Age & Date Calculators

Free online tools to calculate your exact age, find date differences, and discover what day of the week any date falls on. No sign-up required — all calculations run in your browser.

Age Calculator

Calculate your exact age in years, months, and days. Find total days lived, weeks lived, days until next birthday, and the day you were born.

Date Difference Calculator

Calculate the exact duration between any two dates in years, months, days, total days, total weeks, and total months.

Day of Week Calculator

Find out what day of the week any date falls on — past, present, or future. Useful for historical lookups and planning.

Why Use Our Calculators?

All calculations are performed in your browser — no data is ever sent to a server.
Accurate leap year handling following Gregorian calendar rules.
Instant results — no page reloads, no waiting.
Completely free with no sign-up required.