@marthe_koster
Explore Education Creatorsβ‘ Currently In Holland β‘ Married β’ Mum β’ Ocean Lover Yoga Teacher Parent Coach Oncology Nurse β Co Founder: @_breakingthedistance
Outreach This Creator For FreeFollowers
4.5K
Following
1.7K
Total Posts
Engagement Rate
5.07%
Avg Likes
198
Avg Comments
Reaching 4.5K followers on Instagram, Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ is a Fitness creator based in Netherlands. The account posts mainly around fitness and business topics. The account has published 643 posts, currently less than one post a week. Posts average 198 likes and 28 comments, an engagement rate of 5.07%.
Tracked in the InstME index, Marthe_koster is a Fitness account with 4.5K followers and a back catalogue of 643 posts.
Against 5,196 Fitness accounts with 1Kβ10K followers in the InstME index, Marthe_koster's 5.07% engagement rate lands in line with the median of 5.26%.
The audience comments once per 7 likes on average, an unusually discussion-heavy audience.
Marthe_koster currently publishes less than one post per week.
Estimated sponsored-post value
$63β$120
Based on 4.5K followers and a 5.07% engagement rate, a single sponsored post by Marthe_koster is worth an estimated $63β$120. This is a modeled range, not a quoted rate, actual pricing varies by niche, content format, usage rights and exclusivity.
Audience (estimated)
Est.Predominantly men Β· mostly 18β34
Typical for Fitness creators in Netherlands, modeled from the niche, not measured for this account.
Content Focus
Primary: Fitness
Secondary: Business
| Metric | Marthe_koster | Cohort median |
|---|---|---|
| Engagement rate | 5.07% | 5.26% |
| Average likes | 198 | 145 |
| Average comments | 28 | 11 |
| Posts per week | 0.15 | 0.25 |
Median values from 5,196 Fitness accounts with 1Kβ10K followers in the InstME index, refreshed Jul 19, 2026.
| Metric | Marthe_koster | Cohort median |
|---|---|---|
| Engagement rate | 5.07% | 4.96% |
| Average likes | 198 | 130 |
| Average comments | 28 | 13 |
| Posts per week | 0.15 | 0.3 |
Median values from 567 accounts in Netherlands with 1Kβ10K followers in the InstME index, refreshed Jul 19, 2026.
Get advanced audience quality signals, growth trend analytics, historical snapshots, and top-performing content patterns.
No credit card needed
Last reviewed: Sep 5, 2026
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ is a fitness creator based in Netherlands on Instagram, with 4.5K followers.
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ posts on Instagram as @marthe_koster.
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ has 4,468 followers on Instagram (4.5K) as of Sep 5, 2026.
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ's engagement rate is 5.07%, calculated from average likes and comments per post relative to followers. That is in line with the median of 5.26% for Fitness accounts with 1Kβ10K followers in the InstME index.
Posts by Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ average 198 likes and 28 comments.
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ posts less than once a week on average.
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ is registered as a creator account on Instagram.
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ is categorized as a fitness and business account in the InstME index, based on the profile's bio and Instagram category across 643 posts.
643
28
Posts / Week
0.15
Growth Score
100 / 100
Last Post
3 days ago
Engagement
3%
Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ's profile places the account in Netherlands. Location comes from public profile signals, so treat it as the account's stated market rather than a confirmed address.
A sponsored post from Marthe Koster-Thomas π³οΈβππ³οΈββ§οΈ is estimated at $63 to $120. This is a model based on audience size and engagement, not a rate card, so real pricing is set by the creator.
