Date & Calendar Math

Days Between Two Dates

Count total calendar days between any two dates with optional inclusive end-date counting.

Jan 1 Today
Today +30 Days End of Year

Calculation Result

Instant
271 Days
38 Weeks + 5 Days (Exclusive of end date)
Total Days
271
Total Weeks
38
Total Hours
6,504
Total Minutes
390,240

About Days Between Two Dates

A fast, lightweight tool to calculate exact elapsed calendar days between two points in time.

Calculation Methodology & Formula

Scalar day count computed as |Date2 - Date1| in full 24-hour periods, with an explicit +1 adjustment when the end date is included.

How to Use This Calculator

  1. Select Date 1 and Date 2.
  2. Check "Include End Date" if needed.
  3. Click "Calculate Days".

Frequently Asked Questions

Related Calculators

Add Days to Date Calculator

Add any number of calendar days to a starting date to find the future date and day of the week.

Open Tool →

Date Difference Calculator

Calculate the exact elapsed time between two dates in calendar years, months, days, and total days.

Open Tool →

Hours Between Two Dates

Calculate elapsed hours between two date-times with daylight saving time transition awareness.

Open Tool →