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🎂 Age Calculator
How old are you, precisely? Enter a birthdate and the calculator shows years, months, days down to the minute. Useful for documents, milestones, or just curiosity.
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Examples
Born 1990-06-15, today
Input
1990-06-15Output
35 years, 5 months, 4 days · ~13,000 days aliveAge on a specific date
Input
born 1988-03-22, on 2030-01-01Output
41 years, 9 months, 10 daysFrequently asked questions
Is my birthday timezone-aware?
Mostly no — dates are calendar dates, not exact moments. We compare in the local timezone you set.
How are months counted?
Civil months: born March 15 → on April 15 you are 1 month older. We do NOT treat all months as 30 days.
Why does my exact day count vary by a day depending on time zone?
Because the count is in days, and a date can span two calendar days depending on your timezone offset. The tool uses your browser timezone.
About this tool
Age Calculator runs entirely in your browser using standard Web APIs. No data is sent to any server. The source for this tool is in our public GitHub repository.
Related tools
- 📅 Date Difference — How many days, weeks, months between two dates? Plus workdays.
- 📅 Working Days Calculator — Count business days between two dates, excluding weekends and optional holidays.
- 🤰 Pregnancy Due Date — Estimate due date and current week from last menstrual period or conception date.
Why this tool
vs typical free web-tool sites
| 1vw | Typical free site | |
|---|---|---|
| Price | Free | Free |
| Signup required | No | Often (for premium features) |
| Ads inside the tool | No | Yes (banner + video) |
| Data sent to server | No (browser-only) | Yes (inputs analyzed for ads) |
| Total tools | 96 | Often <20 or scattered across sites |
| Bookmarkable URL per tool | Yes | Mixed |
| Loads in under 1s | Yes (static) | Often slow (ad tracking) |
| Multilingual | EN / ES / PT / FR / DE | Usually EN only |
| Open source | Yes | No |