Age Difference Calculator

This online age difference calculator lets you calculate the age gap between two person. This tool determines the simple time difference between the births of two people in years, months, weeks, days, hours, minutes, and seconds. Get quick result about the age difference in relationships.

1st Person Name
Date of Birth
Add birth time (optional)
2nd Person Name
Date of Birth
Add birth time (optional)

How does this "Age Difference Calculator" work?

This is a very flexible and easy to use calculator that allows you to calculate the age in a relationship or the age difference between any two people.

It takes input both the date of birth you entered in the form and once you hit the calculate button it processes this data and displays the result on the page.

There is no ascending or descending order rule in this calculator that the date should be the first major or the smallest.

Age difference in relationships

Age difference between partners is a social phenomenon and describes the sometimes relatively large differences in age between two partners in a relationship. It is the subject of numerous publications and scientific studies.

The acceptance of larger age differences in love relationships is influenced by social and economic conditions. There have been different views over the centuries and it differs in other cultures regarding the partnerships that are practiced, the type and course of the relationship. For example, there can be a marriage, concubinage and harem. Examples of relationship types are monogamy or polygamy, and the course of a relationship may include divorce, adultery or affair.

Several studies have shown that men and women in different age groups are most attractive. For example, women in their early to mid-twenties are considered particularly attractive, while men reach their peak of attractiveness between the ages of their mid-thirties and early forties. So, on average, there is a difference of 13 years between the both in terms of greatest attractiveness.

"Half-your-age-plus-seven" rule

As a rule of thumb for a socially accepted age difference in relationships, the half-of-age-plus-seven rule is sometimes used, which may have French origins.

The rule used to have a different interpretation than it does today, when it was understood as a formula for calculating a bride's ideal age, rather than a socially accepted lower limit of a woman when dating.

The half-age-plus-seven rule appears in the 1903 book The Little Shepherd of Kingdom Come and the 1965 The Autobiography of Malcolm X.

According to this rule, a 28-year-old would date no one younger than 21 (half of 28, plus 7) and a 50-year-old would date no one younger than 32 (half of 50, plus 7).

Age difference in married couples, 2017 US

Age difference Percentage of all married couples
Husband 20+ years older than wife1.0
Husband 15–19 years older than wife1.6
Husband 10–14 years older than wife5.0
Husband 6–9 years older than wife11.2
Husband 4–5 years older than wife12.8
Husband 2–3 years older than wife19.6
Husband and wife within 1–2 years33.9
Wife 2–3 years older than husband6.9
Wife 4–5 years older than husband3.4
Wife 6–9 years older than husband2.8
Wife 10–14 years older than husband1.0
Wife 15–19 years older than husband0.3
Wife 20+ years older than husband0.4

What would be your age if you were born on other planets?

How to calculate age difference?

Age Gap Calculator can be used to find the difference between two different dates of birth. The results that come through this are revealed in the form of years, months, weeks, days, hours, minutes and seconds. Whatever result comes, it is not affected by the time zone of any place, because the result tells the difference between the 2 date of births.

All you have to do is enter your name and your date of birth in the first part of the above form and the other person's name (brother, sister, parent, relative, friend or anyone) and date of birth in the second part. Press the Calculate button, the age difference details of both will appear on the page.

An example of age difference calculation

Let us understand with an example how this tool gives results.

Let's say your date of birth is 10th October 1982 at 8:30:48 PM and your friend's date of birth is 15th July 1989 at 9:45:16 AM, then the result will be like this:

  • The difference of ages of both the persons is 6 years, 9 months, 4 days, 13 hours, 14 minutes, and 28 seconds.
  • Person 1 is older than Person 2 with (time difference).
  • Age differences in all time format (only months, only weeks, only days, only hours, only minutes, only seconds).
  • Person 1 and Person 2 age in month, week, day, hour, minute and second.
  • Next birthday of person 1 and person 2.