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Bryan Johnson engagement report

@bryan_johnson - 2.1M followers on X

Measured over 46 original posts from a 30-day window, last computed on September 1, 2026.

Engagement

Top 10% for its size
Per follower
0.176%
of 2.1M followers
Per impression
1.20%
305K views on a typical post
Reach
14.7%
of its followers see a post
Typical post
3.7K
interactions (median)
Saved
0.124%
378 bookmarks on a typical post
Posting rate
2.23/day
active 83% of days
Peak time
17:00 UTC
Thursday

A typical post picks up 3.7K interactions against 2.1M followers, an engagement rate of 0.176%. Measured over 46 original posts, its engagement rate beats 91% of 3,774 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 305K times each, and 1.20% of those impressions turn into an interaction. That is about 14.6% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.2 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 17:00 UTC, and Thursday is the busiest day of the week. Of the 46 posts sampled, 52% carry an image or video, 9% are part of a thread and 11% link out. The account's strongest tracked post pulled 101K interactions, about 28x its own typical post.

Measured over 46 original posts from a 30-day window, last computed on September 1, 2026.

Compared with accounts its own size

Bryan Johnson's engagement rate beats 91% of the tracked X accounts closest to it in follower count (3,774 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 62% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.176%, Bryan Johnson sits above the 50th percentile of the 36,654 accounts in this comparison. That places it in the above the median band, which runs 0.08% to 0.433%.

p100.002%
p250.012%
p50 (median)0.08%
p750.433%
p902.10%
p99160.5%
Engagement rate as a share of followers, across the 36,654 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 106,977 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.002%
25th percentile0.012%
50th percentile0.08%
75th percentile0.433%
90th percentile2.10%
99th percentile160.5%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 17:00 UTC, and Thursday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 17:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 6%Busiest hour: 17:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%51K
01:00 UTC-2%52K
02:00 UTC-3%50K
03:00 UTC-4%53K
04:00 UTC-6%43K
05:00 UTC-4%42K
06:00 UTC-4%48K
07:00 UTC-5%52K
08:00 UTC-4%61K
09:00 UTC-3%70K
10:00 UTC-2%72K
11:00 UTC-3%78K
12:00 UTC-2%86K
13:00 UTC-2%94K
14:00 UTC-4%97K
15:00 UTC-2%101K
16:00 UTC-3%98K
17:00 UTC-2%91K
18:00 UTC-1%85K
19:00 UTC-1%80K
20:00 UTC-1%74K
21:00 UTC-1%66K
22:00 UTC-1%57K
23:00 UTC-2%52K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Thursday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 5%Busiest day: Thursday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+4%231K
Monday0%288K
Tuesday-2%278K
Wednesday-1%251K
Thursday-1%245K
Friday-3%253K
Saturday+3%227K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Best tweets

  • Aug 15, 202628x their median

    https://t.co/Wma9jFMlaN

    95K4.7K5473634.0M viewsView on X
  • Jun 9, 202623x their median

    This is biblical. A woman in her eighties. Ten years into Alzheimer's. Hadn't spoken a full sentence in five years. Takes one, 5 gram dose of psilocybin. She slept 19 hours and woke up and spoke for hours about her life, recognized family and held real conversations. She regained bladder control after five years, walked on her own. and dressed herself. Gains held for weeks.

    75K8.6K1.3K6494.5M viewsView on X
  • Dec 11, 20249.8x their median

    On @netflix Jan 1 2025 is the year of don’t die https://t.co/RJosMclnJb

    31K1.8K2.2K76413M viewsView on X
  • Aug 20, 20266.7x their median

    I got a dog. Dog owners have about a 24% lower risk of dying early. What should I do now? https://t.co/eOqo1zZowZ

    20K2844.1K4491.6M viewsView on X
  • Aug 6, 20265.6x their median

    I know some of you find me insufferable sorry about that

    17K1.9K1.4K5811.3M viewsView on X
  • Jul 21, 20265.5x their median

    Being mean is bad for your health. A single hostile interaction: + locks you in a cortisol penalty box for 60-90 min + suppresses recovery capacity + elevates your heart rate Kindness conserves your energy resources.

    18K1.5K5413261.0M viewsView on X
  • Jul 31, 20265.4x their median

    Kate’s period blood is in my -80 °C freezer. Around 10 mL. https://t.co/OdLxO9qyJu

    14K4723.4K1.9K8.2M viewsView on X
  • Aug 30, 20264.9x their median

    Kate’s period will start any minute now…. I’ve been waiting for 34 days. This is historic; the most measured menstrual cycle in history. What we’ve measured so far: > 408 min of brain data > 10k blood glucose readings > 48,960 core body temp readings > 136 photos of her body > much more.. see below In total, 14 million data points. Full list of what we’re measuring: > core body temp via ingested pill > pain threshold > grip strength > photograph of the body > body thermal temperature > blood pressure > weighing menstrual blood > cortisol > blood glucose > DNA methylation > oral microbiome > stool microbiome > urine metabolites for hormones > stool microbiome > vaginal microbiome > cervical mucus > sleep > wearable > resting metabolic rate > metabolism. > techno-tampon, for lady boners > reaction time > skin biological age > brain with Kernel > breast measurement > urine concentration > hormone concentration > weight > nutrition proud of @_katetolo for becoming the world's most measured woman

    17K2965333478.3M viewsView on X
  • Aug 4, 20264.8x their median

    Best article I've read in the Times in years https://t.co/FJV3wDoRXn https://t.co/LZyvo6cUtA

    16K6633692282.8M viewsView on X
  • Jul 20, 20263.7x their median

    Getting diagnosed with an incurable disease is the best thing to happen to me in a long time. My project shifted overnight from longevity staples to disease resolution and frontier biotech. We have so many awesome things cooking.

    13K261704105764K viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

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Reading these numbers

A typical post picks up 3.7K interactions against 2.1M followers, an engagement rate of 0.176%. Measured over 46 original posts, its engagement rate beats 91% of 3,774 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 305K times each, and 1.20% of those impressions turn into an interaction. That is about 14.6% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.2 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 17:00 UTC, and Thursday is the busiest day of the week. Of the 46 posts sampled, 52% carry an image or video, 9% are part of a thread and 11% link out. The account's strongest tracked post pulled 101K interactions, about 28x its own typical post.

What is Bryan Johnson's engagement rate on X?
Bryan Johnson (@bryan_johnson) has an engagement rate of 0.176%, based on the median interactions across 46 original posts from the last 30 days against 2,080,564 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.176%, Bryan Johnson sits above the 50th percentile of the 36,654 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @bryan_johnson have real engagement?
Its engagement rate beats 91% of the tracked X accounts closest to it in follower count (3,774 accounts), which puts it in the top 10% for its size group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @bryan_johnson post?
Most posts go out around 17:00 UTC, and Thursday is its busiest day, at roughly 2.23 posts per day across the measured window.

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