# Age to Birthday Calculator

Welcome to the age-to-birthday calculator, a tool created to **know your birthday according to your age**.

This age-to-birthday converter can also do the opposite: **knowing your age from a birthday date**. Therefore, you can use it to discover how old you would be if born in 2002, 2003, or any other year and day of a month.

## How to use the age-to-birthday converter

As its name indicates, this age-to-birthday calculator has two functionalities:

**Calculating your birthday according to your age:**input your age, and you'll get the corresponding birthday; and**Knowing your age from your birthday date:**select your birth date, and you'll discover how old you are.

The **reference date (On...)** corresponds to the inputted or resulting age. For example:

- If you input 20 years and your reference date is Jan 31st of 2024, we'll calculate the birthday of someone who is 20 years old on that date.
- If you input your birthday and your reference date as Jan 31st of 2024, we'll calculate how old you are on that date (Jan 31st, 2024).

By default, the **reference date is set to today**, as the age we usually know or need to know corresponds to that day.

## Other age and birthday calculators

If this age-to-birthday converter results helpfully, these other tools will also be valuable for you:

## FAQ

### How old would you be if born in 2002?

Once your birthday occurs in 2023, you'll be **21 years old**. The reason is that from **2002** to **2023**, **21 years** have passed. If your birthday didn't occur this year yet, you are still **20 years old**.

### How old am I if I was born in 2003?

Once your birthday occurs in 2023, you'll be **20 years old**. To know how old you are if you were born in 2003:

- Subtract the current year from the birth year:

`Current year - Birth year = 2023 - 2003 = 20 years`

- Look at your birthday: If your birthday didn't occur this year yet, you are still 19. Once the birthday arrives, you'll finally be
**20**.

### How old am I if I was born in 1997?

Once your birthday occurs in 2023, you'll be **26 years old**. To know how old is someone born in 1997:

- Subtract the current year from the birth year:

`Current year - Birth year = 2023 - 1997 = 26 years`

- Look at your birthday: If your birthday didn't occur this year yet, you are still 25 years old. Once this happens, you'll finally be
**26**.