Date Difference Calculator
Choose a start and end date to see the difference in days, weeks, and months.
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How to Use
- 1Select the start date.
- 2Select the end date.
- 3The difference in days, weeks, and approximate months is calculated automatically.
Frequently Asked Questions
Are the start and end dates both counted?
The difference is calculated between the two exact dates you select, giving you the precise number of days, weeks, and months between them.
Why is the month count only approximate?
Months have different lengths (28–31 days), so a day-based difference doesn't divide evenly into whole months — the result is rounded to give you a useful estimate.