Forward Date Calculator
Add Days to a Date
How to Add Days to a Date
The forward date calculator lets you add any number of days, weeks, or months to a starting date. Simply select your start date, enter the number to add, choose your unit, and click Calculate. The result includes the day of the week and ISO date format.
Common Forward Date Calculations
| Starting Point | Add | Common Use |
|---|---|---|
| Today | 30 days | Invoice Net 30 payment due dates |
| Today | 90 days | Probation period end dates, BAS deadlines |
| Today | 6 months | Visa validity periods, rental lease renewals |
| Today | 12 months | Annual licence renewals, subscription expiry |
| Event date | 14 days | Cooling-off periods under Australian Consumer Law |
Business Days vs Calendar Days
This calculator adds calendar days by default, which includes weekends and public holidays. If you need to calculate business days only, use our business days calculator instead.
Australian Planning Scenarios
- Centrelink reporting — Add 14 days for fortnightly reporting periods
- Tax lodgement — Add days from the end of the financial year (30 June) to find your tax return deadline
- Lease agreements — Calculate notice period end dates by adding the required days to your notice date
- Visa processing — Estimate when your visa application may be finalised
- Project deadlines — Calculate milestone dates from project start
Need to Subtract Days Instead?
Use our days before calculator to count backwards from any date.
Days Before CalculatorFrequently Asked Questions
How do I add days to a date?
Enter your start date in the calculator above, type the number of days to add, select 'Days' as the unit, and click Calculate. The result shows the exact future date.
Does the forward date calculator include weekends?
Yes, this calculator adds calendar days which includes weekends and public holidays. For business days only, use our business days calculator.
Can I add months to a date?
Yes. Select 'Months' from the dropdown. The calculator handles month-end edge cases — for example, adding 1 month to 31 January gives 28 February (or 29 in a leap year).
What is the maximum number of days I can add?
You can add up to 9,999 days (about 27 years) to any date.