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Free date calculator. Find the difference between two dates or add/subtract days from any date.
The date calculator computes the difference between two dates, or adds and subtracts days, weeks, months, and years from a starting date. It returns the result as a calendar date and as a total day count.
Project managers tracking deadlines, lawyers and accountants calculating filing dates, event planners scheduling milestones, and anyone counting down to a wedding or anniversary. HR and benefits staff also use one for tenure and waiting-period calculations.
It handles month-length and leap-year edge cases that trip up manual counting, and it eliminates errors when long spans of weeks or years are involved. It also turns "X business days from now" into a concrete date.
It answers questions like "What is the date 90 days from today?", "How many days are between June 12 and December 1?", and "What date is 18 months before my contract expires?"