Age Calculator
This tool calculates the duration between two points in time, providing the result in a clear and detailed breakdown. Simply select a start date and an end date, and the calculator will determine the exact length of that period.
Age Calculator
Calculate your age quickly and accurately
Calculation Results
Easily determine your exact age or the time interval between any two dates. The result is displayed in years, months, weeks, days, hours, minutes, and seconds for a comprehensive view.
How to Use:
- Select your Date of Birth.
- Select the Age at the Date (defaults to today).
- Click Calculate.
Related Tools: Date Calculator | Time Calculator | Day Counter
Understanding Age Calculation
This calculator uses the most common age system, where a person's age increases on their birthday. For instance, someone who is 3 years and 11 months old is considered 3; their age will become 4 on their next birthday.
Note on Cultural Differences:
Age is counted differently around the world. In some cultures, age is defined by the current year of life, meaning a person is considered "1" at birth. In traditional Chinese systems, for example, everyone gains a year on the Lunar New Year, not on their individual birthday.
A Note on Month Calculations:
Calculations involving the end of months can sometimes be confusing due to the varying number of days in each month.
Example: From February 28, 2022, to March 31, 2022, using our method, the result is 1 month and 3 days. An alternative method that treats both dates as month-ends would yield 1 month. Both are valid; we use the first method for consistency. This applies to similar date ranges (e.g., Apr 30 to May 31).
Calculations involving the end of months can sometimes be confusing due to the varying number of days in each month.
Our method: We count from a specific date in one month to the same date in the next month (e.g., Feb 28 to Mar 28 is one month).
Our method: We count from a specific date in one month to the same date in the next month (e.g., Feb 28 to Mar 28 is one month).
Example: From February 28, 2022, to March 31, 2022, using our method, the result is 1 month and 3 days. An alternative method that treats both dates as month-ends would yield 1 month. Both are valid; we use the first method for consistency. This applies to similar date ranges (e.g., Apr 30 to May 31).
