FMLA Rolling Calendar Calculator
without the guesswork.
FMLA 12 Week Rolling Period Calculator — Apply the employer's confirmed FMLA measurement method and leave ledger to calculate an hour-based 12-workweek balance. Uses a focused calculator with visible assumptions. Inputs stay in your browser.
The balance is measured in hours so intermittent leave can be included. The employer's designated 12-month method and leave ledger control the calculation.
Context matters.
- Federal eligibility can depend on employer coverage, 12 months of service, 1,250 hours worked and 50 employees within 75 miles, with public-agency and school rules.
- If an employer has not selected a valid method, DOL says the method most beneficial to the employee may apply; employers generally must give notice before changing methods.
- Military caregiver leave uses a separate single 12-month period and up to 26 workweeks, so this 12-workweek balance is intentionally not applied.
Sources & scope
This page shows the source trail, jurisdiction and review date alongside the result. Always confirm time-sensitive rules with the linked authority.
What to know before using the result.
Why does the calculator ask for the employer's 12-month method?
DOL permits calendar-year, fixed-year, forward and rolling-backward methods. The same leave history can produce a different balance under each method.
Why is the balance shown in hours?
Intermittent or reduced-schedule leave is often recorded in hours. Multiplying the normal workweek by 12 makes the entered employer ledger directly comparable.
Does an available balance prove I am eligible for FMLA leave?
No. Employer coverage, months of service, hours worked, the 50-within-75-miles test, a qualifying reason and required certification can still control.