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Date Difference

100% Free

Find the exact difference between two dates in days, weeks, months, and years.

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Contract duration, employment tenure, age difference between two people, or how long until (or since) a specific event.

What's the difference between this and Days Between Dates?

Date Difference gives a full breakdown — years, months, weeks, and days. Days Between Dates gives a single total day count.

Are end dates inclusive?

You can toggle inclusive/exclusive. Inclusive counts both the start and end day.

Is anything sent to a server?

No. All calculations run in your browser.

Count the total number of days between any two dates.

Add or subtract days, weeks, months, or years from any date.

Calculate working days between two dates, excluding weekends and holidays.

Generate a list of dates between two dates with custom formatting and step.

Calculate your exact age in years, months, and days from any birth date — plus next birthday countdown.

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