Date Difference Calculator
Get the precise difference between two dates as years/months/days plus total days and weeks.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator measures the span between two chosen dates, expressing the result in days, weeks, months, or years as needed, and correctly accounts for varying month lengths and leap years along the way. Unlike a simple subtraction of numbers, calendar math has enough irregularities that a dedicated calculator avoids common counting mistakes.
It's used for project planning and deadline tracking, working out how many days remain until an event, checking a contract or notice period length, or figuring out how long ago something happened. It's also a common building block behind other date-based calculators, like age or pregnancy timelines.
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