Count the number of days between any two dates instantly.
| Input | Result |
|---|---|
| 2026-01-01 → 2026-01-31 | 30 days |
| 2026-01-01 → 2027-01-01 | 365 days |
| 2026-03-01 → 2026-03-15 | 14 days |
The calculator returns the difference in days. Add 1 if you want to count both the first and the last day.
Yes, leap years are fully accounted for.
Yes, any two calendar dates work.