Free Age Calculator
Calculate your exact age in years, months and days. You can also see your total days lived and time remaining until your next birthday.
How to Use the Age Calculator
Using the ToolNest Age Calculator is simple. Select your date of birth from the date field and click the Calculate Age button. The calculator will determine your current age based on today's date.
The result shows your age in years, months and days. Additional information includes the approximate total number of days, weeks and months since your date of birth.
What Does an Age Calculator Do?
An age calculator determines the amount of time between a person's date of birth and a selected current date. Most people use it to quickly find their exact age without manually calculating the difference between dates.
Age is normally expressed in completed years, but an exact calculation can also include the remaining months and days. This makes an age calculator useful when a more precise result is needed.
Common Uses for an Age Calculator
- Checking your exact age
- Finding your age for forms and applications
- Checking the time remaining until your birthday
- Calculating age in days or weeks
- Checking eligibility based on age requirements
- Calculating the age of a family member or child
How Is Age Calculated?
The calculator compares your date of birth with the current date. It first determines the completed years and then calculates the remaining months and days.
Calendar months have different numbers of days, so calculating an exact age requires using the actual calendar dates rather than simply dividing the total number of days by a fixed number.
Frequently Asked Questions
Is this Age Calculator free?
Yes. The ToolNest Age Calculator is free to use and does not require registration.
Does the calculator store my date of birth?
No. The calculation is performed directly in your browser and the date is not sent to a server by this tool.
Can I calculate a child's age?
Yes. You can enter any valid past date of birth to calculate the person's current age.
Does it calculate age in months and days?
Yes. The calculator displays completed years followed by the remaining months and days.
Can I use the Age Calculator on mobile?
Yes. The calculator is responsive and works on smartphones, tablets and desktop computers.