Age Calculator
Calculate exact age in years, months and days
100% private. Your files and inputs never leave your device — everything runs locally in your browser.
How to Use Age Calculator
Calculate exact age in years, months and days. No signup, no uploads, no watermarks.
- 1
Enter your numbers in the input fields.
- 2
Choose the calculation options or frequency.
- 3
The result updates instantly as you type.
- 4
Review the breakdown, chart, or schedule, and copy the answer.
Why choose Age Calculator?
- No uploads — your files never leave your device.
- Free forever with no signup, no watermarks, and no limits.
- Works on any device with a modern browser — no installs.
- Fast, private, and built for getting the job done in seconds.
Frequently Asked Questions
How is a February 29 birthday handled?▾
A leap-day birthday is treated as February 28 in non-leap years, so the age stays accurate on any reference date.
How do you count total months?▾
Total months is the number of whole years times twelve plus the remaining months. For example 3 years and 2 months equals 38 months.
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