Age Calculator

Curious to know your exact age down to the last second? This free online Age Calculator makes it easy to calculate your age or the time difference between any two dates. Whether you're planning a birthday surprise, tracking the time since a special event, or just wondering 'How old am I?', this tool gives you detailed results in years, months, days, hours, minutes, and seconds. Simply enter your birth date (or any start date), then select a comparison date—or use today's date by default. Click 'Calculate' to view your full age breakdown. Want to try a different date? Just hit 'Reset' and explore again.