Elapsed Time Calculator
Prorating
Due Date
18 or 21
How To Prorate
Period Start Date / Time:
Prorate Date / Time:
Period End Date / Time:
Cost for Full Period:
To use the Prorating Calculator:
Input the date and time of the start of the period in the format "1/1/2025 12:01:00 AM".
Input the prorate date and time.
Input the date and time of the end of the period.
Input the cost for the entire period.
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.
Start Date / Time is not in the correct format.
Start Date / Time is required.
End Date / Time is required.
Cost is required.
Prorate Date / Time is required.
End Date / Time is not in the correct format.
Cost is not in the correct format.
Prorate Date / Time is not in the correct format.