Age Calculator
Calculate exact age in years, months, days, hours
Free exact age calculator — down to the second
Toololis Age Calculator finds your exact age in years, months, days, hours, minutes, and seconds. Enter any birth date. Optionally pick an "as of" date to calculate age on a past or future day. Works for people, pets, plants, or historical events. Fully private — your birth date never leaves your browser.
What you'll see
- Primary age — Years + months + days, how we normally say it
- Total months — Useful for baby tracking or subscription anniversaries
- Total weeks / days / hours / minutes / seconds — For curiosity or fun facts
- Day of week — The weekday you were born
- Next birthday countdown — Exact days until your next birthday
How to use this tool
- 1
Enter your birth date
Use the date picker to select the day you were born. The tool supports any date from 1900 to today.
- 2
Optionally change "as of"
By default, age is calculated as of today. Change this to find out how old you were on a specific past date, or how old you'll be on a future date.
- 3
Read your exact age
See your age in years + months + days, plus total weeks, days, hours, minutes, and even seconds. The next-birthday countdown shows how long until you level up.
Interesting age milestones
- 1 billion seconds ≈ 31.7 years
- 10,000 days ≈ 27.4 years
- 20,000 days ≈ 54.8 years
- 1 million minutes ≈ 1.9 years
- 100,000 hours ≈ 11.4 years