Date Calculator — Add Days, Weeks & Months

💡 Date Arithmetic Made Simple

Enter a starting date, choose add or subtract, and specify the number of days, weeks, months, and/or years to adjust. The calculator handles month-length variations (28–31 days), leap years, and all date boundary edge cases automatically.

Common uses: 'What date is 90 days from today?' for contract deadlines. 'What was the date 6 months ago?' for financial reporting periods. 'What date is 2 weeks from Friday?' for scheduling.