Date Calculator
Calculate your exact age, the difference between dates, or add/subtract days
Enter your birthdate to see your exact age in years, months, and days — plus how many days you’ve been alive and when your next birthday falls.
The Date Difference tab calculates the gap between any two dates, shown as years/months/days as well as total days, weeks, and approximate months — useful for project timelines, contract durations, or anniversaries.
Use Add / Subtract Days to find the date that falls a certain number of days before or after any starting date — handy for deadlines, countdowns, or scheduling.