Definition
P50 is the median usage level where half of customers use less and half use more.
Why it matters
The median is a stable anchor for pricing design and helps avoid overfitting to heavy users.
Pricing implications
If P50 is far below included usage, you may be giving away value. If it is above, upgrades may be too early.
Measurement tips
Use a stable trailing window and segment by plan, region, and customer size.
Checklist
- Calculate P50 by plan and cohort.
- Compare P50 to P75 and P90.
- Use P50 to set included limits.
- Recompute after major product changes.
- Exclude free trials from paid P50.
- Validate P50 with revenue impact modeling.
- Monitor shifts over time.
- Align P50 limits with the value metric.