Age & Date Calculators
Ages, birthdays & date differences.
About Age & Date Calculators
Age and date calculators make common birthday and calendar calculations easier to perform accurately. They can help calculate an exact age, compare dates, find the difference between two dates and answer practical questions about birthdays and elapsed calendar periods.
Age calculations are based on calendar dates rather than simply dividing a number of days by 365. A person's age changes on the relevant birthday, and leap years can affect the number of days between dates. Date-difference tools are useful when you need the result expressed in days or in a combination of years, months and days.
For planning, enter dates carefully and confirm which date is treated as the start and end of a period. Depending on the task, an inclusive count and an elapsed-time count can differ by one day. The individual calculator page explains the convention used for its result.
Vora Calculator is designed to make these calculations transparent and repeatable. Use the tools to check birthdays, anniversaries, deadlines and date intervals, and confirm important legal or administrative dates with the organization responsible for them.