Age Calculator
Find the exact age of a person, relationship, business or item. Pick dates with the calendar or type DD/MM/YYYY — results appear instantly.
🔒 Free · No Upload · 100% Private
What can you calculate?
👤 PersonExact age in years, months and days. Total days lived, hours and next birthday countdown.
💑 RelationshipHow long you've been together. Total days, weeks, months and next anniversary date.
🏢 BusinessDays since opening, total months in operation and next business anniversary.
📦 ItemAge of any purchase, device, vehicle or asset since its purchase or creation date.
Frequently Asked Questions
How do I calculate my exact age? +
Select the Person tab and enter your date of birth using the 📅 calendar picker or by typing DD/MM/YYYY. Today's date is already set as the end date. Your exact age, total days, weeks, months and hours appear instantly — plus the day of the week you were born on.
How do I calculate relationship duration? +
Switch to the Relationship tab and enter your relationship start date. The calculator shows exactly how many years, months and days you have been together, plus the day of the week your relationship started and your next anniversary countdown.
Can I calculate the age as of a past or future date? +
Yes. The "As of Date" field defaults to today but you can change it to any date. This lets you calculate age at a specific point in the past or future — useful for legal, historical or planning purposes.
How is the age calculated exactly? +
The calculator counts full calendar years, then remaining full months, then remaining days. This matches how age is legally defined in most countries. Total Days is the exact number of days between the two dates.