Days Between Dates Calculator

Enter a start and end date to see the exact number of calendar days between them, plus a breakdown in weeks and months where helpful. Everything runs locally in your browser — your inputs are not uploaded to produce the result.

The calculator shows the difference between the two dates. Check the on-screen note for whether the count is inclusive or exclusive of endpoints. Calendar date maths accounts for leap years automatically.

Use the Working Days or Business Days calculators to exclude weekends and (optionally) public holidays. Tweak the inputs above to compare options, then copy or note the result you need.