Add Days to Date

Calculate the resulting date by adding or subtracting days from an initial date. Free tool to calculate deadlines, due dates, appointments and future planning.

About Add Days to Date Calculator

Professional tool that calculates the resulting date by adding or subtracting days from an initial date. Perfect for calculating delivery deadlines, due dates, appointments, warranty periods and any situation that requires knowing what the date will be after a certain number of days. The calculation is accurate and automatically considers leap years.

Why use our tool?

  • Precise calculation considering leap years
  • Allows adding positive days (future) or negative days (past)
  • Shows date in multiple formats and weekday
  • Simple and intuitive interface

How to use

  • Select the start date
  • Enter how many days you want to add (use negative numbers to subtract)
  • Click calculate to see the resulting date
  • Useful for calculating deadlines, due dates, appointments and future dates

ℹ️ Important: The calculation automatically considers leap years. You can use negative numbers to calculate dates in the past. For example, -7 days returns the date from 7 days ago.