Date Calculator & Days Counter

Simply select your start date and end date using the date pickers, then click "Calculate Days." Our tool instantly calculates the total number of days between the two dates, including both the start and end dates. You'll also see results in weeks, months, and years for comprehensive date analysis.

Yes! Use the "Add/Subtract Days" calculator section. Select your base date, enter the number of days to add or subtract, and choose the operation. Our tool will calculate the exact future or past date. This is perfect for calculating deadlines, project timelines, or event planning.

Our basic calculator includes all days including weekends and holidays. For business days calculations that exclude weekends, we recommend checking our advanced business day calculator. The standard calculation provides the total calendar days between dates, which is useful for most planning purposes.

Our date calculator is 100% accurate and accounts for leap years, different month lengths, and all calendar variations. The calculations are performed using precise JavaScript date functions, ensuring reliable results for any date range, from historical dates to future dates many years ahead.

Absolutely! When you calculate days between dates, our tool automatically converts and displays the result in multiple formats: total days, weeks, months, and years. The weeks calculation shows complete weeks, while months and years provide approximate values based on average month and year lengths.

Yes, our Date Calculator is completely free with no registration required. You can perform unlimited date calculations without any restrictions. We're committed to providing free, useful tools for students, professionals, and anyone needing date calculations.

The quick date buttons (1 Week, 1 Month, 1 Week Ago, 1 Month Ago) allow instant calculations for common time periods. Clicking any button automatically sets the number of days and operation type in the Add/Subtract calculator, then performs the calculation immediately—perfect for quick planning.

Yes, our calculator works with any dates from year 1000 to year 9999. You can calculate days between historical dates, future dates, or any combination. The tool handles all calendar intricacies including leap years and varying month lengths throughout history and into the future.

Click the exchange arrow button (↔) between the Calculate Days and Reset buttons. This instantly swaps your selected start and end dates, then recalculates if results are visible. This is useful when you realize you entered dates in the wrong order or want to calculate the reverse period.

Completely secure! All calculations happen locally in your browser—your dates never leave your device or get sent to any server. We don't store or have access to any dates you calculate. This ensures complete privacy for personal, business, or sensitive date calculations.