Doctor Market Fit

Doctor Market Fit

Measure Product-Market Fit with the PMFit Scale

Version 4 just dropped, including Go To Market Signals

Jeroen Coelen's avatar
Jeroen Coelen
Feb 04, 2026
∙ Paid

🥁 DRUMROLL FOR V4🥁

How to use

  • The position on the x-axis says something about how strong a signal is related to product-market fit.

  • 1000 followers on Instagram in itself are not a strong sign of product-market fit, whereas 10 customers happy in a full price pilot are.

  • Indeed, those 1000 followers might convert to paid pilots, but we don’t know what the conversion rates are, and if they will be happy. Therefore, it’s a weaker proxy.

Free PDF version

Pmfit Scale By Dr Market Fit
1.17MB ∙ PDF file
Download
Download

Who should read this?

Share

🔥 Jeroen’s Hot Take 🔥

This is version 4 of my product-market fit scale. I feel this might not be the final version. Here’s why, and what options I considered.

User's avatar

Continue reading this post for free, courtesy of Jeroen Coelen.

Or purchase a paid subscription.
© 2026 Jeroen Coelen · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture