Age Calculator
Free Online Age Calculator - Calculate Your Exact Age Instantly
Enter your birthdate to calculate your exact age in years, months, weeks, days, and hours. Also shows Korean age and next birthday countdown.
💡 What is Age Calculation?
International age counts from 0 at birth and increases by 1 on each birthday. Korean age (traditional) starts at 1 at birth and increases by 1 every January 1st. Since June 2023, South Korea officially uses international age for legal purposes.
📝 How to Use
- Select your date of birth from the date picker
- International age and Korean age are calculated automatically
- View your age in months, weeks, days, and hours
- Check how many days until your next birthday
🔧 Age Tips
- Since June 2023, Korea uses international age legally
- International age = Current year - Birth year - (if birthday has not passed: 1)
- Korean age = Current year - Birth year + 1
- Legal age for voting, military service uses international age
- Some Asian countries still use traditional age counting
📚 Local Method & Assumption Guide
Formula Logic
Core formulas use public finance, loan, ratio, and unit conversion standards.
Source Scope
References follow publicly available standards and country-level common practices.
Assumptions
Taxes, fees, rates, and limits vary by region and institution.
Result Interpretation
Use this result as a baseline scenario. For decisions, compare with your lender quote and local tax treatment.
Locale Preset
Currency: USD
Units: imperial
Tax logic: US payroll estimate
Regulatory Note
This tool uses regional presets for estimation. Contract terms and legal limits may differ by lender, bank, or local law.
Recommended Next Actions
- Compare at least 2-3 local providers before final submission.
- Re-check fees, tax treatment, and prepayment clauses in writing.
- Run a stress scenario with +1-2% interest and lower income.
Before a real financial decision, confirm with local institution rules.