ESTIMATED AGE
0 years
Enter a date of birth to calculate age.
This calculator gives a simple age estimate based on the dates entered.
How to calculate age
Age is calculated by comparing a date of birth with another date. Most age calculations count the number of full years that have passed since the birth date.
Example: born on 10 June 1990
If the target date is 10 June 2025, the age is exactly 35 years. If the target date is 9 June 2025, the person is still 34 years old because their birthday has not yet occurred that year.
What this calculator is for
This age calculator helps calculate age from a date of birth. It can be useful for forms, applications, eligibility checks, school years, age milestones, events, planning and general date calculations.
You can use today’s date or choose a different target date to calculate age on a specific day.
Important note
This calculator is for general informational purposes only. Some organisations may use their own age rules for eligibility, deadlines, school years, insurance, benefits or official applications.
Frequently Asked Questions
How is age calculated?
Age is usually calculated by counting the number of full years between a date of birth and a target date.
Can I calculate age on a future date?
Yes. You can enter a future target date to estimate how old someone will be on that date.
Can I calculate age on a past date?
Yes. You can enter a past target date to calculate how old someone was on that date.
Does this calculator include months and days?
Yes. The calculator shows age in years, months and days in the breakdown.
Is this suitable for official use?
This calculator gives a general estimate. For official applications, always check the rules used by the relevant organisation.