Free Age Calculators
Professional tools to answer "How old am I?" and track life's biggest milestones.
Exact Age Calculator
Find your exact age in years, months, days, and seconds. Perfect for "How old am I today?" queries.
Age Gap Calculator
Calculate the age difference between two people or the time gap between two dates.
Biological Age Test
Compare your physical body age to your actual calendar age based on lifestyle markers.
Birthday Countdown
How many days until my birthday? Get a live countdown in days, hours, and minutes.
Retirement Countdown
Calculate years until retirement and find out exactly when you can stop working.
What Generation Am I?
Find out if you are a Baby Boomer, Gen X, Millennial, or Gen Z based on your birth year.
Half Birthday Calculator
Find your 6-month milestone. Great for baby age tracking and "unbirthday" parties.
Dog Years to Human Years
How old is my dog? Scientific conversion based on breed size and weight.
Cat Age in Human Years
Convert your cat's age to the human equivalent to understand their health stage.
Age on a Specific Date
Find out "How old was I?" on any past date or "How old will I be?" in the future.
Time Since Event
Calculate how many years, months, and days have passed since a major historical event.
Website Age Checker
Check the domain age of any website to verify its trust and SEO authority.
Age on Other Planets
Calculate your age on Mars, Jupiter, Venus, and across the solar system.
Age in Seconds & Minutes
See your total lifespan broken down into seconds, minutes, hours, and weeks.
10,000 Day Milestone
Discover rare anniversaries like your 1 billionth second or your 10,000th day alive.
Age is often reduced to a single number, but in reality, it is a complex, multi-dimensional measurement of an entity’s existence across the temporal spectrum. At Time.now, we believe that understanding your place in time requires more than just counting years. Our suite of calculators is designed to provide a 360-degree view of age, from the biological markers in your cells to your orbital position in the solar system.
Chronological age serves as our primary anchor, tracking the literal passage of time according to the Gregorian calendar. Use our Exact Age Calculator to find your specific breakdown. However, our tools go further by exploring biological age—the health of your body relative to your years—via the Biological Age Tool, and even your celestial age using our Planetary Age Calculator.
Our infrastructure utilizes high-precision algorithms that account for the historical nuances of timekeeping. Whether you are a parent tracking a newborn's development with Adjusted Age, a researcher looking for Historical Accuracy, or a pet owner debunking the "seven-year rule" using our Dog Age or Cat Age scientific converters, our hub provides the most reliable data on the web.