Count the number of days, weeks and months between two dates.
How this calculator arrives at its answer
Enter a start and end date to count the days between them, plus approximate weeks, months and years. Real calendar days including leap years are used.
Using the calculator
- Enter your figures in the fields provided.
- The result updates as you type.
- Review the breakdown below the main number.
Formula reference
days = end date − start date
Try it with these numbers
On the values this calculator opens with, the days between is 30. Underneath, Weeks comes out at 4.3 and Months at 1. Change any field and every figure updates as you type.
Questions people ask about this
How do I count days between dates?
Subtract the earlier date from the later one — the counter includes leap years.
Are months exact?
Days are exact; months and years use average lengths as an approximation.