Date Calculator

Calculate date differences, age, add or subtract days, and compare dates

Calculation Type

Date Difference

Calculate days between two dates

Add Days

Add days to a date

Subtract Days

Subtract days from a date

Compare Dates

Find which date comes first

Age Calculator

Calculate age from birth date

Date Difference

Calculation Results

(Results will appear here)
Select a calculation type and enter dates to see results

How to use this Date Calculator:

  • Select the type of calculation you want to perform
  • Enter the required dates and values
  • Click Calculate to see the results
  • Use the Copy button to save the results

Calculation Types:

  • Date Difference: Calculate the number of days between two dates
  • Add Days: Add a number of days to a specific date
  • Subtract Days: Subtract a number of days from a specific date
  • Compare Dates: Determine which of two dates comes first
  • Age Calculator: Calculate age in years, months, and days from birth date

All calculations happen in your browser - we never store or transmit your data