To calculate your exact age, select your date of birth in DIT ToolsKit's Age Calculator. It instantly shows your age in years, months, and days, plus the total number of days you've been alive.
What is Age Calculator?
Age Calculator works out your exact age — down to the year, month, and day — from a date of birth, along with the total number of days since that date.
How to use Age Calculator
- Select your date of birth using the date picker.
- Read your exact age in years, months, and days instantly.
Benefits of Age Calculator
- Instant, precise calculation down to the day
- Also shows total days lived, not just years
- No signup or personal data stored
- Works entirely in your browser
Common use cases
- Finding your exact age for an official form
- Calculating a child's precise age in months for medical or school purposes
- Working out the exact number of days until or since a specific date
Privacy & security
Age Calculator processes your file directly in your browser using client-side code. Your file is never uploaded to DIT ToolsKit's servers, so it stays on your device throughout the entire process.
Frequently asked questions
Does this account for leap years?
Yes — the calculation is based on actual calendar dates, so leap years are automatically accounted for.
Is my date of birth stored anywhere?
No — the calculation happens instantly in your browser and nothing is saved or sent anywhere.