Exact age. Comparisons. Dates. Weird milestones.

Age Calculator

Calculate your exact age, compare family ages, find someone’s age on a specific date, measure date differences and discover curious life milestones.

Calculate exact age

Enter a birth date to get exact age, days lived, next birthday and weird stats.

Compare ages

Add family members, friends or important people to see how old they are or would be today.

Name

Birth

Death optional

Name

Birth

Death optional

Age on a specific date

Calculate how old someone was or will be on a specific date.

Difference between dates

Calculate how much time passed between two dates in years, months, days, hours and minutes.

Life milestones

Find out when you reach 10,000, 15,000, 20,000 days alive and other curious milestones.

What you can calculate with this age tool

The SWS Universe age calculator lets you get an exact age from a birth date. In addition to years, months and days, it can also calculate complementary information such as days lived, next birthday, date differences and age on a specific date.

The tool is designed for simple and quick use: finding someone’s exact age, comparing ages between relatives or friends, checking how many days are left until a birthday or seeing how old someone was on a specific date.

Available modes

Calculate age: shows the exact age from a birth date to today.
Compare ages: lets you add multiple people and compare their current ages.
Age on a specific date: calculates how old someone was or will be on a selected date.
Difference between dates: shows the time between two dates.
Life milestones: helps review important dates related to age.

Additional results

Depending on the selected mode, the tool can also show curious details such as birth weekday, zodiac sign, approximate days lived, estimated sleep hours or playful equivalents such as dog or cat years. These values are approximate and intended as fun extra information.

Privacy

Calculations are performed on the page. If you choose to email yourself a result, the email address is used only to send that result, according to the site privacy policy.

Frequently asked questions

What does the age calculator calculate?

It calculates exact age in years, months and days. It also shows days lived, hours lived, minutes, seconds, next birthday and curious stats related to the birth date.

Can I compare ages of family members or friends?

Yes. Compare ages mode lets you add multiple people with name, birth date and optional death date to compare current ages, how old they would be today and differences between people.

Can I know how old someone was on a specific date?

Yes. Age on a date mode lets you enter a birth date and a reference date to calculate how old someone was or will be at that moment.

What are life milestones?

Life milestones show curious dates such as when someone reaches 5,000, 10,000, 15,000 or 20,000 days alive, plus the next birthday.

Do you store my birth dates?

No. In this version, dates and results are calculated in the browser. If you send a result by email, we store the email, consent and send log, but not birth dates or family data.