Age difference finder
World's simplest time toolWith this browser-based application, you can calculate the age difference between two people. You can find the age difference between friends and family members (and also animals, such as cats and dogs). When you enter the current ages or birth dates of the people in the input, you'll get the age difference in years, months, days in the output. Created by computer nerds from team Browserling.
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What is a age difference finder?
learn more about this toolThis is a quick online utility for finding the age difference between two or more things that can be dated. For example, you can calculate the age difference in a married couple or a girlfriend and a boyfriend in a relationship. To do this, you just need to enter the birthday of the husband (such as "1990-02-24") on the first line of the input box and the birthday of the wife (such as "1991-05-08") on the second line. As a result in the output box, you'll get "1 year, 2 months, 14 days". In a similar way, you can calculate the current age counted from the time of birth. For example, if you know that your friend was born on "2000-12-13", then to find out exactly how old she is now, you need to compare her time of birth with today's date. The input of this tool can be full birth dates or just the ages. For example, if two friends were born in 2005 and 2007, then the utility will find that their age difference is 2 years. Similarly, if you enter their ages 17 and 15, it will also print 2 years as the answer. The program also accepts a full date of birth (year, month, day) plus the time of birth (hour, minute, second) as input (for example, "2001-03-21 12:30:00"). The more precise date you specify, the more accurate the age difference result will be. You can also calculate multiple age differences by entering three or more dates in a column. If you put three dashes between the dates, then the calculation will reset and this way, you can run the calculation for multiple individual groups of people. Timeabulous!
Age difference finder examples
Click to useAge Difference of a Couple
In this example, we find the age difference in a relationship. The girl's birthday is on "1999-01-06" and we enter this date on the first line. The boy's birthday is on "1998-03-25", and we enter this date on the second line. The answer that we get is the difference "1 year, 2 months, 19 days".
1999-01-06
1998-03-25
1 year, 2 months, 19 days
Precise Age (To a Second)
In this example, we calculate the difference in age of two work colleagues with an accuracy of up to a second. We enter their dates of birth using all date units (year, month, day, hour, minute, second) and as a result, we get the most accurate difference of their age.
1990-01-01 10:20:30
1985-12-31 20:30:40
5 years, 11 months, 30 days, 10 hours, 10 minutes, 10 seconds
Ages of Brothers
In this example, we compare the ages of three brothers. We use three comparison methods, each separated by a three-dash marker. In the first case, we compare the current ages of the brothers (17, 13, and 9 years old) and find that the difference between the 1st and 2nd, and the 2nd and 3rd brothers is 4 years. In the second case, we compare their dates of birth and specify the year and month of birth. In this case, we get a more accurate result "3 years, 8 months" and "4 years, 3 months". And in the third case, we also indicate the precise day of the birth of each brother. Now we get the most accurate result of their age that shows the difference in years, months, and days.
17
13
9
---
2004-07
2008-03
2012-06
---
2004-07-12
2008-03-04
2012-06-12
4 years
4 years
---
3 years, 8 months
4 years, 3 months
---
3 years, 7 months, 21 days
4 years, 3 months, 8 days
Pro tips Master online time tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinetools.com/time/find-age-difference?input=1999-01-06%0A1998-03-25&
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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling our mission is to make people's lives easier, so we created this collection of time and date tools. All our tools share the same user interface, so as soon as you learn how to use one of the tools, you'll be a master of all tools. Behind the scenes, our time and date tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
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