Days between datesDays, weeks and months between two dates.Loading…
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Enter a date of birth and calculation date to see exact years, months and days, total days lived and the countdown to the next birthday.
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and calculation date
years, months and days
weekday and countdown
age = full years since birthremaining months and days use calendar boundariesdays to birthday = next anniversary − selected dateWorked example
A person born on 1 January 1990, calculated on 10 July 2026.
Yes. In a non-leap year the anniversary is clamped to the final day of February.
Yes, the calculation date may be today, in the future or in the past.
Months have different lengths, so exact age should not be calculated by dividing days by 30.
Available actions follow the calculator privacy policy. Sensitive inputs are never added to the page URL; an explicitly saved scenario stays local.
No. The calculation runs locally in your browser and is not stored in a database.
Exact calendar age is useful for documents, anniversaries, recruitment, sports categories and event planning.
