By Intious · Updated September 11, 2026
Accrual rate = annual PTO allowance ÷ eligible accrual units. Eighty annual hours equals 3.076923 hours across 26 biweekly periods or 0.0384615 hours per eligible hour on a 2,080-hour basis.
Common PTO accrual rates
| Annual PTO | Weekly ÷ 52 | Biweekly ÷ 26 | Semimonthly ÷ 24 | Monthly ÷ 12 | Per hour ÷ 2,080 |
|---|---|---|---|---|---|
| 40 hours | 0.769231 | 1.538462 | 1.666667 | 3.333333 | 0.019231 |
| 80 hours | 1.538462 | 3.076923 | 3.333333 | 6.666667 | 0.038462 |
| 120 hours | 2.307692 | 4.615385 | 5.000000 | 10.000000 | 0.057692 |
| 160 hours | 3.076923 | 6.153846 | 6.666667 | 13.333333 | 0.076923 |
Choose the denominator from the policy
Use 52, 26, 24 or 12 only when PTO posts at that frequency. For an hours-worked policy, divide by the annual eligible-hour basis stated by the employer. A 2,080-hour denominator is common for a 40-hour, 52-week reference year but is not universal.
Carry precision into the balance
A displayed rate may be rounded while payroll retains more digits. Multiplying a rounded rate by every period can create a small year-end difference. When auditing a balance, compare the stored rate, the posting rule and any final adjustment.
Frequently asked questions
What is the PTO accrual rate for 80 hours a year?
It is about 3.076923 hours per biweekly period, 3.333333 per semimonthly period, 6.666667 per month, or 0.0384615 per eligible hour on a 2,080-hour basis.
How much PTO is accrued per week?
Divide the annual allowance by 52 when the policy accrues weekly. For 120 annual hours, that is about 2.307692 hours per week.
Does overtime earn PTO?
Only if the employer's policy counts those hours as eligible. The mathematical rate cannot determine eligibility.
How do I convert accrued PTO hours to days?
Divide the available hours by the number of hours charged for one absence day. Forty hours is five 8-hour days but four 10-hour days.
Calculate your balance
Choose a pay-period basis or paste variable eligible hours.
Use the PTO Accrual Calculator