Time calculators

PTO Accrual Calculator

Updated Jul 12, 2026 By Jehan Wadia
Rate Formulas
Settings
Display Results In:
Hours Days
Hourly accrual does not apply to annual-rate division.
Your Annual PTO
Your Accrual Rate
PTO Earned Per Period
Accrual Periods / Year
Total Annual PTO
Step-by-Step Solution
Cumulative Accrual Across the Year

Introduction

PTO accrual is how you earn paid time off over time. Instead of getting all your vacation days at once, most employers give you a small amount each pay period. This can make it hard to know how much PTO you have or when you will have enough for a trip.

This free PTO accrual calculator helps you figure it out. It has three modes. Accrual Rate shows how much PTO you earn each pay period based on your yearly total. Future Balance projects how much PTO you will have by a specific date, including any time you have already used. Goal Date tells you exactly when you will reach a PTO target, like the hours you need for a two-week vacation.

The calculator works with all common pay schedules, including weekly, biweekly, semimonthly, and monthly accruals. You can switch between hours and days, add an accrual cap, and even compare two scenarios side by side. Each result comes with a step-by-step breakdown and a chart so you can see how your balance grows over time.

How to Use Our PTO Accrual Calculator

This calculator helps you figure out how fast you earn paid time off, what your future PTO balance will be, or when you will reach a PTO goal. Pick a tab, enter your details, and get your results right away. There are three modes to choose from.

Accrual Rate Tab

Use this tab to find out how much PTO you earn each pay period based on your yearly total.

Display Results In — Choose whether you want to see your results in hours or days. If you pick days, enter how many hours are in your workday so the math converts correctly. If you need help figuring out your daily hours, our work hours calculator can help.

Accrual Frequency — Select how often your employer adds PTO to your balance. Options include daily, weekly, biweekly, semimonthly, or monthly.

Annual PTO — Type the total number of hours or days of PTO you get per year. The calculator divides this by the number of pay periods to show your per-period accrual rate.

Future Balance Tab

Use this tab to project your PTO balance on a future date. It adds up every accrual event between two dates and accounts for time you have already used. If you need to find the exact span between your start and end dates, try our date duration calculator.

Display Results In — Toggle between hours and days. If you pick days, enter your workday length in hours.

Accrual Frequency — Pick how often PTO posts to your balance. If you choose hourly, a work schedule section will appear so you can set your hours per day and which days you work. Our business days calculator can help you count working days in any date range.

On Day / Day of Month — For weekly or biweekly schedules, pick the day of the week PTO posts. For monthly or semimonthly schedules, pick the day of the month.

Start Date of Accruals — Enter the first date of the time period you want to calculate.

End Date of Accruals — Enter the last date of the time period. This must be after the start date.

Accrual Rate Per Period — Type the amount of PTO you earn each accrual period, in hours or days.

Carry-over / Rollover Balance — Enter any PTO you already had saved before the start date, such as hours rolled over from last year.

PTO Already Used — Enter any PTO you have already taken during this period. This amount is subtracted from your final balance.

Accrual Cap — Check this box if your employer limits how much PTO you can save up. Then enter the maximum allowed balance. Accruals will stop once the cap is reached.

Accrual Tiers (Advanced) — Click this option if your accrual rate increases after a certain number of months of service. You can add up to four tiers with different rates.

Compare a Second Scenario — Click this button to enter a second set of inputs side by side. This is useful for comparing two different jobs or policies to see which one gives you more PTO. If you are also comparing compensation, our salary calculator can help you evaluate the full picture.

Goal Date Tab

Use this tab to find out the exact date you will reach a specific PTO balance. The calculator counts accrual periods forward from your start date until your goal is met. You can also use our days until calculator to see how far away that target date is.

Display Results In — Toggle between hours and days. If you pick days, enter how many hours are in your workday.

Accrual Frequency — Select how often PTO is added to your balance.

On Day / Day of Month — Pick the specific day PTO posts each period, just like in the Future Balance tab.

Calculation Start Date — Enter today's date or the date you want to start counting from.

Accrual Rate Per Period — Type how much PTO you earn each period in hours or days.

Carry-over / Rollover Balance — Enter any PTO you already have saved up right now.

PTO Already Used — Enter any PTO you have already taken. This is subtracted from your starting balance before the projection begins.

PTO Goal — Enter the total number of hours or days you want to save up. The calculator will tell you the date you will hit that number and how many accrual periods it will take.

What Is PTO Accrual?

PTO stands for Paid Time Off. It is the time your employer pays you even when you are not at work. You can use PTO for vacation, sick days, or personal time. Our annual leave calculator can help you plan how to spread those days across the year. Accrual means earning a little bit of PTO over time instead of getting it all at once. For example, you might earn a few hours of PTO each pay period. The more you work, the more PTO you build up.

How Does PTO Accrual Work?

Most employers give you a set number of PTO hours per year. That total gets split up across your pay periods. If you get 80 hours of PTO per year and you are paid biweekly (26 times a year), you earn about 3.08 hours every two weeks. Your PTO balance grows with each paycheck until you use it or hit a cap. To see how your biweekly pay period affects your take-home pay alongside PTO, check out our biweekly paycheck calculator.

What Is a PTO Accrual Cap?

Some employers set a cap, which is a limit on how much PTO you can save up. Once your balance hits that cap, you stop earning more PTO until you use some. This is sometimes called a "use-it-or-lose-it" policy. Not all employers have caps, so check with your HR department to find out your rules.

What Is PTO Rollover?

Rollover is the PTO you carry over from one year to the next. Some companies let you keep all your unused PTO. Others let you roll over only a certain number of hours. A few companies reset your balance to zero at the start of each year. Your rollover balance is your starting point when you begin tracking new accruals. For a broader look at managing your time off, our leave calculator covers various leave types and policies.

