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THE FEUTEX TOOLKIT

Subscription Proration

Allocate a fixed billing-period charge to a chosen number of service days.

Business workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaProrated charge = period charge × billable days / period days

How to use this tool

  1. Enter the measurements and assumptions in the labeled fields.
  2. Run the calculation and check the units in the output.
  3. Copy or download the result.

Try this example

{"charge": 30, "period": 30, "used": 12}

Accuracy and scope

Simple daily proration; does not interpret subscription terms, refunds, taxes or calendar billing rules.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.