Date Range Calculator
Quickly determine the number of days, weeks, or months between two dates with our free online calculator, suitable for personal and professional use.

Check It Yourself
About This Tool
The Date Range Calculator is a versatile online tool designed to compute the exact difference between two dates in days, weeks, or months. It simplifies planning and reporting tasks by providing quick, accurate results. Whether you're managing project deadlines, event schedules, or personal milestones, this calculator offers a seamless experience.
Users can select start and end dates via intuitive date pickers and choose their preferred measurement units. The calculation logic accounts for leap years and varying month lengths to ensure precision. Results are displayed in clear, easy-to-understand formats, such as "45 days" or "1 month and 15 days." Advanced options include saving calculation history, copying results, and switching date formats to accommodate regional preferences.
Designed with modern UX principles, the tool features a responsive layout suitable for both desktop and mobile devices. Accessibility features ensure high contrast, keyboard navigation, and screen reader support, making it usable for all users. The calculator is ideal for professionals in project management, human resources, event planning, and personal scheduling, providing a straightforward solution for date interval calculations.
How to Use
1. Select the start date using the date picker.
2. Select the end date.
3. Choose the desired unit (days, weeks, months).
4. Click the 'Calculate' button.
5. View the result displayed below in a clear format.
6. Optional: Copy, save, or reset inputs for new calculations.

FAQs/Additional Resources
Find Quick Answers
How does the calculator handle leap years?
Can I use different date formats?
What if the end date is before the start date?
Is this tool suitable for professional project management?
Can I export or save my calculation results?
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