Calculate dates quickly and accurately with our free online date calculator. Whether you need to find the number of days between two dates, add or subtract days from a specific date, calculate business days, determine your exact age, or find week numbers, our comprehensive tool has you covered. 

Perfect for project planning, event countdown, age verification, and business scheduling.

• Days Between Dates: Calculate the exact number of days, weeks, months, and years between any two dates
• Add/Subtract Days: Easily add or subtract any number of days from a date
• Business Days: Calculate working days excluding weekends
• Age Calculator: Find exact age in years, months, and days
• Week Number: Determine the ISO week number for any date
• Days Until: Create countdowns for important events
• Timezone Support: Calculate with multiple timezone options
• Calendar Export: Download results as ICS files for any calendar app

Related tool:  try our Text Formatter to format or clean up your text.