Age calculator
Your exact age is the time elapsed from your date of birth to right now, counted in years, months, and days. Enter your birthday below to see it down to the live ticking second, plus your age in weeks, hours, and dog years.
The standard "years, months, days" breakdown is the one most people grew up with, but it hides what is actually a more interesting story. Total days is the cleanest measure of how long you have been alive. Total weeks lines up with the way we plan work and travel. Total hours and minutes get you closer to a sense of just how much accumulated time you already have on the clock. Seconds is the one that surprises everyone the first time they see it tick: a person in their thirties has already counted more than a billion of them. Knowing both the calendar breakdown and the raw totals is useful for things like insurance forms, legal cutoffs, school year placement, and any anniversary planning.
The "multiply your dog's age by seven" rule was always a rough approximation, and modern veterinary research has retired it. The American Kennel Club's progressive method counts the first year of a dog's life as roughly fifteen human years, the second year as nine more, and every year after that as five. That fits much better with how dogs actually mature and senesce. We show both the AKC progressive number and the old ×7 estimate so you can compare them. Breed size matters too: small breeds typically live longer per dog-year than large breeds, so adjust mentally if your companion is a Chihuahua or a Great Dane.
Sometimes you need it for an immigration form. Sometimes you want to know exactly how many days are left until your fortieth birthday so you can plan the trip. Sometimes you are curious how old a relative would have been today. Sometimes you are just bored at work and want to see your seconds tick up. All of these are good reasons. If you need the gap between two arbitrary dates instead, try the days-between tool. If you want to know what time it is right now in another city, try the world clock.