Age Calculator – Calculate Your Exact Age Online

Our Age Calculator helps you accurately determine your age or the time difference between two dates. Instantly calculate age in years, months, weeks, days, hours, minutes, and seconds using a fast and reliable online tool.

Whether you want to know how old you are today, calculate someone’s age for official documents, or find the exact age difference between two dates, this free age calculator provides precise results in seconds.

How the Age Calculator Works

This online age calculator follows the most widely used age calculation system, where a person’s age increases on their birthday. For example, someone who is 3 years and 11 months old is counted as 3 years old until their next birthday.

Simply enter your date of birth (and an optional end date), and the calculator will instantly show your exact age across multiple time units.

Age Calculation Across Different Cultures

Age calculation methods can vary by culture. In many Western countries, age increases on a person’s birthday. However, in some traditional systems—such as certain East Asian age systems—age may increase at the start of the new year rather than on the birthday.

This age calculator uses the international standard age system, making it suitable for official, educational, and everyday use worldwide.

Accurate Results Even with Complex Dates

Calculating age can become confusing due to different month lengths and leap years. Our calculator is designed to handle these cases accurately, including dates at the end of a month. It uses a consistent calculation method to ensure reliable and understandable results.

Why Use Our Free Age Calculator?

Whether you’re checking your age, calculating eligibility, or comparing two dates, this free online age calculator gives you fast, accurate, and easy-to-understand results anytime.