Accrual Rate Calculator
Your offer letter says “15 days of PTO per year” and that sounds simple until payroll asks for your accrual rate per hour worked, your manager asks what lands in each paycheck, and you start wondering what the hours sitting in your balance are actually worth. One annual number has to serve all three questions, and doing the conversions by hand invites exactly the small errors that turn into payroll disputes.
The Accrual Rate Calculator below turns your annual PTO into every form HR and payroll use: the rate per hour worked, the amount per pay period, per month and per week, your days off per year, the dollar value of your leave at your hourly rate, and a countdown showing when you will hit your accrual cap and stop earning. Tenure quick-set buttons cover the common U.S. benchmarks if you only know your years of service.
Quick Answer
Key takeaways
- Two divisions run the whole calculator: annual PTO / hours worked gives the per-hour rate, and annual PTO / pay periods gives the per-check amount.
- 2,080 is the standard full-time year (40 x 52). Part-time staff should enter real hours: the per-hour rate stays fair and everything else scales.
- At the cap, accrual stops. The countdown in the result box tells you when to schedule time off so you never donate earned hours back.
- Benchmarks are policy, not law: 80 hours at entry level, 120 hours at 1 to 5 years and 160 hours at 5+ years are widely published U.S. averages. Your handbook always wins.
The formula, step by step
Start with the annual allotment in hours. Convert days to hours first: days x hours per workday. Fifteen days at 8 hours a day is 120 hours. If you only know your tenure, the quick-set buttons above load the common U.S. benchmark for your band.
Divide by hours worked for the per-hour rate. Annual PTO / annual hours worked. This is the rate payroll systems use for hourly and part-time staff, because it pro-rates itself: work fewer hours, earn proportionally less PTO.
Divide by pay periods for the per-check amount. Annual PTO / periods per year: 26 for biweekly, 24 for semimonthly, 52 for weekly, 12 for monthly. Monthly accrual is always annual / 12 and weekly is annual / 52, whatever your pay schedule.
Price it and project the cap. Dollar values are hours x hourly rate. Time to cap is (cap minus current balance) / monthly accrual, which is the date your balance stops growing if you take no time off.
Worked example: 80 hours a year, paid biweekly
An employee earns 80 hours of PTO per year, works 2,080 hours, is paid biweekly, earns $30 an hour, holds a 40-hour balance and faces a 120-hour cap. Here is exactly what the calculator returns for those pre-filled defaults, verified against its code:
| Figure | Calculation | Value |
|---|---|---|
| Accrual rate per hour worked | 80 / 2,080 | 0.038462 |
| Accrued per pay period | 80 / 26 | 3.077 hours |
| Accrued per month | 80 / 12 | 6.667 hours |
| Accrued per week | 80 / 52 | 1.538 hours |
| Days off per year | 80 / 8 | 10.00 days |
| Annual PTO value | 80 x $30 | $2,400.00 |
| Current balance value | 40 x $30 | $1,200.00 |
| Time to cap | (120 - 40) / 6.667 | 12.0 months |
Read the per-hour rate as a pace: at 0.038462, every 26 hours on the clock earns one hour off, so a full week of vacation (40 hours) takes about half a year to bank. That pace is also what makes the cap date real. Twelve months from now the balance hits 120 hours and accrual pauses, so a week taken before that date is worth more than a week taken after it: before, it restarts the earning; after, the paused months are gone for good. Employees tracking a balance against actual absences can cross-check with an absence rate calculator, and anyone costing out a full payroll can pair this with an absentee payroll calculator.
Common accrual methods and U.S. tenure benchmarks
Employers deliver the same annual allotment in different rhythms, and the rhythm changes what you can take early in the year even when the yearly total is identical.
| Method | How it works | Best for |
|---|---|---|
| Per hour worked | Every hour worked earns a fixed slice of PTO (the rate this calculator leads with) | Hourly and part-time staff; self-prorating |
| Per pay period | A fixed amount lands each paycheck | Salaried staff; simplest to administer |
| Annual lump sum | The whole allotment lands on January 1 or the work anniversary | Simple policies; generous early in the year |
| Tenure-based tiers | The rate steps up at service milestones | Retention-focused employers |
| Unlimited PTO | No accrual at all; time is taken by approval | Averages are tracked for planning instead |
| Years of service | Typical PTO per year | Accrual per hour worked | Per biweekly period |
|---|---|---|---|
| 0 to 1 | 80 hours (10 days) | 0.038 | 3.08 hours |
| 1 to 5 | 120 hours (15 days) | 0.058 | 4.62 hours |
| 5+ | 160 hours (20 days) | 0.077 | 6.15 hours |
These tiers track the pattern in the Bureau of Labor Statistics Employee Benefits Survey paid leave tables, which show average paid vacation days rising with service from about 10 days after one year toward 20 days after twenty years. Treat the table as a negotiating reference, not an entitlement: the Bureau of Labor Statistics measures what employers offer, and your own policy document sets your actual rate. Hours questions often sit next to pay questions, so the overtime hours calculator is the natural companion when extra hours change the hours-worked denominator, and a prorate salary calculator covers the matching salary side for mid-year starts.
