Date Calculator
Add days, weeks, months or years to a date
What Date Is It N Days From Today?
Today is Monday, November 2, 2026. What the date will be 7, 30, 90 or 365 days from today, with the day of the week — tap a row to load it into the calculator.
Free Date Calculator — Add or Subtract from Any Date
What date will it be in 30, 45 or 90 days? Find out instantly
Add or subtract days, weeks, months or years from any date and get the exact result with its weekday. Pick a start date (today by default), choose the amount and unit, and the calculator shows the resulting date instantly — for example what date it will be 30, 45 or 90 days from today, or what the date was 6 weeks ago. Month and year math handles end-of-month correctly (January 31 + 1 month = the last day of February), and you also get the ISO format, week number and day of the year. Everything runs free in your browser.
Features
Four Units
Add or subtract days, weeks, months or years
Weekday Included
See which day of the week the result falls on
End-of-Month Safe
Jan 31 + 1 month correctly gives the end of February
100% Private
All calculations happen in your browser
Common Calculations
Popular questions
- What date is 30 days from today?
- What date is 90 days from today?
- What date was 6 weeks ago?
- What date is 6 months from now?
Typical uses
- Payment and invoice due dates
- Visa, permit and document deadlines
- Project milestones and delivery dates
- Warranty and return periods
Frequently Asked Questions
How do I find what date it will be in 30 days?
Leave the start date as today, enter 30, pick Days and Add — the result date and its weekday appear instantly.
Can I subtract time from a date?
Yes. Switch the operation to Subtract to go backwards — for example, the date 45 days or 3 months before any date.
How are months handled at the end of the month?
If the result month is shorter, the date is clamped to its last day: January 31 + 1 month gives February 28 (or 29 in a leap year).
Does it count calendar days or business days?
Calendar days — every day counts, including weekends. For counting weekdays between two dates, use our Date Difference tool, which shows business days too.
Is it free, and does it work on my phone?
Yes. It's completely free with no sign-up and works in your browser on desktop, tablet and phone.