Age Calculator

Age Calculator

Age Calculator

What Is Age Calculator

The Age Calculator, also known as “How old am I?” calculator, is a versatile and intelligent utility designed to determine the age of a person, building, or any entity. It provides users with the ability to calculate age in years, weeks, months, days, hours, minutes, and seconds based on the date of birth. The tool is accessible online and does not require any sign-up, making it a convenient option for users.

How To Use

Select Date of Birth:

Input your date of birth by selecting the year, month, and date from the available options.
Select Calculation Date:

Choose a specific date from the past, present, or future for which you want to calculate your age. This could be today’s date or any date of interest.
Hit “Calculate Age” Button:

After entering your date of birth and selecting the desired calculation date, click on the “Calculate Age” button.
View Results:

The results will be displayed on your screen almost instantly. The calculator will provide your exact age in years, weeks, months, days, hours, minutes, and seconds based on the inputted information.
This process ensures that you can quickly and effortlessly find out your age without the need to memorize any complicated formulas. The tool takes care of the calculations using advanced algorithms, providing accurate and reliable results in a blink of an eye.

Code For Tool Implementation

Let’s go through the code step by step and detailed explanations for each part.

<!DOCTYPE html>
<html lang="en">

    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Age Calculator</title>
    <link rel="stylesheet" href="styles.css"> <!-- Link to external CSS file -->

    <!-- Age Calculator Container -->
    <div class="container">
        <!-- Age Calculator Heading -->
        <h1>Age Calculator</h1>
        <!-- Age Calculator Form -->
            <!-- Date of Birth Input -->
            <label for="dob">Select date of birth:</label>
            <input type="date" id="dob" required>
            <!-- Current Date Input -->
            <label for="currentYear">Select current Year:</label>
            <input type="date" id="currentYear" value="" required>
            <!-- Calculate Age Button -->
            <button type="button" class="btn" onclick="calculateAge()">Calculate Age</button>
        <!-- Age Result -->
        <div id="result"></div>

    <script src="script.js"></script> <!-- Link to external JavaScript file -->


HTML (index.html):

  1. Document Type Declaration (<!DOCTYPE html>):
    • Declares the document type and version of HTML being used.
  2. HTML Document Structure:
    • <html lang="en">: Specifies the document’s language as English.
    • <head>: Contains metadata and links to external resources.
    • <meta charset="UTF-8">: Defines the character set for the document as UTF-8.
    • <meta name="viewport" content="width=device-width, initial-scale=1.0">: Configures the viewport for responsive design.
    • <title>: Sets the title of the document.
    • <link rel="stylesheet" href="styles.css">: Links to an external CSS file for styling.
    • <body>: Contains the content of the document.
  3. Container Structure:
    • <div class="container">: Defines a container for the age calculator.
    • <h1>: Heading displaying “Age Calculator.”
  4. Form Structure:
    • <form>: Contains input fields and a button for user interaction.
    • Date of Birth and Current Year input fields with associated labels.
    • <button type="button" class="btn" onclick="calculateAge()">: Button triggering the age calculation when clicked.
    • <div id="result"></div>: Container for displaying the calculated age.
  5. JavaScript Link:
    • <script src="script.js"></script>: Links to an external JavaScript file for logic.
/* Global Styles */
body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;

/* Container Styles */
.container {
    background: linear-gradient(to right, #00c6fb, #005bea);
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    padding: 30px;
    text-align: center;
    max-width: 200px;
    width: 60%;

/* Heading Styles */
.container h1 {
    color: #fff;
    font-size: 28px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);

/* Form Styles */
form {
    display: flex;
    flex-direction: column;
    gap: 15px;

/* Button Styles */
.btn {
    background: linear-gradient(to right, #005bea, #00c6fb);
    border: none;
    border-radius: 5px; 
    color: #fff;
    cursor: pointer;
    font-size: 16px;
    padding: 10px;
    transition: background 0.3s ease;

.btn:hover {
    background: linear-gradient(to right, #00c6fb, #005bea);

/* Input Styles */
input {
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    font-size: 16px;

CSS (styles.css):

  1. Global Styles:
    • body: Sets overall styles for the document body, including font, background color, and flexbox for centering.
    • .container: Styles for the main container, including background gradient, border radius, box shadow, padding, and text alignment.
    • .container h1: Styles for the heading, including color, font size, margin, and text shadow.
    • form: Styles for the form, using flexbox for column layout and spacing.
  2. Button and Input Styles:
    • .btn: Styles for the button, including background gradient, border, border radius, color, cursor, font size, padding, and hover effect.
    • input: Styles for input fields, including border, border radius, padding, and font size.
function calculateAge() {
    // Get the input values
    var dobInput = document.getElementById('dob');
    var currentYearInput = document.getElementById('currentYear');

    var dob = new Date(dobInput.value);
    var currentYear = parseInt(currentYearInput.value);

    // Check if the input is a valid date
    if (isNaN(dob.getTime())) {
        alert('Please enter a valid date of birth.');

    // Calculate the age
    var birthYear = dob.getFullYear();
    var age = currentYear - birthYear;

    // Display the result
    var resultContainer = document.getElementById('result');
    resultContainer.innerHTML = 'Your age is: ' + age + ' years';

JavaScript (script.js):

  1. calculateAge Function:
    • function calculateAge(): Defines a JavaScript function named calculateAge.
    • Gets user input for date of birth and current year.
    • Converts the date of birth to a JavaScript Date object.
    • Checks if the date of birth is valid.
    • Calculates the age by subtracting the birth year from the current year.
    • Displays the result in the HTML result container.
  2. HTML Element Access:
    • Uses document.getElementById to access HTML elements by their IDs.
  3. Date Object:
    • Uses the Date object to handle date-related calculations.
  4. Error Handling:
    • Checks for a valid date of birth and displays an alert if the input is invalid.
  5. Result Display:
    • Updates the HTML content inside the result container with the calculated age.

