Maternity Leave & FMLA Calculator

Frequently Asked Questions

How does the calculator estimate my leave end date?

It stacks FMLA (up to 12 unpaid, job-protected weeks for eligible employees at 50⁺-employee firms), employer paid parental leave, short-term disability (typically 6 weeks vaginal / 8 weeks cesarean at 60–70% of pay), and state PFL, then adds them to your start date.

Who qualifies for FMLA?

You must have worked 12 months and 1,250 hours for an employer with 50+ employees within 75 miles. FMLA provides up to 12 weeks of unpaid, job-protected leave in a 12-month period for the birth or bonding with a new child.

How do state Paid Family Leave programs stack?

States like CA, NY, NJ, MA, WA, CT, OR, CO, and DC pay a portion of wages (often 60–90% up to a cap) for 6–12 weeks. PFL usually runs concurrently with FMLA, not on top of it - the calculator lets you toggle that.

Does this replace HR or legal advice?

No - it's an estimate. Eligibility, employer policies, and state rules change frequently and interact in complex ways. Confirm dates and pay with your HR/benefits team and review the FMLA notice you receive. This tool is informational only.

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Educational only. Not medical advice.

Pregnancy & Baby Disclaimer: Educational only. Not medical advice.

This calculator is for general informational and educational purposes only and is not medical advice. It does not diagnose, treat, prevent, or replace care from your OB-GYN, midwife, pediatrician, or other qualified healthcare provider. Always consult your healthcare provider for any decisions about your pregnancy, your baby, or your postpartum recovery.

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How This Calculator Works

US maternity leave is a patchwork - there is no federal paid leave. What you actually get depends on the stack of four overlapping protections: (1) the federal Family and Medical Leave Act (FMLA), which guarantees up to 12 weeks of unpaid, job-protected leave for eligible employees; (2) any employer-paid parental leave your company offers above the federal floor; (3) short-term disability (STD) insurance, which typically replaces a portion of pay for 6–8 weeks (vaginal vs cesarean recovery); and (4) any state paid-leave program in jurisdictions that have enacted one (CA, NJ, NY, RI, WA, MA, CT, OR, CO, and a growing list). This calculator checks your FMLA eligibility, sums the stack, and back-calculates your leave start and end dates from your due date.

Formula / Method

FMLA eligibility = tenure ≥ 12 months AND employer size ≥ 50 within a 75-mile radius AND ≥ 1,250 hours worked in the past 12 months (this tool checks the first two). Eligible → 12 weeks of unpaid, job-protected leave. State leave is the published maximum combined parental leave in the listed state (CA stacks PDL up to 4 months + CFRA 12 weeks + PFL 8 weeks of pay; NJ stacks FLI 12 weeks + TDI 6 weeks). State and FMLA usually run concurrently, so total job-protected time is max(FMLA, state), not their sum. Employer-paid leave above the federal/state floor extends the total. STD pays a percentage of salary during medical recovery (typically 6 wk vaginal, 8 wk cesarean) and usually runs concurrent with FMLA. Total leave span = max(combined protected leave, STD weeks).

Worked Example

You work in California for an 80-person employer, started 14 months ago, due September 15, with 6 weeks STD, 8 weeks employer-paid parental leave, and you plan to start leave on the due date. FMLA: eligible → 12 weeks. California stack: PDL (up to 16 weeks for pregnancy disability) + CFRA (12 weeks) means ≈ 16+ weeks of job protection. Base protection = max(12, 16) = 16 weeks. Employer 8 weeks < 16, so no extension. STD 6 weeks runs inside. Total leave span = 16 weeks. Start = Sept 15, end ≈ January 5. By contrast in a non-PFL state with the same employer-paid 8 weeks, FMLA covers 12, employer is within that, STD pays for 6 - you have 12 weeks job-protected, of which 6 are STD-paid and 8 are employer-paid (4 of those overlapping with STD), leaving 4 weeks unpaid at the end.

Common Mistakes

Assuming FMLA = paid leave - it does not. FMLA only protects your job; pay comes from employer benefits, STD, or state PFL.

Stacking FMLA and state leave additively - they almost always run concurrently, so the longer one is your true cap, not their sum.

Forgetting the 1,250-hour FMLA rule - part-time work below ~24 hr/week for a year can disqualify even at a covered employer.

Treating STD as parental leave - STD covers the birth-parent's medical recovery (typically 6–8 weeks); it does not cover non-birth parents or bonding time.

Starting leave on the due date by default - many providers and employers allow (or require) leave to begin earlier for medical reasons, eating into bonding time after birth.

Tips & FAQ

Should I start leave before the due date? Only about 4–5% of babies arrive on EDD. Starting 1–2 weeks early gives buffer; starting on the due date maximizes post-birth time but risks zero rest if labor is late. What about the non-birth parent? FMLA covers bonding leave for both parents (12 weeks total). State PFL similarly extends to non-birth parents (and adoptive/foster). STD generally does not. Can I extend with PTO or vacation? Most employers allow PTO to run concurrently with unpaid FMLA to bridge income; ask HR. What about the Pregnant Workers Fairness Act (PWFA)? Effective 2023, the PWFA requires reasonable accommodations during pregnancy and postpartum - separate from leave but relevant if you need schedule changes before birth. Should I tell my employer first? FMLA requires 30 days' notice when foreseeable; many companies prefer earlier so they can plan coverage. This calculator gives ballpark figures using public program limits; your actual entitlement depends on your specific employer policies, contract, and state - verify with HR and, for complex cases, an employment attorney.

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