PTO & Final Paycheck Calculators
Use this sick leave accrual calculator to estimate sick time earned from hours worked, pay period accrual, or an annual/frontloaded sick leave allowance.
Last updated: June 2026
Estimate only: This calculator or guide provides an estimate or general information only and is not legal, tax, payroll, or financial advice. PTO, vacation, sick leave, payout, final paycheck, and tax results can depend on state law, employer policy, employment agreement, payroll rules, tax rules, deductions, and individual facts. Verify with official sources, your employer, or a qualified professional.
Browser-based estimate
Estimate sick leave earned by hours worked, pay period accrual, or an annual/frontloaded allowance.
Choose the method that matches your employer policy: hours worked, sick leave hours per pay period, or an annual/frontloaded allowance. The calculator then subtracts sick leave already used and converts available hours into days.
The default hours-worked divisor is 30, which reflects a common formula of 1 hour earned for every 30 hours worked. You can edit the divisor if your policy or local rule uses a different rate.
Hours worked method = hours worked / accrual divisor.
Pay period method = sick leave hours per pay period x number of pay periods.
Annual/frontloaded method = annual sick leave allowance.
Available sick leave = earned sick leave - sick leave used.
The hours-worked method is useful when a policy says employees earn sick leave based on actual hours worked. If the rule is 1 hour for every 30 hours worked, an employee who worked 300 hours would estimate 10 sick leave hours.
Part-time, variable-hour, and hourly employees often need this method because their sick leave may grow with actual hours instead of a fixed pay-period amount.
Some employers provide a set number of sick leave hours each paycheck. In that case, multiply sick leave hours per pay period by the number of completed pay periods.
Example: 1.54 sick leave hours per biweekly paycheck for 10 pay periods equals 15.4 sick leave hours before subtracting used sick time.
Frontloaded sick leave means a set amount is made available at the start of a year, benefit year, or employment period. Accrued sick leave means the balance grows over time.
Frontloading can make the balance look simple, but policies may still have rules for eligibility, carryover, caps, usage increments, and separation from employment.
Sick leave, PTO, and vacation can use similar hour math but different policy treatment. Read the PTO vs vacation pay guide before assuming unused sick leave is treated like vacation payout.
If your employer uses one combined PTO bank, ask whether that bank satisfies sick leave rules and whether any portion is restricted to sick leave uses.
Paid sick leave rules can be set by state law, city ordinance, employer policy, union agreement, or a combination of those sources. Some rules cover accrual rates, carryover, annual caps, usage reasons, notice, documentation, and pay-rate calculations.
For California-specific sick leave math, use the California sick leave accrual calculator. For general PTO accrual, use the PTO accrual calculator.
Example: an employee works 300 hours and earns 1 sick leave hour for every 30 hours worked. Sick leave earned is 300 / 30 = 10 hours.
If the employee used 2 hours, the available estimate is 8 hours. With an 8-hour workday, that equals 1 sick leave day.
Use the method in your employer policy. A common hours-worked method divides hours worked by an accrual divisor, such as 30. Pay-period and frontloaded methods use different math.
It means every 30 hours worked earns 1 hour of sick leave. For example, 300 hours worked divided by 30 equals 10 sick leave hours.
Not always. Some employers combine sick leave with PTO, but many track it separately because state or local sick leave rules may apply.
No. Vacation is usually time away for rest or personal use. Sick leave is usually for illness, medical care, or covered family needs.
Often unused sick leave is treated differently from vacation or PTO. Do not assume payout unless the policy or applicable rule clearly says so.
Some states and cities have their own paid sick leave rules, accrual rates, carryover rules, caps, and covered-use requirements.
Estimate only: This calculator or guide provides an estimate or general information only and is not legal, tax, payroll, or financial advice. PTO, vacation, sick leave, rollover, payout, and final paycheck rules can depend on state law, employer policy, employment agreement, local rules, and individual facts. Verify with official sources, your employer, or a qualified professional.