Add or Subtract Days — Free Online Tool

Add or subtract days from any date and get the exact resulting date and weekday. Add or Subtract Days is a free online tool from the ToolsRift Everyday Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

Loading Add or Subtract Days…

How to use Add or Subtract Days

  1. Open the Add or Subtract Days above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

What can I use this for?

Common uses: finding a deadline 90 days from today, a 30-day notice period end date, a return-window date, or medication schedules.

Does it handle months and leap years?

Yes. The calculation uses real calendar dates so month lengths and leap years are always correct.

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