Age Calculator

Calculate your age in years, months, days, and seconds based on your birthdate

Input Parameters

Calculation Results

Age Results

Years:

0

Months:

0

Days:

0

Seconds:

0

Current Date:

Age Calculator Calculator Usage Guide

Learn how to use the Age Calculator and understand age calculation principles

How to Use This Calculator

  1. Enter your birthdate in the "Birthdate" field using the date picker.
  2. Click the "Calculate" button to compute your age.
  3. The calculator will display your age in years, months, days, and seconds.
  4. The current date is displayed to show the reference date for calculation.
  5. Click "Reset" to clear all inputs and results.

Calculation Formula

The calculator uses the following formulas to determine your age:

Years = Current Year - Birth Year
Months = Current Month - Birth Month
Days = Current Day - Birth Day
Seconds = Total time difference in seconds between current date and birthdate

When the current month/day is less than the birth month/day, the months/years are adjusted accordingly. For example, if your birthdate is March 15 and today is January 10, your age would be 29 years, 2 months, and 5 days.

Principle Explanation

The calculator calculates the exact time difference between your birthdate and the current date. It then converts this time difference into years, months, days, and seconds for a precise age measurement. This is more accurate than simply calculating years between birthdate and current date, especially when your birthday hasn't occurred yet in the current year.