Common PTO Accrual Frequencies

Employers can add PTO to your balance on different schedules. The most common ones are:

  • Biweekly — every two weeks, 26 times per year
  • Semimonthly — twice a month, 24 times per year
  • Monthly — once a month, 12 times per year
  • Weekly — every week, 52 times per year
  • Daily — each working day, about 260 times per year

The frequency does not change how much total PTO you get in a year. It only changes the size of each accrual. More frequent accruals mean smaller amounts added more often. If you want to understand how your accrual frequency relates to your overall pay schedule, our paycheck calculator breaks down earnings by pay period. You can also use our time card calculator to track the hours you work alongside the PTO you earn.

Why Track Your PTO Accrual?

Keeping track of your PTO helps you plan trips, days off, and time with family. If you know your accrual rate, you can figure out exactly when you will have enough PTO saved for the time off you want. It also helps you avoid losing hours if your employer has a cap or a use-it-or-lose-it policy. For quick PTO lookups without the full accrual projection, our PTO calculator offers a simpler approach. And if you are thinking about how your time off fits into your total compensation, our hourly to salary calculator can help you see the bigger picture.


Formulas used

Per-Period Accrual Rate
\text{Per Period} = \frac{\text{Annual PTO}}{\text{Periods per Year}}
Gross PTO Accrued
\text{Gross Accrued} = \text{Accrual Events} \times \text{Rate per Period}
Net Available Balance
\text{Net Balance} = \text{Rollover Balance} + \text{Gross Accrued} - \text{PTO Used}
PTO Needed to Reach Goal
\text{Needed} = \text{Goal} - (\text{Starting Balance} - \text{PTO Used})
Accrual Periods Required to Reach Goal
\text{Periods} = \left\lceil \frac{\text{Needed}}{\text{Rate per Period}} \right\rceil
Hours-to-Days Conversion
\text{Days} = \frac{\text{Hours}}{\text{Hours per Workday}}

Frequently asked questions

How do I find my PTO accrual rate if I only know my yearly total?

Go to the Accrual Rate tab. Enter your total annual PTO and pick your pay schedule. The calculator divides your yearly total by the number of pay periods to show how much you earn each period.

Can I switch between hours and days in the calculator?

Yes. Each tab has an Hours / Days toggle switch. When you flip to days, a box appears where you enter your workday length in hours. The calculator converts all values for you.

What if my accrual rate changes after a certain number of years?

Use the Accrual Tiers option on the Future Balance tab. Click Add Accrual Tiers, then enter the number of months of service and the new rate. You can add up to four tiers.

How does the accrual cap work in this calculator?

Check the Accrual Cap box and enter your maximum allowed balance. The calculator stops adding PTO once your balance hits that number. Rows in the schedule table that were capped are marked in italic.

What should I enter for the carry-over or rollover balance?

Enter any PTO hours or days you already had saved before the start date. This is usually unused PTO from a prior year that your employer let you keep.

Can I compare two different PTO policies side by side?

Yes. On the Future Balance tab, click Compare a Second Scenario. A new set of inputs appears. Fill in the second policy's details and the calculator shows a table comparing net balance, gross accrued, and total accrual events.

What does the Goal Date tab do?

It tells you the exact date you will reach a specific PTO balance. Enter your current balance, accrual rate, and the number of hours or days you want. The calculator counts accrual periods forward until your goal is met.

What accrual frequency should I pick?

Pick the schedule that matches how often your employer adds PTO to your balance. Check your pay stub or ask your HR department. Biweekly (every two weeks, 26 times a year) is the most common in the United States.

What does the hourly accrual option do?

Hourly accrual earns PTO for each hour you work. When you select it on the Future Balance tab, a work schedule section appears. Enter your hours per day, select which days you work, and add any days off. The calculator multiplies your hourly rate by your daily hours for each working day.

What is the difference between biweekly and semimonthly accrual?

Biweekly means every two weeks, which gives you 26 pay periods per year. Semimonthly means twice a month on set dates, which gives you 24 pay periods per year. Biweekly periods are always 14 days apart, while semimonthly dates can vary in spacing.

Why does my net balance show a negative number?

A negative balance means the PTO you used is more than what you earned plus your rollover. The calculator shows a warning when this happens. You may owe time back to your employer or need to take unpaid leave.

How do I see every accrual date and amount in a list?

On the Future Balance tab, click Show Accrual Schedule below the results. A table appears with each accrual date, the amount earned that period, and your running balance.

Does this calculator account for holidays?

The daily and hourly accrual modes count working days (Monday through Friday by default). You can adjust which days you work and enter a number of days off to subtract holidays. For other frequencies like biweekly or monthly, holidays do not change the accrual schedule.

What happens if I change the hours per workday field?

The Hours Per Workday field only appears when you toggle to days. It controls how hours convert to days. For example, if your workday is 10 hours, then 80 hours of PTO equals 8 days instead of 10.

Can I use this calculator for sick leave accrual?

Yes. Sick leave accrues the same way as PTO in most cases. Enter your sick leave rate and balance instead of your PTO numbers. The math works the same regardless of the leave type.

How accurate is the Goal Date result?

The calculator places your goal date on the exact accrual event where your balance meets or passes your target. The date depends on your accrual frequency and the day of the week or month your employer posts PTO. Make sure these settings match your actual pay schedule for the best accuracy.

What does the chart show?

Each tab has a chart that plots your PTO balance over time. The Accrual Rate tab shows cumulative PTO across the year. The Future Balance tab shows your running balance from start to end date. The Goal Date tab shows your balance growing until it hits your target line.

Do I need to create an account to use this calculator?

No. The calculator runs entirely in your browser. You do not need to sign up, log in, or share any personal information. Your data is not saved or sent anywhere.