How to Use
- 1.
Enter the date of birth in the first date field.
- 2.
Keep the calculation date as today or choose any past or future date.
- 3.
Review the exact age in years, months, and days.
- 4.
Check total days lived, total weeks lived, day of birth, and next birthday countdown.
- 5.
Use the copy button to save or share the age summary.
- 6.
Reset the calculator when you want to start again with a different date.
Features
Exact age in years, months, and days
Calculate age on today's date or any custom date
Total days, weeks, and months lived
Day of birth detection
Next birthday date and countdown
Leap-year birthday handling
Copyable age result summary
Private browser-based calculation
Frequently Asked Questions
How do I calculate my exact age from date of birth?+
Enter your date of birth and the date you want to calculate age on. The tool counts completed years, months, and remaining days between the two dates.
Can I calculate age on a future or past date?+
Yes. Change the Calculate age on field to any valid date after the birth date to see how old someone was or will be on that date.
Does the age calculator show total days lived?+
Yes. The result includes total days lived, total weeks lived, and completed months, along with the normal years-months-days age format.
How are leap-year birthdays handled?+
If someone was born on February 29, the next birthday countdown uses February 28 in non-leap years so the result remains practical.
Is my date of birth stored?+
No. The calculation runs in your browser and the tool does not upload or store your date of birth.
Can I use this for official documents?+
The result is useful for quick checking, but official forms may require identity documents or a date method specified by the organization.
About this tool
Free Age Calculator
Use the free WebToolsEdge Age Calculator to calculate exact age from date of birth in years, months, and days. Enter a birth date, choose today's date or any other calculation date, and instantly see a clear age breakdown, total days lived, total weeks lived, total months completed, day of birth, next birthday date, and days remaining until the next birthday. This online age calculator is useful when a form asks for exact age, when you need to check age eligibility, when you are preparing documents, or when you simply want a quick birthday countdown. Instead of counting manually across different month lengths and leap years, the tool calculates the difference between two calendar dates and presents the result in a readable format. The calculator works with both current and custom dates. Leave the Calculate age on field set to today to find your current age, or choose a past or future date to answer questions like "How old was I on this date?" or "How old will I be next year?" This makes it helpful for school records, applications, event planning, insurance forms, family milestones, and general date-based planning. Age is shown as completed years, completed months, and remaining days. The tool also displays total days and weeks lived, which can be useful for personal milestones, fun facts, or date comparisons. For people born on February 29, the next birthday countdown uses February 28 in non-leap years so the result remains practical and easy to understand. All calculations run in your browser. Your date of birth is not uploaded to WebToolsEdge, stored by the tool, or sent to a third-party service for calculation. The result is an estimate based on calendar dates and should be verified when official age proof is required.
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