PTO Accrual Calculator — Calculate PTO & Vacation Time
Calculate PTO accrual per pay period and estimate how much paid time off you have earned. Enter your annual PTO hours, accrual frequency, completed periods, carryover, usage, and optional cap to estimate your available balance.
Accrual vs. payout: Use this page to estimate PTO hours earned and available. If you already know your unused PTO hours and want their dollar value, use the PTO Payout & Unused Vacation Pay Calculator.
PTO earned per accrual period: —
Equivalent PTO accrual per hour worked: —
PTO earned in completed periods: —
Estimated available PTO balance: —
Equivalent PTO days: —
This model assumes a fixed annual PTO allowance earned evenly across the accrual periods you select.
On this page: PTO formula · Biweekly example · Accrual vs. payout · Policy differences · FAQ
How to Calculate PTO Accrual
For a plan that grants a fixed annual number of PTO hours evenly through the year, the core calculation is annual PTO hours ÷ accrual periods per year.
To express the same annual allowance as an hourly accrual rate, the calculator uses annual PTO hours ÷ (scheduled hours per week × 52). For example, 120 PTO hours ÷ 2,080 scheduled hours is about 0.0577 PTO hours per hour worked, or roughly 1 PTO hour for every 17.33 scheduled hours.
The calculator then estimates starting balance + PTO earned − PTO used. If you enter an accrual cap, it limits the balance after adding earned hours and before subtracting usage.
Some plans accrue PTO by hours worked instead of by pay period, delay accrual during an introductory period, use tenure-based tiers, pause accrual at a cap, or treat different leave banks separately. Use your employer's actual policy if it differs from this model.
Biweekly PTO Accrual Example
Suppose your plan provides 120 PTO hours per year and accrues over 26 biweekly periods.
- 120 ÷ 26 = 4.62 PTO hours earned per pay period
- At 40 scheduled hours/week: 120 ÷ 2,080 = about 0.0577 PTO hours per hour worked
- After 10 completed periods: about 46.15 hours earned
- With 8 carryover hours and 16 hours already used: about 38.15 hours available
- At 8 hours per workday: about 4.77 PTO days
The result is a planning estimate. Payroll systems can round accruals at each period, which can create small differences from calculating all periods at once.
PTO Accrual vs. PTO Payout
| Question | Best tool |
|---|---|
| How many PTO hours have I earned? | PTO Accrual Calculator |
| What is my estimated PTO balance after carryover and usage? | PTO Accrual Calculator |
| What are my unused PTO hours worth in dollars? | PTO Payout Calculator |
| Should PTO be included in my final paycheck? | Final Paycheck Calculator plus the applicable law/policy |
PTO Policies Can Change the Accrual Result
A PTO calculator should not assume every employer uses the same policy. Check whether your plan has a waiting period, front-loaded time, an accrual cap, carryover limits, tenure tiers, part-time rules, or accrual based on hours actually worked.
At the federal level, the Fair Labor Standards Act does not require paid vacation or general-purpose PTO. State and local leave laws, employer policies, collective agreements, and government-contract rules can create different requirements.
California is one example of why policy details matter: the state does not require employers to offer vacation, but when an established vacation plan exists, earned vacation is treated as wages and accrues as labor is performed. California also permits reasonable accrual caps rather than forfeiture of already earned vacation.
Official references: U.S. Department of Labor — Vacation Leave · California DIR — Vacation FAQ. For general use, check the policy and law that apply where you work.
What to Check Against Your PTO Balance
- Your annual PTO or vacation allowance.
- The number of accrual periods in the plan year.
- Your starting or carried-over hours.
- PTO already taken.
- Any cap, waiting period, or tenure-based accrual tier.
- Your latest pay stub or HR portal balance.
Frequently Asked Questions
What is a PTO accrual calculator?
A PTO accrual calculator estimates how much paid time off you earn over time under a stated accrual policy. This tool can estimate PTO earned per pay period, PTO earned so far, available balance after usage, and the equivalent number of days based on your hours per workday.
How do I calculate PTO accrual per pay period?
For a fixed annual allowance, divide annual PTO hours by the number of accrual periods per year. For example, 120 annual PTO hours divided by 26 biweekly periods equals about 4.62 PTO hours per pay period.
How do I calculate a PTO accrual rate per hour worked?
Divide the annual PTO allowance by the scheduled hours in the year. For example, 120 PTO hours divided by 2,080 scheduled hours equals about 0.0577 PTO hours per hour worked. Confirm whether your actual policy accrues on scheduled hours, hours actually worked, or another basis.
How is PTO accrual different from a PTO payout?
PTO accrual answers how much time you have earned or have available. A PTO payout calculates the dollar value of unused hours when payout is required or provided. Use the PTO Payout Calculator when you already know the unused hours you want to value.
Can I include carryover and PTO already used?
Yes. Enter a starting or carryover balance and the PTO hours already used. The calculator adds accrued hours to the starting balance, subtracts usage, and shows the remaining estimated balance.
What does a PTO accrual cap do?
An accrual cap is a maximum balance under an employer policy. If you enter a cap, this calculator limits the accrued balance before subtracting PTO used. The policy may apply caps or pauses differently, so compare the estimate with the actual plan terms.
Does every employer have to provide PTO?
No federal law generally requires employers to provide paid vacation or general-purpose PTO, although state or local leave laws and specific employment arrangements can create requirements. For example, California does not require an employer to offer vacation, but earned vacation under an established plan is treated as wages and accrues as labor is performed.
Is this calculator a legal determination of my PTO balance?
No. It is a mathematical estimate based on the annual allowance, accrual frequency, completed periods, carryover, usage, cap, and workday length you enter. Your employer policy, collective agreement, jurisdiction, waiting periods, tenure tiers, and leave rules can produce a different balance.
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