How pto accrual works
PTO accrual means you build up paid time off as you work. The calculator has two modes. In per hour worked mode, you multiply an accrual rate by the hours you worked. In per pay period mode, you multiply a rate by the number of pay periods. You can add a starting balance and an optional cap. The result shows hours and 8-hour days.
One fact matters here: a standard full-time year is 40 hours times 52 weeks, which is 2,080 hours. That number is the base for turning an annual PTO grant into an hourly rate. If you earn 80 hours of PTO a year, divide 80 by 2,080. The rate is 0.0385 hours per hour worked. Over a biweekly paycheck, that is about 3.08 hours.
Accrual is different from front-loading. With front-loading, your employer gives you all your PTO hours at the start of the year. With accrual, you earn them as you go. Your employer's policy decides which one you have.
Pto accrual rate and the maths
The accrual rate is the number of PTO hours you earn for each hour worked or each pay period. Here is how to find it from an annual grant:
- Write down your annual PTO hours. For example, 80 hours.
- Divide by 2,080 if you work full time. 80 / 2,080 = 0.0385.
- Multiply by your hours worked. 0.0385 x 80 hours in a biweekly period = 3.08 hours.
If your employer gives PTO per pay period, the maths is simpler. A rate of 3.08 hours per biweekly period times 26 periods equals 80.08 hours a year. Small rounding differences are normal.
Use the hours calculator to get your exact hours worked first. Then enter that number here.
Worked example
You earn 80 hours of PTO a year. You work 2,080 hours. Your accrual rate is 0.0385 hours per hour worked. In a biweekly pay period you work 80 hours. You earn 0.0385 x 80 = 3.08 hours. Over 26 pay periods, that is 80.08 hours. If you already had 16 hours in your starting balance, your new balance is 19.08 hours, or about 2.39 eight-hour days.
Caps, carry-over and payout
Many employers put a cap on PTO balances. A cap is the most hours you can hold at one time. Once you reach the cap, you stop earning more until you use some. The calculator lets you enter a cap so you can see when you hit it.
Carry-over rules also vary. Some employers let you carry unused hours into the next year. Others use a use-it-or-lose-it policy, where unused hours expire. Some states limit use-it-or-lose-it policies. Check your employer's policy and your state's rules.
Payout on leaving depends on state law and your employer's policy. Some states require payout of earned vacation time. Others do not. This calculator does not assume any payout rule. It only shows hours earned.
Accrual can also pause during unpaid leave. If you take unpaid time off, you may not earn PTO for those hours. Your employer's policy will say.
What the result means for your paycheck
PTO hours are not extra pay on top of your salary. When you use PTO, you are paid for hours you did not work. The hours come from your balance. Your gross pay stays the same if you are full time and use PTO for a full week.
If you leave with unused PTO, your final paycheck may or may not include it. That depends on state law and policy. The result here is an estimate. Your employer's payroll system is the record.
To see how PTO hours affect a paycheck, try the paycheck calculator. For salaried workers, the salary calculator shows how an annual figure breaks into pay periods. If you are paid for overtime, the overtime calculator handles the 1.5x rate.
One more note: PTO accrual is not the same as a raise. A raise changes your hourly rate. PTO accrual changes your time off balance. The pay raise calculator covers that separate maths.
Quick reference
| Annual PTO hours | Per hour worked (2,080 hours) | Per biweekly period (80 hours) |
|---|---|---|
| 40 | 0.0192 | 1.54 |
| 80 | 0.0385 | 3.08 |
| 120 | 0.0577 | 4.62 |
| 160 | 0.0769 | 6.15 |
These figures assume a full-time schedule. If you work part time, divide your annual PTO grant by your actual annual hours. The rate will be higher per hour worked.