How to calculate pto accrual
Balance = current + (weeks ÷ 52 × periods per year × rate) − planned use
Worked example. PTO balance then: 48 hours.
Example inputs — Current PTO balance (hours): 24; Hours accrued per pay period: 4; Pay periods per year: Biweekly (26); Weeks from now to check: 12; Hours you plan to use before then: 0. Starting values are illustrative.
From George Guju, founder of Calculyn · Educational calculator guidance, not professional advice.
How it works
PTO builds up each pay period. Multiply your per-period accrual by how many periods pass before your target date, add your current balance, and subtract anything you'll use in between.
Assumptions & limitations
- Results are rounded for display.
Formula and assumptions reviewed October 2026 by the Calculyn team. How we build our calculators
Frequently asked questions
What about accrual caps?
Many employers cap how much PTO you can bank — check your policy and treat the cap as your ceiling.
Is PTO paid out if I leave?
Depends on your state and company policy; some states require payout of accrued vacation.