Calculate your exact age in years, months, days, hours, minutes, and seconds. Also add or subtract years from any date.
Enter your birth date and optionally a specific date to calculate your age at that time.
Add or subtract years, months, and days from any date. Useful for calculating future or past dates.
Calculate the exact age difference between two people or dates.
Calculate what your age will be (or was) at a specific future or past date.
Age calculation involves determining the time elapsed between two dates. While it might seem simple, there are several factors to consider:
However, age calculation becomes more complex when we consider:
Our calculator handles all these complexities automatically, providing you with accurate age calculations in multiple units.
When you add or subtract years from a date, the calculator handles several important considerations:
The calculator automatically accounts for:
Our calculator uses intelligent date arithmetic:
This "last day of month" logic ensures natural date progression.
The Add/Subtract Years calculator is useful for:
Parents often track age in months for young children:
Practical examples of date calculations:
Calculating days until next birthday:
Our age calculator is highly accurate and accounts for leap years, varying month lengths, and time calculations when provided. It uses the same date calculation methods as standard calendar systems.
When adding/subtracting years that cross February 29, the calculator intelligently adjusts to February 28 (or 29 if the target year is a leap year). This ensures natural date progression.
Yes, enable the "Include Time Calculation" option to enter birth time and calculation time for precise age calculations down to the second.
The calculator uses "last day of month" logic. Adding 1 month to January 31 gives you February 28 (or 29 in a leap year), not March 3. This is the standard approach in date arithmetic.