A 30-day notice from 1 March ends on 31 March.
Employment
Notice Period Calculator
Calculate an estimated last working date from resignation date and notice length in days, weeks or months. Get an instant result with no signup.
Free calculator
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Your result will appear here
Complete the fields and select “Calculate result.” Your values stay in this browser.
When to use this calculator
Use this for an initial calendar-date estimate when a notice period is stated in days, weeks or months, such as 30 days, 4 weeks, 1 month or 3 months. It is most useful before discussing a resignation timeline with HR or a future employer.
Formula
The calculator uses this formula:
Last working date = Notice start date + notice length (days and weeks as calendar days; months as calendar months, ending on the same date or the month end)
Figures are rounded for display. Calculations use the full entered values.
Worked examples
1 month's notice from 15 March ends on 15 April.
1 month's notice from 31 January ends on 28 February (29 February in a leap year).
A 90-day notice from 1 January ends on 1 April in a non-leap year.
What your result means
Days and weeks are added as calendar days; months are added as calendar months, landing on the same date or the last day of a shorter month. Whether the start day counts as day one depends on the contract and employer policy, so confirm the official date.
Common mistakes to avoid
- Entering calendar days when the contract specifies working days.
- Treating 1 month as 30 days or 4 weeks; choose the unit your contract uses.
- Ignoring a clause that counts notice from acknowledgement rather than submission.
- Treating the estimate as an approved release date.
Assumptions and limitations
- Days are calendar days unless your agreement says otherwise.
- A month ends on the same date in the following month, or that month's last day if the date does not exist.
- No public holidays, leave adjustments or notice buyout are applied.
- The calculator does not interpret employment contracts.
Read how PixelDock calculators handle formulas, dates, rounding and privacy.
Frequently asked questions
How do I calculate a 1 month notice period?+
Choose Months, enter 1 and pick the date you hand in your notice. One calendar month ends on the same date next month, so notice given on 15 March ends on 15 April. If that date does not exist, it ends on the last day of the month, so 31 January ends on 28 or 29 February.
How do I calculate a 30 days notice period?+
Choose Days and enter 30. The calculator adds 30 calendar days to the notice date, so notice given on 1 March ends on 31 March. A 30-day notice and a 1-month notice can end on different dates because months have 28 to 31 days.
Is 4 weeks' notice the same as 1 month?+
No. Four weeks is always 28 days, while a calendar month is 28 to 31 days. Use the unit your contract states: choose Weeks for 4 weeks or Months for 1 month.
What is the statutory notice period in the UK?+
After one month in a job, UK employees must give at least one week's notice unless the contract says more. Employers must give at least one week for one month to two years of service, then one week per full year of service up to 12 weeks. Your contract can require longer notice.
What is the usual notice period in India?+
It depends on the employment contract. Notice periods of 30, 60 or 90 days are common in private-sector jobs. Check your appointment letter for the exact length and whether it is counted in days or months.
Should I rely on this for my official last working day?+
Use it as a planning estimate. Your employer may count the notice day itself, adjust for leave or agree to an early release, so confirm the final date with HR.