Age Calculator
Enter a date of birth to instantly get exact age in years, months, and days — computed entirely in your browser.
Frequently Asked Questions
How is age calculated here?
The calculator finds the difference between your date of birth and the target date, breaking it down into whole years, remaining months, and remaining days — accounting for varying month lengths and leap years.
Can I calculate age as of a future or past date?
Yes — change the "Calculate age as of" field to any date on or after the birth date to see age at that point in time, not just today.
Does this tool store my birth date?
No. Everything runs client-side in your browser; nothing is sent to a server or stored anywhere.
Related everyday calculators
- Date Difference CalculatorFind the number of days, weeks, months, and years between any two dates.
- Percentage CalculatorThree calculators in one: X% of Y, what percent X is of Y, and percentage change between two numbers.
- BMI CalculatorCalculate Body Mass Index in metric or imperial units and see which weight category it falls into.
- Tip CalculatorCalculate the tip on any bill and split the total evenly between any number of people.
Explore CodeSpeedTest