Standard PTO Accrual Rates (40-Hour Work Week)
| Annual Allowance | Weekly Pay (52/yr) | Bi-Weekly Pay (26/yr) | Hourly Accrual Rate |
|---|---|---|---|
| 80 Hours (10 Days) | 1.54 hrs | 3.08 hrs | 0.0385 hrs/hr |
| 120 Hours (15 Days) | 2.31 hrs | 4.62 hrs | 0.0577 hrs/hr |
| 160 Hours (20 Days) | 3.08 hrs | 6.15 hrs | 0.0769 hrs/hr |
How to Calculate Accrued PTO Hours
Accruing Paid Time Off (PTO) is one of the most common employee benefit structures in the United States. Employers reward tenure and hours worked by allocating vacation time progressively rather than upfront. Understanding the math keeps payroll transparent and helps you plan your vacations without risking unpaid time.
1. Fixed Accrual per Pay Period
If you earn a set number of hours per paycheck (e.g. weekly or bi-weekly), use this formula:
Accrued PTO = (Annual PTO Hours ÷ Pay Periods per Year) × Periods Worked
Example: If your company offers 15 days of PTO (120 hours) per calendar year, and you are paid bi-weekly (26 pay periods):120 hours ÷ 26 periods = 4.615 hours accrued per pay period.
2. Accrual based on Hours Worked
If you are an hourly employee, you likely accrue PTO for every hour you work. The formula is:
Accrued PTO = Hourly Accrual Rate × Total Hours Worked
Example: If your accrual rate is 0.05 hours of PTO for every 1 hour worked, and you worked 80 hours in a bi-weekly cycle:0.05 × 80 = 4.00 hours of PTO earned.
Accrual Caps & Rollover Limits
Many companies implement a PTO cap to prevent employees from stacking excessive vacation days year-over-year. Under a capped policy, once your available balance reaches the limit, you stop earning more PTO. Using our calculator, you can input a cap to see exactly when your accruals will freeze if you don't take time off.