators. It needs no YouTube login.
Provider responses are cached, so a result can be older than the moment you run the tool. With ScrapeCreators, channel details and per-video counts are kept for 15 minutes and the video list for 2 minutes; if ScrapeCreators returns an empty list, the last list it returned, up to 8 minutes old, is used. With Apify, channel details are kept for 6 hours and the video list for 30 minutes.
The /instagram/<username> pages and the Instagram, TikTok and YouTube audits apply the same formulas to an account's 12 most recent posts or videos, with one difference: the TikTok lookup divides likes plus comments by views and does not count shares. They read the data through HikerAPI (Instagram) and ScrapeCreators (TikTok and YouTube), and their results are cached and fetched again after 24 hours.
To cite a formula, name the calculator and link its page, for example:
“Source: Likes.io, Instagram / TikTok / YouTube Engagement Rate Calculator. URL: [relevant tool page URL].”
The page holds formulas and data sources only. It publishes no benchmark, average or ranking to quote.
Plain-text summaries of the whole site for AI crawlers are at /llms.txt and /llms-full.txt; for the formulas they point back to this page.
This page does not cover:
/buy-{slug} page.