FREE Add or Subtract Days from Date Calculator
Our FREE Add or Subtract Days from Date Calculator helps you quickly find a date in the past or future based on your selected number of days, weeks, or months. Whether you’re calculating due dates, planning projects, or tracking timelines, this tool makes date math easy and accurate.
What is the FREE Add or Subtract Days from Date Calculator?
This online calculator allows you to add or subtract a specific number of days, weeks, or months to/from a selected base date. It’s useful for deadline management, event planning, or determining future/past dates with precision.
Why Use This FREE Add or Subtract Days from Date Calculator?
- ✅ Easy-to-use interface with calendar (Flatpickr)
- ✅ Instantly calculates future or past dates
- ✅ Supports multiple time units: days, weeks, and months
- ✅ No login or installation required
- ✅ 100% FREE and responsive
How to Use the Add/Subtract Date Calculator
- Select a base date using the date picker
- Choose to Add or Subtract from that date
- Select a unit (days, weeks, or months)
- Enter the numeric value (e.g., 10)
- Click Calculate to see the result
Common Use Cases
- 📆 Find the date 90 days from today
- 📉 Subtract 2 months from a deadline
- 📅 Add 6 weeks to your project schedule
- 📦 Estimate delivery or return dates
Benefits of Using a FREE Add or Subtract Days from Date Calculator
This calculator is ideal for users who want a fast and accurate way to compute date differences without relying on manual calendar counting. It’s especially helpful for business owners, students, teachers, project managers, and travelers.
How the FREE Add or Subtract Days from Date Calculator Works
The tool uses JavaScript’s native Date object to perform precise time-based math. When you select a base date and a unit (days/weeks/months), the logic adds or subtracts the appropriate value using built-in functions like setDate() and setMonth().
Example
If today is April 15, 2025 and you add 90 days, the result will be July 14, 2025. If you subtract 2 months from the same date, you’ll get February 15, 2025.
Other Useful FREE Tools
External Resources
Need even more options? Visit TimeAndDate.com’s Add/Subtract Date Calculator to explore more advanced functionality.
Does this Calculator Work for Business Days?
Currently, this tool calculates based on all calendar days. A version that supports business-day logic is in the works!
Is the FREE Add or Subtract Days from Date Calculator accurate?
Yes. It correctly handles leap years, varying month lengths, and transitions between months or years.
Try This FREE Add or Subtract Days from Date Calculator Today
Don’t waste time manually counting calendar squares. This FREE Add or Subtract Days from Date Calculator delivers quick, reliable results for personal and professional use alike.
