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N-Day Calculator

Find the date that falls a given number of days before or after any date - answers 'what is 90 days from today', '60 days from today', '45 days from today', or any other day count you need, instantly.

Category: time
Use Case: Finding a Future or Past Date, Calculating Deadlines & Due Dates, Planning Events a Set Number of Days Out
Privacy: 100% browser-based

Popular: what is 90 days from today, 60 days from today, 45 days from today, 28 days from today, 21 days from today, or 6 weeks from today? Click a preset above to find out.

Enter a start date and a non-negative number of days to see the resulting date

Recommended Settings

Pro Tips

  • This counts plain calendar days, including weekends and holidays - use the Business Day Calculator instead if you need to skip weekends
  • The default start date is today, but you can change it to calculate from any past or future date
  • Use 'Before' to find a date a set number of days in the past, useful for questions like '90 days before a deadline'
  • The week breakdown below the result makes it easy to see roughly how many weeks a day count represents

Most Popular

The most-checked windows are 90, 60, and 45 days from today, followed closely by 28, 21, and 14 days - common lengths for deadlines, return windows, and legal or medical waiting periods

When to Use This Tool

Finding a Future or Past Date

Quickly find what date falls a specific number of days from today or any other date.

Calculating Deadlines & Due Dates

Determine a deadline that falls a set number of days after a trigger date, like a contract signing or invoice date.

Planning Events a Set Number of Days Out

Plan an event, reminder, or milestone a specific number of days in the future.

Checking Return or Waiting Periods

Verify a return window, waiting period, or eligibility date measured in calendar days.

How It Works

1

Take the start date you enter (or today, by default)

2

Add or subtract the number of days you specify, counting every calendar day including weekends and holidays

3

Display the resulting date along with a week-and-day breakdown of the span

100% Private

Files never leave your device. All processing happens locally in your browser.

Lightning Fast

Powered by Client-side JavaScript date arithmetic for optimal performance on modern browsers.

Open Source

Built with verified, open-source libraries. Fully transparent.

Frequently Asked Questions

Why does the 90-day date matter for return policies and visas?

Many return windows, visa processing times, and notice periods are measured in exactly 90 calendar days. Click the 90 days preset above with 'After' selected to see today's exact 90-day date, recalculated live from the real current date.

How far out is 60 days compared to 45 days?

60 days is about two months out, while 45 days is roughly a month and a half - both are common deadline lengths for legal notices and contract terms. Use the matching preset above to see either exact date instantly.

Is 28 days the same as 4 weeks?

Yes, exactly - 28 days always equals precisely 4 weeks with no remainder, which is why it's a popular choice for medication cycles, billing periods, and sprint planning. Click the 28 days preset to see today's date.

What's a quick way to check 2 or 3 weeks out from today?

Use the 14-day preset for 2 weeks or the 21-day preset for 3 weeks - both convert cleanly since 7 days always makes exactly one week.

Does '6 weeks from today' give the same result as 42 days?

Yes - 6 weeks is always exactly 42 days (6 × 7). Click the '6 weeks' preset above to jump straight to it without doing the multiplication yourself.

Does this count weekends and holidays?

Yes, this counts every calendar day, including weekends and holidays. If you need to skip weekends for a business deadline, use the Business Day Calculator instead.

Can I calculate days from a date other than today?

Yes, change the start date field to any past or future date, and the calculation will use that as the starting point instead of today.

How do I find a date in the past instead of the future?

Select 'Before' instead of 'After' to subtract the number of days from your start date rather than adding them.

Is my data sent to a server?

No. All date calculations happen entirely in your browser using JavaScript.