Fitness | Lifestyle | ISTJ ♊️ 📍 Beijing 💪 Always under construction 🧠 Logic over emotion
Outreach This Creator For FreeWilliam Cui is a Fitness creator on Instagram, tracked in the InstME index with 15.9K followers. Content spans fitness and lifestyle. To date William Cui has posted 622 times, currently less than one post a week. Posts average 659 likes and 9 comments, an engagement rate of 4.21%.
William_cui is a Fitness account on Instagram with 15.9K followers and 622 published posts.
Compared with 6,024 other Fitness accounts with 10K–100K followers in the InstME index, William_cui's 4.21% engagement rate is above the median of 2.04%.
Roughly one in 73 likes comes with a comment, an audience that mostly engages through likes.
Recent posting activity averages less than one post per week.
William_cui comes in at 94/100 for audience quality, with 5% of followers estimated low-quality or inactive, a strong signal of genuine reach.
Estimated sponsored-post value
$220–$410
Based on 15.9K followers and a 4.21% engagement rate, a single sponsored post by William_cui is worth an estimated $220–$410. This is a modeled range, not a quoted rate, actual pricing varies by niche, content format, usage rights and exclusivity.
Audience Health
~5% of followers look low-quality or inactive.
View Full AuditThere’s more behind this audience. See what the full audit reveals.Audience (estimated)
Est.| Metric | William_cui | Cohort median |
|---|---|---|
| Engagement rate | 4.21% | 2.04% |
| Average likes | 659 | 523 |
| Average comments | 9 | 23 |
| Posts per week | 0.68 | 0.28 |
Median values from 6,024 Fitness accounts with 10K–100K followers in the InstME index, refreshed Jul 19, 2026.
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Last reviewed: Sep 11, 2026
William Cui is a fitness creator on Instagram, with 15.9K followers.
William Cui posts on Instagram as @william_cui.
William Cui has 15,881 followers on Instagram (15.9K) as of Sep 11, 2026.
William Cui's engagement rate is 4.21%, calculated from average likes and comments per post relative to followers. That is above the median of 2.04% for Fitness accounts with 10K–100K followers in the InstME index.
Posts by William Cui average 659 likes and 9 comments.
William Cui posts less than once a week on average.
InstME's audience-quality analysis estimates about 5% of William Cui's followers are low-quality or inactive, giving an audience-quality score of 94/100.
William Cui is registered as a creator account on Instagram.
William Cui is categorized as a fitness and lifestyle account in the InstME index, based on the profile's bio and Instagram category across 622 posts.
Avg Comments
9
Predominantly men · mostly 18–34
Typical for Fitness creators, modeled from the niche, not measured for this account.
Content Focus
Primary: Fitness
Secondary: Lifestyle
Engagement
2.95%
Anna Węklar • Stretching • Szpagat • Matcha Girl
@annaweklar
Followers
47.4K
Engagement
0.76%
A sponsored post from William Cui is estimated at $220 to $410. This is a model based on audience size and engagement, not a rate card, so real pricing is set by the creator.
