Free business calculator
Customer Spend Quartile Segmenter
Split customer spend values into four clear, even-sized bands.
- Instant results
- Private in your browser
- PDF report included
Use the result well
A clear answer, with the assumptions visible
These recommendations turn the result into an operational next step without hiding the inputs behind a score.
- 1
Replace names with private customer codes before pasting.
- 2
Use the same spend period for every customer.
- 3
Use bands for insight, not different service quality.
How this tool works
- Sort the valid spend values.
- Use simple-statistics to find the 25th, 50th, and 75th percentiles.
- Count customers in four bands and show each band’s average.
Build it in Bookify
Set up client care Use this with every client
Keep forms, notes, and follow-up together in Bookify.