Caps, carryover and use-it-or-lose-it: where accrual gets lost
Rules that protect your balance
- Carryover up to a cap: unused hours roll forward until the ceiling, which this calculator counts down to.
- Payout states: several states treat accrued PTO as earned wages that must be paid at separation.
- Front-loading with a true-up: some employers advance the year but reconcile against the accrual rate at exit.
Rules that quietly cost you hours
- Hard caps with no reminder: accrual pauses at the ceiling and the paused hours never come back.
- Use-it-or-lose-it deadlines where state law allows them: unspent hours expire on a fixed date.
- Counting paid holidays inside hours worked, which inflates the denominator and understates the per-hour rate.
What competing calculators miss
We checked the top-ranking PTO tools and guides for this search before rebuilding this page. The division itself is universal. What separates the tools is everything payroll and employees argue about after the division.
Winning move 1: every cadence at once, including the per-hour rate. The best-known PTO calculators lead with a per-paycheck figure and stop, or project a future balance without ever stating the per-hour accrual rate that payroll systems actually store. This calculator returns per hour, per period, per month, per week and days per year from one entry, so the number on your pay stub, the number in the HR system and the number in your handbook can be checked against each other.
Winning move 2: dollar values and a cap countdown. Ranking competitors treat PTO as pure time. But a balance is also money: at separation in payout states it is paid in cash, and at the cap it silently evaporates. This tool prices the annual allotment and the current balance at your hourly rate, and counts down the months until the cap stops your accrual, which is the single most actionable number on the page and one no top competitor shows.
Winning move 3: tenure quick-sets tied to published benchmarks. Most tools assume you already know your annual hours. Many employees only know their years of service. The quick-set buttons load the widely published U.S. tiers (80, 120 and 160 hours) in one click, and the benchmark table shows the per-hour rate each tier implies, so a job offer can be sanity-checked on the spot.
Frequently asked questions
Yes. Enter your actual annual hours instead of 2,080; the per-hour rate stays fair and per-period amounts scale with hours worked.
Generally no. Use actual work hours unless your policy says otherwise. Including paid holidays inflates the denominator and understates your accrual rate.
2,080 hours: 40 hours a week times 52 weeks. It is the default in this calculator and the denominator behind the common 0.0577 example for a 120-hour allotment.
You stop earning until you use PTO and drop below the cap. The time-to-cap countdown in the result shows when that happens at your current pace, so you can schedule time off before hours start evaporating.
It depends on the policy and the state: rollover up to a cap, payout at separation, or use-it-or-lose-it where allowed. Several states treat accrued PTO as earned wages. Check your handbook and state labor rules.
No. Accrual rate is how fast you earn paid time off. Accrued interest is unpaid interest building on a loan or bond. The shared word is accrual: value earned gradually over time before it is paid.
Fifteen days is 120 hours. Paid biweekly, that is 120 / 26 = 4.615 hours per paycheck. Paid semimonthly it is 120 / 24 = 5.000 hours, and monthly it is 10.000 hours. Enter 120 above to see every cadence at once.
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References
- U.S. Department of Labor, "Vacation Leave" - Wage and Hour Division guidance confirming that the Fair Labor Standards Act does not require paid vacation, so accrual rules come from employer policy and state law. U.S. Department of Labor: Vacation Leave. Accessed October 2026.
- U.S. Bureau of Labor Statistics, "Employee Benefits in the United States" news release, Table 6 - average paid vacation days by years of service, the source behind the tenure tiers used in this calculator. BLS: Employee Benefits in the United States. Accessed October 2026.
- U.S. Office of Personnel Management, "Annual Leave" fact sheet - the federal accrual model, with rates that step up at 3 and 15 years of service, a worked example of tenure-based accrual. OPM: Annual Leave Fact Sheet. Accessed October 2026.
- U.S. Bureau of Labor Statistics, "National Compensation Survey: Employee Benefits" - the survey program measuring paid leave access and amounts across U.S. employers. BLS: National Compensation Survey, Employee Benefits. Accessed October 2026.
- Society for Human Resource Management, "Paid Time Off Programs and Practices" resource hub - employer practice guidance on accrual methods, caps and carryover rules. SHRM: Benefits and Compensation Resources. Accessed October 2026.