Calculate exact age in years, months, and days — from any date of birth.
Whether you're filling out legal forms, planning a birthday celebration, or just curious, our age calculator gives you precise age in years, months, and days. Simply enter your date of birth — get instant results. No sign-up, no fees.
Manual age calculation is error-prone — especially with leap years and month boundaries. Our tool handles all complexities: February 29 birthdays, month-end adjustments, and exact day differences.
Legal documents: Contracts, visas, and applications require exact age. Medical records: Accurate age for dosage calculations. School enrollment: Check grade eligibility. Retirement planning: Years until retirement age. Fun milestones: 10,000 days alive or half-birthday planning.
❓ How accurate is the calculator?
Exact to the day, accounting for leap years and time zone differences (based on UTC).
❓ What if I was born on Feb 29?
In non-leap years, we use Feb 28 as your birthday for age calculations — standard practice.
❓ Can I calculate age for past or future dates?
Future dates will show negative age — useful for countdowns! You can also calculate age at a specific date (pro version).