Free business calculator
Average Revenue Confidence Range Calculator
Show a likely range around an average sale, visit, or daily revenue figure.
- 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
Use observations measured with one consistent money definition.
- 2
Check for seasonality and unusual one-time sales.
- 3
Collect more comparable observations to narrow the range.
How this tool works
- Use the entered sample average and spread.
- Get a Student t critical value from jStat.
- Apply the standard error to form a two-sided confidence range.
Build it in Bookify
Set up pricing Put the range into a real plan
Keep prices, payments, and reports together in Bookify.