What is engagement rate, and how do you calculate it?

One name, several definitions

No network publishes one definition that the others follow. These are the ones we found on each network’s own help pages, read on 10 October 2026.

Two details. Pinterest’s page lists saves, Pin clicks and outbound clicks in the definition of the rate, and adds carousel card swipes and secondary creative clicks in its separate Engagements metric, so its two lists differ. And TikTok’s definition sits in a reporting page for creator marketing; the Creator Academy page on TikTok analytics lists views, likes, comments and shares, with no rate.

The formulas people use

As formulas, not benchmarks:

• By views or impressions: interactions ÷ views (or impressions) × 100. This is the form TikTok, LinkedIn, X and Pinterest use.
• By reach: interactions ÷ reach × 100. Meta defines reach as the accounts that saw something at least once, and calls it an estimate.
• By followers: interactions ÷ followers × 100. None of the network definitions above divides by followers, so this is a convention rather than a network’s metric.

Whichever you use, say which interactions you included. A rate with saves in it and a rate without them are not the same number.

A worked example

These are made-up numbers, to show the arithmetic. A post has 120 likes, 15 comments and 9 shares: 144 interactions. It was seen by 3,000 accounts (reach), was shown 4,800 times (views or impressions), and the account has 8,000 followers.

One post, three honest rates. Neither is wrong, and they answer different questions: how engaging was it to the people who saw it, per showing, and against my audience.

A second trap is averaging. Post A has 90 interactions on 1,000 views: 9%. Post B has 20 on 4,000 views: 0.5%. The average of the two rates is 4.75%. Pooled, it is 110 ÷ 5,000: 2.2%. Which you report changes the figure, so say how you computed it.

Why numbers from different places don’t match

• The numerator differs. X counts clicks and follows, TikTok’s definition counts three actions, and Pinterest counts saves.
• The base differs. Views are plays, impressions are showings, reach is people. Instagram’s current insights lead with views and viewers, so reach and impressions have a story of their own.
• Some numbers are estimates. LinkedIn says its post analytics are estimates, and Meta says reach is estimated.
• Your own actions may count. LinkedIn says your own views and engagements are counted towards your post analytics.

What to do

1. Choose the question first: how did the post hold the people who saw it (interactions ÷ views), or how big was the response next to my audience (interactions ÷ followers)?
2. Take raw counts from each network’s own analytics and compute one formula yourself, so that networks line up.
3. Write the definition next to the number, in a report or a sheet.
4. Compare with someone else’s figure only when their formula is the same. We publish no benchmark here, and the networks’ pages we read give none.

Where to find the raw counts: Instagram, TikTok, YouTube and LinkedIn.

Engagement rate and Mellow Hub

Mellow Hub’s cabinet shows views and likes for each published post, and post reach where a network supplies it. It does not show comments, and it does not compute an engagement rate. Use the raw counts from the networks, or from Hub, and apply the formula you chose.

Hub is paid: plans start at $19 a month (Solo), after a 7-day trial with a card on file that costs nothing if you cancel before it ends, and a monthly plan's first month is 20% off. Publishing is unlimited on every plan, under a fair-use ceiling that stops automated floods (900 publications a month on Solo). One publication is one post on one account, so a post sent to five networks counts as five. There are no automatic overage charges.