How to Use This PTO Accrual Calculator
Choose the accrual method that matches your employer policy: hours earned per pay period, days earned per year, or hours earned per hour worked. Then enter the number of pay periods completed, hours worked, or accrual rate needed for that method.
The result estimates accrued PTO, equivalent days, PTO already used, and available PTO. It does not apply every employer-specific cap or rounding rule.
PTO Accrual Formula
Days per year method: annual PTO hours = annual PTO days x hours per workday. Accrued PTO = annual PTO hours / pay periods per year x completed pay periods.
Hours per pay period method: accrued PTO = PTO hours earned per pay period x completed pay periods.
Hours per hour worked method: accrued PTO = hours worked x accrual rate per hour.
Available PTO = accrued PTO - PTO already used.
Worked Example
Example: an employee receives 10 PTO days per year, works 8-hour days, is paid biweekly, and has completed 6 pay periods.
Annual PTO hours are 10 x 8 = 80. Biweekly accrual is 80 / 26 = 3.08 hours per pay period. After 6 pay periods, estimated accrued PTO is 18.46 hours. If 8 hours were used, available PTO is 10.46 hours.
Policy and Legal Caution
PTO accrual is usually controlled by employer policy, but state or local rules can affect how earned time is handled. Some policies also treat vacation, sick leave, personal leave, and PTO differently.
Use this calculator as a private estimate only. Your payroll system, written policy, and current state guidance are the sources to verify before relying on a balance.