Age Calculator
Exact age in years, months and days, plus next birthday.
Your result
Age is counted in completed years, months and days between the two dates.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Age Calculator do?
Exact age in years, months and days, plus next birthday. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: how old am i exactly; days until birthday; age on a date.