Date Calculator
Add or subtract time from a date, or calculate business days between dates.
Result Date
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Day of Week
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Days from Today
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Result Date
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Day of Week
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Holidays Skipped
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How to use
- Choose Add / Subtract to find a date a specific number of years, months, weeks, or days from a starting date.
- Choose Business Days to add or subtract working days (Mon–Fri), with optional US federal holiday exclusion.
- Select + Add or − Subtract to control the direction of calculation.
- Click Calculate Date to see the resulting date and day of the week.
- Use the Today button to quickly set the start date to today.
About this Date Calculator
Use this free date calculator to add or subtract days, weeks, months, or years from a starting date. It is useful for planning deadlines, renewals, appointments, and project milestones. No signup is required, and the tool works on phones, tablets, and desktop browsers.