Age Calculator
How to Calculate Your Age?
The Age Calculator by Date of Birth makes it super easy to know your exact age in years, months, weeks, and days. You just need to enter your date of birth (or establishment date in case of property, company, or institution) and click on “Calculate Age”. The result instantly tells you how old you are today.
It can also answer questions like:
- How old am I in years, months, or days?
- How many days until my next birthday?
- How old is my house, school, or business?
👉 If you only know the year of birth, the calculator will show your approximate age in 2025 (or any year you choose).
Why not calculate by hand?
If you try to calculate your age manually, you need to consider leap years (366 days instead of 365), months of different lengths, and even old calendars used in history (Julian vs. Gregorian). This makes it complicated, especially for historical figures. That’s why an online age calculator is the fastest and most accurate way.
How old am I really?
At first, the answer looks simple. For example, a child born in 2010 is 15 years old in 2025. But age can be counted in different ways:
- Western method (common today): Age starts at 0. A person becomes 1 year old on their first birthday.
- Eastern method (traditional in some Asian countries): A baby is considered 1 year old at birth, and everyone’s age increases together on New Year’s Day.
This difference can make someone 1–2 years older in Asian counting compared to Western counting.
Also, some people mention their completed age (e.g., 21 years old), while others say their running age (e.g., 22 years old, since they are in their 22nd year). That’s why “How old am I?” isn’t always a straightforward question.
How Old Will I Be in 2025?
Here’s a quick table to help you check your approximate age at the end of 2025 just by knowing your year of birth.
| Year of Birth | Age in 2025 |
|---|---|
| 2024 | 1 year old |
| 2023 | 2 years old |
| 2022 | 3 years old |
| 2021 | 4 years old |
| 2020 | 5 years old |
| 2015 | 10 years old |
| 2010 | 15 years old |
| 2005 | 20 years old |
| 2000 | 25 years old |
| 1995 | 30 years old |
| 1990 | 35 years old |
| 1985 | 40 years old |
| 1980 | 45 years old |
| 1975 | 50 years old |
| 1970 | 55 years old |
| 1965 | 60 years old |
| 1960 | 65 years old |
| 1955 | 70 years old |
| 1950 | 75 years old |
| 1945 | 80 years old |
| 1940 | 85 years old |
| 1935 | 90 years old |
| 1930 | 95 years old |
| 1925 | 100 years old |
👉 This is just an approximate age at the end of 2025. For a precise age in years, months, and days, use the Date of Birth Calculator.