A growth strategy is only as good as the data under it. If you can't see which posts actually won you followers, you're guessing, and guessing is slow. These are the four numbers we tell every creator to watch, and why each one earns its place.
Overall Engagement Rate
Engagement rate is the fairest quick read on how a post did. The formula is simple: (likes + saves + comments) divided by your follower count at the time you posted.
Why divide by followers? Because a post from back when you had 500 followers will almost never match one you make at 50k, and that gap has nothing to do with the content. Say 1% of your followers see a given post: at 50k that's 500 people primed to engage, at 500 followers it's five. Dividing by follower count stops you unfairly penalizing the posts from your early days, posts that might do real numbers if you ran them today.
Followers
Every post is a shot at more followers, and that's the one that compounds. More followers means more reach on the next post, and a bigger warm audience that's already told you it wants what you make. Track the net follower change per post, not just the running total.
Highviz shows you exactly how many new followers each individual post brought in. We still don't get why most analytics tools skip this, it's one of the clearest signals you have. You'll find the incremental follower count sitting next to every post in your dashboard.
Reach
Reach answers a plain question: how many people actually saw you? For a single post, it's the number of unique accounts that saw it. For your account overall, it's everyone who saw anything of yours, a post, a reel, or just your profile.
Basic doesn't mean unimportant. If brand awareness is the goal, reach might be the only number that matters. A post can reach a big audience without pulling much engagement, and if you're chasing awareness rather than likes, that's a win, not a miss.
Swap followers for reach in that same formula and you get a different, often more honest read: how engaging the post was for everyone who saw it, followers or not. Reach-based rates run higher than follower-based ones. Across the accounts in our July 2026 dataset, the median reach-based engagement rate was 12.1%. Highviz is one of the few tools that calculates this for you, and it sits next to every post in your dashboard.
Likes to Follower Ratio
People have gotten sharp at spotting bought followers and fake engagement. Buying followers is an old trick, and published industry studies point to more fake-follower accounts around than ever. Any hint that your audience is inflated reads as a red flag, and it quietly wrecks your credibility with the real followers you're trying to reach.
The tell people look for is a low like-to-follower ratio. Ten thousand followers but ten likes a post? Most people will assume the followers were bought. Keep an eye on the ratio so your account never reads that way by accident.
A single platform for all your metrics
Over at Highviz, we've put all four of these numbers in one dashboard. Plenty of tools hand you a few raw metrics and leave the math to you. We do the calculating, so your time goes to the content instead of a spreadsheet.
We go past the standard metrics too. Highviz reads the actual content of each post and tells you which colors, faces, and objects tend to earn you engagement and followers. See the full feature list, or just connect your account and try it with our free trial.