Date Calculator
Calculate dates by adding or subtracting days, weeks, months, and years with this free online Date Calculator. Find a date before or after a starting date for planning schedules, deadlines, events, and personal tasks. Enter your starting date and the time interval to get the result quickly.
What is Date Calculator?
Calculate future or past dates with the free Date Calculator. Add or subtract days, weeks, months and years from a starting date to find a target date for schedules, deadlines, events and personal planning. Enter the starting date and time interval to calculate the result. Remember that month-based calculations can depend on the starting day and the length of the destination month.
Why use this tool?
- Get a quick answer without a spreadsheet or a handheld calculator.
- See the result update as you change the numbers.
- Check your own calculation.
How to use Date Calculator
- Step 1. Enter the values the calculator asks for.
- Step 2. Read the result as it updates.
- Step 3. Check the inputs and units if the answer looks unexpected.
Common use cases
Important notes
- Check units and rounding, especially for results you will rely on.
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Date Calculator FAQ
What is Date Calculator?
Calculate future or past dates by adding or subtracting days, weeks, months, and years with this free online date calculator.
Do I need an account to use Date Calculator?
No. You can use it without creating an account.