Age Calculator

The age calculator computes the exact difference between your date of birth and today (or any date you choose). It accounts for varying month lengths and leap years, giving you a precise breakdown in years, months, and days. It also converts your age into total months, weeks, days, and hours for a complete picture.

Our calculator correctly handles leap years by using actual calendar dates rather than fixed day counts. If you were born on February 29 (a leap day), the calculator still works accurately. Leap years occur every 4 years (except for century years not divisible by 400), and the tool counts exactly how many leap years you have lived through.

The date difference calculator finds the exact span between any two dates in years, months, days, and total days. It is useful for calculating project durations, employment tenure, time between events, pregnancy due dates, or any scenario where you need to know the precise gap between two dates.

Dog years are calculated using the commonly accepted veterinary formula: the first two human years equal about 10.5 dog years each (21 total), and each subsequent human year equals roughly 4 dog years. So a 5-year-old human would be about 33 dog years. This is more accurate than the old "multiply by 7" rule.

Dewx gives you far more than a simple age number. You get a complete breakdown of your age in multiple units, zodiac sign, generation label, birthday countdown, fun facts, and a separate date difference tool. Beyond free tools, Dewx is a complete business operating system with CRM, unified inbox, AI assistant, and automation, built for professionals who need more.