How much PTO have you actually earned so far this year? This free PTO accrual calculator estimates your accrued time off based on your annual allotment and pay periods elapsed.
Use 26 pay periods for biweekly pay, 24 for semi-monthly, or 12 for monthly.
This assumes even accrual across the year. Check your specific employer’s accrual schedule and any carryover or use-it-or-lose-it policies.
How the Vacation / PTO Accrual Calculator Works
PTO accrual means you earn paid time off gradually across the year rather than getting your full allotment on January 1st, and this calculator estimates exactly how many days you’ve earned so far based on your annual allotment and how many pay periods have already passed.
Formula: PTO Accrued So Far = (Annual PTO Days ÷ Pay Periods per Year) × Periods Elapsed. Available Now = PTO Accrued So Far − Days Already Used. Year-End Total = Annual PTO Days − Days Already Used.
- Annual PTO days — the total number of paid time off days your employer grants you for the full year
- Pay periods/year — how many pay periods your employer runs annually (26 for biweekly, 24 for semi-monthly, 12 for monthly)
- Periods elapsed — how many of those pay periods have already occurred this year
- Days already used — how many PTO days you’ve already taken so far this year
Example Scenarios
| Annual PTO Days | Periods Elapsed / Total | Days Already Used | PTO Available Now |
|---|---|---|---|
| 15 | 13 / 26 | 3 | 4.5 |
| 20 | 12 / 24 | 5 | 5.0 |
| 10 | 6 / 12 | 2 | 3.0 |
| 25 | 20 / 26 | 10 | 9.2 |
| 12 | 18 / 24 | 4 | 5.0 |
Vacation / PTO Accrual Calculator FAQ
How is PTO accrual calculated if my company doesn’t pay biweekly?
Just change the “Pay periods/year” field to match your schedule: 26 for biweekly, 24 for semi-monthly, or 12 for monthly. The calculator divides your annual PTO days by that number to find how much you earn per period, then multiplies by periods elapsed.Does this calculator account for carryover PTO from a previous year?
No, it only estimates accrual for the current year based on the annual allotment you enter. If you’re carrying over unused days from last year, add them to your “Days already used” figure as a negative adjustment or track them separately.What if my employer front-loads PTO instead of accruing it evenly?
This calculator assumes even, linear accrual across all pay periods, which is the most common method. If your employer grants the full annual balance upfront, this tool won’t reflect that — check your HR policy or paystub for your actual accrual method.Why does “Available Now” differ from the PTO balance shown in my payroll system?
Payroll systems sometimes round differently, apply accrual caps, or include pending time-off requests that haven’t posted yet. Treat this calculator’s result as an estimate and confirm exact balances with HR or your paystub.How many pay periods should I use for semi-monthly pay?
Use 24 pay periods per year for semi-monthly pay (paid on two fixed dates each month, like the 1st and 15th). Biweekly pay, which happens every two weeks, uses 26 pay periods instead.Can I use this to check if I’ve used more PTO than I’ve actually earned?
Yes. If “Available Now” comes out negative, it means the days you’ve already used exceed what you’ve accrued through this point in the year, which is worth flagging with HR before it affects your next paycheck.Related Calculators
If you’re tracking your PTO balance alongside your pay, the salary calculator and paycheck calculator can help you see the full picture of your compensation, while the take-home pay calculator shows what actually lands in your bank account after taxes and deductions.