By organizing the code into HTML, CSS, and JavaScript, it becomes modular and easier to maintain. The HTML structure defines the user interface, the CSS styles enhance the visual presentation, and the JavaScript logic handles the age calculation and result display. The separation of concerns improves code readability and maintainability.

Steps For Implementation On WordPress:

To implement this Age Calculator on a WordPress site, follow these steps:

  1. Create a New Page:
    • Log in to your WordPress admin dashboard.
    • Navigate to “Pages” and click “Add New.”
    • Enter a title for your page, e.g., “Age Calculator.”
  2. Switch to HTML Editor:
    • In the WordPress editor, switch to the HTML editor mode.
  3. Copy HTML Content:
    • Copy the entire HTML code along with embedded CSS and JavaScript.
  4. Paste Code:
    • Paste the copied code into the HTML editor of your WordPress page.
  5. Update/Publish:
    • Click the “Update” or “Publish” button to save the changes.
  6. View Page:
    • Visit the page on your WordPress site to see the Age Calculator in action.

Note: Depending on your WordPress theme and plugins, you may encounter styling conflicts. Adjustments might be needed to ensure proper integration.

How does our date of birth calculator operate?

Our date of birth (DOB) calculator utilizes advanced algorithms to efficiently address the task of determining the age between two given dates. It enables users to compute their age as of any specific moment, providing swift and accurate results. The tool is designed for quick usage, delivering precise outcomes based on user-entered details without the need for cumbersome sign-up processes. Users are not required to link social media accounts or provide email addresses when utilizing our birth calculator.

Discover your age in days, weeks, and months.

Our birth year calculator employs various time units to answer specific queries such as “How many days old am I?” or “How old was I on this date?” It furnishes comprehensive details related to the user-entered dates, including age in months, weeks, days, hours, minutes, and seconds.

Date Formats:

Our online age calculator supports standard date formats for calculating age or duration between two dates. These include:

  • US Date Style: mm/dd/yyyy, mm.dd.yyyy, mm-dd-yyyy
  • European Date Style: dd/mm/yyyy,, dd-mm-yyyy
  • International Date Style: yyyy-mm-dd

Obtain precise age details on any date.

A standout feature of our year calculator is the flexibility it offers users to determine the exact age on any chosen date. The tool allows users to alter the date as desired, facilitating the calculation of age between two dates effortlessly. The process takes only a few seconds, providing users with accurate age details without time or financial investment.

Uncover the day of your birth.

Wondering about the day of the week you were born? Our date of birth calculator swiftly reveals this information, eliminating the need for manual calculations.

Calculate your age to future dates.

Our birth date calculator enables users to compute their age from the date of birth to any future or past year. By adjusting the dates, users can quickly find out how old they will be in the upcoming years.

Who can benefit from the online age calculator?

This age calculator can be valuable for individuals across various domains, including:

  • Admission Offices: Determining the correct age of students enrolling in specific programs.
  • Government Organizations: Ensuring accurate personal details.
  • HR Faculties: Streamlining the process of recording employees’ ages without manual calculations.

Q&A for Age Calculator

  1. Q: How does the date of birth calculator determine age between two dates?
    • A: The calculator utilizes advanced algorithms to swiftly and accurately calculate the age based on the user-entered details.
  2. Q: What time units does the calculator use to express age?
    • A: It provides age in various units, including months, weeks, days, hours, minutes, and seconds.
  3. Q: Can the calculator accommodate different date formats?
    • A: Yes, it supports standard formats such as mm/dd/yyyy, dd/mm/yyyy, and yyyy-mm-dd, among others.
  4. Q: How flexible is the calculator in providing age details on specific dates?
    • A: Users can easily input any date of their choice to get accurate age details, offering flexibility beyond the current date.
  5. Q: Does the calculator reveal the day of the week for a given birth date?
    • A: Yes, it swiftly uncovers the day of the week corresponding to the specified birth date.
  6. Q: Can I use the calculator to predict my age in future years?
    • A: Absolutely, by adjusting the dates, you can quickly find out how old you will be in upcoming years.
  7. Q: In what scenarios can the online age calculator be beneficial?
    • A: It is useful in admission offices to determine student eligibility, in government organizations for accurate records, and by HR faculties for streamlined employee data management.
  8. Q: How quickly does the calculator provide results for age calculations?
    • A: The entire process takes just a couple of seconds, ensuring users receive accurate age details without a significant time investment.
  9. Q: Can I check my age on a specific past date using this calculator?
    • A: Yes, you can use the calculator to find out how old you were on any date in the past.
  10. Q: Besides using the age calculator, are there other ways to figure out someone’s age?
    • A: Yes, alternative methods include checking social media accounts, asking friends, using public records, or recalling shared memories.