Date Difference & Age
Days, weeks, and a years/months/days breakdown between two dates (set the start to a birthday to get an age).
9,654
Total days
1379.1
Weeks
26y 5m 6d
Breakdown
Find the number of days between two dates, or calculate an age, right in your browser. Useful for deadlines, anniversaries, and planning.
How to use Date Calculator
- Pick a start date.
- Pick an end date, or use today.
- Read the difference in days, weeks, months, and years.
- Adjust either date to recalculate.
Frequently asked questions
Can I calculate someone's age?
Yes. Set the start date to a birth date and the end date to today to get the age in years, months, and days.
Does it account for leap years?
Yes. The calculation uses actual calendar dates, so leap years are handled correctly.
Is my data stored?
No. Everything is calculated locally in your browser; nothing is saved.
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