How To Prorate

Period Start Date / Time:
Prorate Date / Time:
Period End Date / Time:
Cost for Full Period:

To use the Prorating Calculator:
  1. Input the date and time of the start of the period in the format "1/1/2025 12:01:00 AM".
  2. Input the prorate date and time.
  3. Input the date and time of the end of the period.
  4. Input the cost for the entire period.
  5. Press the "Prorate Now" button.
  • A time of Midnight is assumed if no time is specified, so 6/1/2025 to 6/7/2020 would only be 6 days.
  • This calculator prorates based on the actual number of days, and not weeks or months.