Age Calculator
Enter any date of birth to find the exact age in years, months and days — plus total days lived and next birthday countdown.
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Frequently Asked Questions
How is age calculated exactly?
Age is calculated by finding the difference between the date of birth and the current date (or selected date). The calculator accounts for leap years, different month lengths, and gives the exact breakdown in years, months and days.
Can I calculate someone's age on a specific past or future date?
Yes — use the "Calculate Age As Of" field to set any date. This is useful for legal documents, historical research, or planning future milestones.
Is my date of birth data stored anywhere?
No. All calculations happen entirely in your browser. No data is ever sent to any server or stored anywhere.
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