Age Calculator – Calculate Your Exact Age
Calculate how old you are using the age calculator below. Get your age in years, months, days, or seconds.
Your Age:
| Age in Months: | |
| Age in Days: | |
| Age in Hours: | |
| Age in Minutes: | |
| Age in Seconds: | |
| Next Birthday: |
start countdown |
See how old you will be in:
On this page:
Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.
Pateakia has worked in education for 15 years and has three degrees, including a PhD, Master's degree, and Bachelor's degree. She specializes in mathematics.
How Old Are You in 2025?
Ever want to know your age in days? Our age calculator can find your age in years, months, days, hours, minutes, and seconds!
Enter your date of birth and the date to compare it to, and the calculator will find your age on that date. It will even calculate the days until your next birthday.
You can also find the year you were born in the chart below to see how old you are on your birthday in 2025.
| Birth Year | Age in 2025 |
|---|---|
| 2024 | 1 year old |
| 2023 | 2 years old |
| 2022 | 3 years old |
| 2021 | 4 years old |
| 2020 | 5 years old |
| 2019 | 6 years old |
| 2018 | 7 years old |
| 2017 | 8 years old |
| 2016 | 9 years old |
| 2015 | 10 years old |
| 2014 | 11 years old |
| 2013 | 12 years old |
| 2012 | 13 years old |
| 2011 | 14 years old |
| 2010 | 15 years old |
| 2009 | 16 years old |
| 2008 | 17 years old |
| 2007 | 18 years old |
| 2006 | 19 years old |
| 2005 | 20 years old |
| 2004 | 21 years old |
| 2003 | 22 years old |
| 2002 | 23 years old |
| 2001 | 24 years old |
| 2000 | 25 years old |
| 1999 | 26 years old |
| 1998 | 27 years old |
| 1997 | 28 years old |
| 1996 | 29 years old |
| 1995 | 30 years old |
| 1994 | 31 years old |
| 1993 | 32 years old |
| 1992 | 33 years old |
| 1991 | 34 years old |
| 1990 | 35 years old |
| 1989 | 36 years old |
| 1988 | 37 years old |
| 1987 | 38 years old |
| 1986 | 39 years old |
| 1985 | 40 years old |
| 1984 | 41 years old |
| 1983 | 42 years old |
| 1982 | 43 years old |
| 1981 | 44 years old |
| 1980 | 45 years old |
| 1979 | 46 years old |
| 1978 | 47 years old |
| 1977 | 48 years old |
| 1976 | 49 years old |
| 1975 | 50 years old |
| 1974 | 51 years old |
| 1973 | 52 years old |
| 1972 | 53 years old |
| 1971 | 54 years old |
| 1970 | 55 years old |
| 1969 | 56 years old |
| 1968 | 57 years old |
| 1967 | 58 years old |
| 1966 | 59 years old |
| 1965 | 60 years old |
| 1964 | 61 years old |
| 1963 | 62 years old |
| 1962 | 63 years old |
| 1961 | 64 years old |
| 1960 | 65 years old |
| 1959 | 66 years old |
| 1958 | 67 years old |
| 1957 | 68 years old |
| 1956 | 69 years old |
| 1955 | 70 years old |
| 1954 | 71 years old |
| 1953 | 72 years old |
| 1952 | 73 years old |
| 1951 | 74 years old |
| 1950 | 75 years old |
| 1949 | 76 years old |
| 1948 | 77 years old |
| 1947 | 78 years old |
| 1946 | 79 years old |
| 1945 | 80 years old |
| 1944 | 81 years old |
| 1943 | 82 years old |
| 1942 | 83 years old |
| 1941 | 84 years old |
| 1940 | 85 years old |
| 1939 | 86 years old |
| 1938 | 87 years old |
| 1937 | 88 years old |
| 1936 | 89 years old |
| 1935 | 90 years old |
| 1934 | 91 years old |
| 1933 | 92 years old |
| 1932 | 93 years old |
| 1931 | 94 years old |
| 1930 | 95 years old |
| 1929 | 96 years old |
| 1928 | 97 years old |
| 1927 | 98 years old |
| 1926 | 99 years old |
| 1925 | 100 years old |
We show the steps to calculate these ages below.
How to Calculate Your Age
We have found that the easiest way to find out how old you are by hand is by subtracting the current year from your birth year. Then, if you haven’t already had a birthday yet this year, subtract one from your age.
If your birthday has passed in 2025:
your age = 2025 – birth year
If your birthday hasn’t passed yet:
your age = 2025 – birth year – 1
This is the same basic formula that you can use to find out how old you were on any date.
For example, let’s figure out your age if you were born in 2005, assuming your birthday has already passed this year.
age = 2025 – 2005 = 20 years
So, if you were born in 2005 and you already had your birthday in 2025, you are 20 years old.
How to Find Your Age in Days
Are you wondering what your age is in days? In our experience, the most accurate way to find out how old you are in days is to use an age calculator since it accounts for things like leap years.
But, you can also calculate how old you are in days by multiplying your age plus one by 365.25. Then, subtract the number of days until your next birthday.
age in days = ((age in years + 1) × 365.25) – days until birthday
This formula uses 365.25 days per year to account for leap years, where every four years there is an extra day – February 29.
You can confirm this using our date calculator.
For example, if you are 23 years old and your birthday is in 45 days, you can find out how many days old you are using the following formula:
age in days = ((23 + 1) × 365.25) – 45
age in days = (24 × 365.25) – 45
age in days = 8,766 – 45
age in days = 8,721
So, you would be 8,721 days old using this formula.
You can also find out the age gap between two people using our age difference calculator.