Age Difference Calculator

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Calculates the age difference between two individuals based on their birth dates.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Birth Date of Person 1 and Birth Date of Person 2 in the units shown.

Step 2

Read Age Difference (Years) and Age Difference in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Birth Date of Person 1: 1980-01-01; Birth Date of Person 2: 1990-01-01

Age Difference (Years): 10; Age Difference: 10 years

Birth Date of Person 1: 1995-01-01; Birth Date of Person 2: 2000-01-01

Age Difference (Years): 5; Age Difference: 5 years

Birth Date of Person 1: 2000-01-01; Birth Date of Person 2: 2000-01-01

Age Difference (Years): 0; Age Difference: 0 years

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