What this calculator does
This online biweekly pay period calculator projects your next few upcoming pay dates from any single known pay date, by repeatedly adding 14-day increments — useful for budgeting around a paycheck schedule.
Worked example
A known pay date of September 4, 2026 gives upcoming pay dates ofSeptember 18, October 2, and October 16, 2026.
Common mistakes
- Confusing biweekly with semi-monthly. Biweekly always adds exactly 14 days; semi-monthly uses fixed calendar dates that do not follow a strict 14-day gap.
- Forgetting the 3-paycheck months. Twice a year, a biweekly schedule produces 3 paychecks within a single calendar month — plan those months' budgets accordingly.
- Using a holiday-shifted date as the anchor. If your actual pay date shifted due to a bank holiday, use the originally scheduled date for the most accurate ongoing projection.