Age Calculator - How Old Am I

How old am I — exactly? Enter your date of birth and get your precise age in years, months, weeks, days, hours, and even seconds. Age Calculator is a fast, all-in-one tool for birthdays, official forms, and life milestones.

LIVE AGE TICKER
Watch your exact age update in real time, down to the second. See total elapsed days, weeks, and hours since you were born.

AGE & DATE TOOLS
- Age calculator by date of birth (years, months, days)
- Age difference calculator — compare two birthdays side by side
- Date add/subtract calculator for deadlines and planning
- Working days calculator (excludes weekends and holidays)
- Leap year checker
- Half-birthday calculator with reminders

BIRTHDAY COUNTDOWN & REMINDERS
Track your next birthday and set reminders so you never miss one.

AI WISH & GREETING CARD STUDIO
Generate personalized birthday and anniversary messages for any relationship and tone, then design a shareable greeting card with photos and custom text.

HOME SCREEN WIDGETS
Add a live age widget or photo countdown widget to your home screen.

PET AGE CALCULATOR
Convert your dog's or cat's age into human years based on breed size.

FUN EXTRAS
- Planetary age (your age on Mars, Venus, Jupiter, Mercury)
- Japanese era calculator (Reiwa, Heisei, Showa, Taisho)
- Western zodiac sign and Chinese zodiac animal
- Life expectancy progress tracker and personal milestone goals

CONTACTS BIRTHDAY IMPORT (optional)
With your permission, Age Calculator can scan your contacts to find friends' and family birthdays. This is processed on your device — contact data is not uploaded or shared. You can decline this permission and add birthdays manually instead.

PRIVACY
Core age calculations work fully offline. Optional Google or email sign-in lets you back up and sync your saved birthdays across devices — this is not required to use the app.

Available in 21 languages with MM/DD/YYYY, DD/MM/YYYY, and YYYY/MM/DD formats.

Find out exactly how old you are Now!