Everyday tool
Date Difference Calculator
Count the number of days between two calendar dates.
Choose a start date and end date to calculate the number of elapsed days between them. The endpoints are not both counted as full days.
Use the date difference calculator
Your entries are calculated in this browser. Avoid relying on estimates for decisions that require exact figures.
Frequently asked questions
Does this count both dates?
No. It calculates elapsed calendar days between the dates. Add one if you need an inclusive count of both endpoints.
Does order matter?
No. The calculator reports the absolute difference even if the end date is earlier.