Planet Fitness gym growth
Chartr's bar chart drew 1.7K views on X: 0.8x its typical post and #18 of 23 Chartr charts we track by views. Read Oct 10, 2026.
After a new round of New Year's resolutions, Planet Fitness now has nearly 20 million members
Why it spread
The post spread mainly because it landed on a hot topic that week and drew an unusually high rate of quotes, even though its views of 1,690, likes of 6, reposts of 0, quotes of 1, and saves of 1 were modest and its likes were only 0.9x the account's typical 7.
What worked
- It tied the chart to a timely New Year's resolutions hook, which matched a hot topic that week.
- It used a simple bar chart to show a steady annual increase in Planet Fitness gym count, making the trend easy to grasp.
- It carried a source line and a branded look, which added credibility and identity even at medium design polish and medium self labelling.
What to borrow
We could pair our own data with a timely seasonal hook and a simple bar chart that shows a steady trend, then add a clear source line and our brand mark.
Careful
Do not over-read the small engagement numbers or assume the chart itself drove reach, since the quote rate was in the top quarter but the source reach was only in the bottom quarter and the post had no reposts.
Written by our analysis model from the measured numbers above, not by Chartr.
Make it yours
Your numbers, in this bar chart.
Starts from the real numbers of "Planet Fitness: Still Looking For More Gains" by Chartr. Replace every number with yours before you post. Make one like this, step by step
Free pictures carry a small "Made with ViralChart" line. That line is how other people find us.
API · Max
Use this chart via API
On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id feb74da9c6e3.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/feb74da9c6e3 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/feb74da9c6e3/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/feb74da9c6e3/render?view=1 | The draw-only view this page uses | Open |
| POST | /mcp | Tool get_chart_data with this id, for Claude, Cursor and other agents | Max |
curl -s https://viral-chart.com/api/v1/charts/feb74da9c6e3/data \
-H "Authorization: Bearer $VIRALCHART_KEY"claude mcp add --transport http viralchart https://viral-chart.com/mcp \
--header "Authorization: Bearer $VIRALCHART_KEY"60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.
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Questions people ask
How far did Chartr's "Planet Fitness gym growth" chart travel?
1,690 views, 6 likes, 0 reposts and 1 saves on X, read Oct 10, 2026. A normal post from @chartrdaily gets about 2.2K views.
What kind of chart is it?
A bar chart. Planet Fitness gym count shows steady annual increase.
Can I use Chartr's chart?
Use the format, not the picture. The chart, logo and design belong to Chartr. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.