Days Between Dates

A free online conversion calculator that calculate the exact number of days between two dates. Get accurate results instantly without any software installation. Counting the days between two dates is essential for project deadline tracking, contract duration calculations, pregnancy week counting, visa-validity periods, and financial interest accrual. Manual counting across calendar boundaries — especially spanning leap years — is tedious and error-prone without a dedicated date calculator. Pick two dates and the tool calculates the exact day count, plus a breakdown showing weeks and months for context. Business-day mode optionally excludes weekends for project planning and contract deadlines. Select a start and end date using the calendar pickers and the tool displays the exact difference in total days, weeks, months, and years. An option to exclude weekends makes it useful for business-day and sprint-duration calculations. Date-difference arithmetic executes through JavaScript's native Date object entirely in the browser. Contract deadlines, medical timelines, and project schedules — potentially confidential — are processed locally with no server round-trip.