PTO Balance Projection Calculator
Start from today’s PTO balance, add the accruals still to come, and take off the time you plan to use, to see your balance on any future date — and whether it stays above zero along the way.
PTO Balance Projection Calculator calculates in your browser.
See your PTO balance before you book the time off
A pay stub shows the PTO you have today, but planning a trip means knowing what you will have on the day it starts — after the accruals between now and then, and after any other days you have already promised yourself. This calculator lays those dates out in order: each accrual, each planned day off, and the balance after each. It flags the date a plan would push your balance below zero, and shows the hours a balance cap would keep out if you let time pile up.
How to use the PTO Balance Projection Calculator
- Enter your current PTO balance and the date it is from — usually today or your last pay date.
- Choose how often PTO is added and the next date it will be. Semi-monthly PTO is added on the 15th and the month’s last day.
- Enter the hours added each time, or an annual allowance to spread across each year’s accrual dates.
- Choose the date to project to, add a cap if your policy has one, and enter up to four planned days or blocks of time off.
- Read the projected balance and the date-by-date table. Copy Result copies the table for a spreadsheet.
The formula
Projected balance = current balance + PTO added − planned time off
PTO added stops while the balance is at the cap
On a day with both, time off is taken before that day’s PTO is added
In the third example the balance drops to −12 hours on October 20 before accruals bring it back; the calculator warns about that even though the final balance is positive. In the fourth, the cap keeps out 68 of the 78 hours that would otherwise have been added.
| Balance on Oct 8, 2026 and accrual | Plan (to Apr 8, 2027 unless shown) | Projected balance |
|---|---|---|
| 40 hours; 4 hours every 2 weeks | No time off | 92 hours |
| 40 hours; 4 hours every 2 weeks | 40 hours off on Dec 21, 2026 | 52 hours |
| 8 hours; 4 hours every 2 weeks | 24 hours off on Oct 20, 2026 | 36 hours |
| 150 hours; 6 hours every 2 weeks; 160-hour cap | No time off | 160 hours |
| 0 hours on Dec 31, 2026; 120 hours a year, biweekly from Jan 1, 2027 | No time off, to Dec 31, 2027 | 120 hours |
Calculated on your device
- The calculation runs in your browser as you type; nothing is sent to a server.
- Your balance, dates, and plans are not sent to Looty Tools or stored.
- The calculator area is masked from session-recording analytics, so what you enter isn’t captured in recordings.
Limitations
- This follows the accrual rule you enter. Employers set their own accrual rates, waiting periods, caps, carryover limits, and rounding, and some state and local laws set minimums for paid sick leave. Check your employer’s written policy.
- Every accrual adds the same rate. A raise in your accrual rate on a work anniversary, a year-end carryover limit, or a use-it-or-lose-it reset is not applied — project to the day before the change and start again from there.
- An annual allowance is spread over the accrual dates in each calendar year. Up to four planned time-off entries and 260 accruals per projection.
- A negative balance is shown as it would be, not stopped at zero; whether you can borrow PTO is up to your employer.
Related calculators
- Days Worked Per Year CalculatorCount how many days fall on a work schedule in a year.
- PTO Accrual CalculatorEstimate PTO earned from the accrual rule you enter.
- PTO Payout CalculatorEstimate a PTO payout from the balance and rate you enter.
- Days Between Dates CalculatorCount the days from one date to another.
Guides
- Projecting a PTO BalanceWork out your PTO balance on a future date by hand: count the accruals still to come, subtract planned time off, and check the low point before you book.
- Hitting a PTO CapFind the date your PTO balance reaches its cap, how many hours staying there costs, and how a cap differs from carryover limits and use-it-or-lose-it.
- Negative PTO BalancesHow a PTO balance goes below zero, how long it takes to earn back, what advance policies allow, and what happens if you leave with a negative balance.
PTO Balance Projection Calculator FAQ
- How do I work out my PTO balance on a future date?
- Start with today’s balance, add every accrual between now and that date, and subtract the time off you plan to take. 40 hours today plus 13 biweekly accruals of 4 hours, with no time off, is 40 + 52 = 92 hours.
- Will I have enough PTO for a vacation?
- Enter the vacation as planned time off on the date it starts. The table shows your balance after every accrual and every day off, and the calculator warns you if the balance would drop below zero.
- What happens to my balance when I hit the PTO cap?
- Accrual stops while the balance is at the cap, so those hours are not added. Planned time off brings the balance down and accrual resumes; the table shows how many hours the cap kept out.
- If time off and an accrual fall on the same day, which comes first?
- This calculator takes the time off first and then adds that day’s PTO. Payroll systems post them in different orders, which can move a balance by one accrual for a day but not the final total.
- Can my PTO balance go negative?
- Only if your employer allows it — some let you borrow against future accruals, many don’t. The calculator shows a negative balance rather than stopping at zero, so you can see how far short you would be.
- Are the hours and dates I enter sent anywhere?
- No. The calculation runs in your browser as you type. Your hours, dates, and results are not sent to Looty Tools or stored, and the calculator area is masked from session-recording analytics. Refreshing the page clears it.
