FreeDev Tools

Date Difference Calculator

Calculate days, weeks, months, and years between two dates β€” including business days.

Runs locally in your browser. Your input is not uploaded.

How to Use

  1. 1

    Enter date pairs

    One pair per line in YYYY-MM-DD format: "2024-01-15 to 2026-07-12".

  2. 2

    Run automatically

    The difference is computed as you type β€” no button needed.

  3. 3

    Read the breakdown

    See years/months/days, total days, weeks, weekdays, and hours for each pair.

Frequently Asked Questions

Enter both dates on one line as "2024-01-15 to 2026-07-12" and the tool returns total days, the years/months/days breakdown, complete weeks, weekday count, and hours.