TLDR: Posting hourly does not predict growth. Three per-post numbers do: engagement rate, saves plus shares, and new followers per post. Track them weekly, compare to your own median, and post only as often as those numbers hold steady.
Mydrop data, September 2026: on accounts connected to Mydrop with at least 8 posts, accounts posting under once a week had a median engagement rate of 7.0%, 1 to 3 posts a week 3.1%, 3 to 7 a week 1.5%, and 7 or more 0.7%. That is a correlation, not a cause: smaller accounts post less and carry higher rates. Method in the Mydrop social media benchmarks.
If you have ever added a fourth post a day and watched reach drop, you have seen the problem. Volume is something you control, so it feels like progress. But the platform does not reward effort. It rewards what people do with the post.
Mydrop's September 2026 data points the same way. On accounts with at least 8 posts, the median engagement rate was 7.0% for accounts posting under once a week, 3.1% for 1 to 3 posts a week, 1.5% for 3 to 7 and 0.7% for 7 or more. That is a correlation, not a cause, because smaller accounts post less and carry higher rates. But it does show that posting more does not lift each post.
Metric 1: engagement rate per post, against your own median
Engagement rate is interactions divided by reach or followers (pick one and stay with it). The number only means something against your own history.
For a rough scale, in Mydrop's data, the median engagement rate was 3.1% on Instagram, 3.0% on TikTok and 1.1% on Facebook. The middle half of Instagram posts ran between 1.1% and 6.7%, so a 2% post is normal and a 7% post is a good day.
How to use it: compute your median over the last 20 posts. Flag posts above and below it. Look at what the top three have in common.
Metric 2: saves plus shares per post
Likes are cheap. Saves and shares need a reason. They tell you the post was useful or worth passing on, and they are the actions most likely to put your content in front of new people.
How to use it: add saves and shares for each post and divide by reach. Compare formats. In the same data, carousels ran 10% above an account's typical post, while a link in the caption cost 7%. See the benchmarks for the method.
Metric 3: new followers per post
If growth is the goal, measure it per post, not per month. Take followers gained on the day of a post and the next two days, then divide by the posts you published in that window. It is imperfect, but it shows which content brings strangers in.
If you posted three times in a week and gained 30 followers, that is 10 per post. If you posted eight times and gained 36, that is 4.5 per post. The second week was a lot more work for a worse return.
Use a three-column check every Friday
| Metric | This week | Your 20-post median | Verdict |
|---|---|---|---|
| Engagement rate | Up, flat or down | ||
| Saves plus shares per reach | Up, flat or down | ||
| New followers per post | Up, flat or down |
If two of the three fall when you raise frequency, drop back. If they hold, you have room to post more.
Fix timing and format before you add volume
Two cheap changes beat extra posts. In our data, weekday made almost no difference (every day sat within 2% of the median), but posting between midnight and 6 am was 17% below the median. Avoid that window. Then try a carousel in place of a single photo. For more, see why best time to post is a vanity metric.
Ignore these numbers for now
Follower count, impressions and posts per day feel good and predict little. Impressions rise when you post more, even if nobody cares. Followers can be bought or inflated by a giveaway. If a number goes up without a change in saves, shares or conversations, treat it as noise until the three metrics above agree.
Let the tool do the counting
Hand-tracking three metrics across four platforms is where most plans stall. Mydrop's performance analytics shows native metrics per platform, and scheduled reports can send the weekly check to you or a client. If you work alone, the solo manager metrics plan is a good companion.
Run a two-week frequency test
Keep your usual posting rate for two weeks and record the three metrics. Then change the rate by one post a week for two more weeks. Compare the Friday tables. Start with Mydrop free if you want the numbers pulled together for you.
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