Overtime Pay Calculator for FLSA, California & Multi-Rate Work

TL;DR. US federal law (FLSA) requires 1.5× the regular rate for hours over 40/week. California and a few other states require double-time over 12/day. This tool also handles weighted-average for multi-rate jobs and the 0.5× fluctuating workweek (FWW) method.

Compute overtime under all four standard FLSA methods: (a) straight 1.5× over 40 hrs/wk, (b) California-style double-time over 12 hrs/day, (c) weighted-average for employees working multiple rates in one week, and (d) the fluctuating workweek (FWW) method where the salary covers all hours and the OT premium is just 0.5×.

Inputs Explained

  • Regular Hourly Rate: Your base hourly pay (or the implied rate from a salary in FWW mode).
  • Standard Hours / Week: Hours worked at the straight rate; usually 40.
  • Overtime Hours / Week: Hours worked beyond the standard threshold.
  • Daily Hours (CA mode): For double-time mode: hours worked in a single day (over 12 = 2.0× in California).
  • Method: FLSA Standard, California Daily DT, Weighted Average, or FWW (0.5×).
  • Bonus Inclusion: Whether to include non-discretionary bonuses in the regular rate (FLSA requires inclusion of most bonuses).

How it Works

FLSA Standard: OT pay = OT hours × (regular rate × 1.5).
California: 1.5× over 8 hrs/day or 40 hrs/wk; 2.0× over 12 hrs/day OR after 8 hrs on the seventh consecutive workday.
Weighted average: regular rate = total weekly comp / total weekly hours, OT premium = 0.5× weighted rate × OT hours.
FWW (Belo plan): for salaried non-exempt with hours that fluctuate; OT pay = 0.5× (weekly salary / hours that week) × OT hours.

The Formula

FLSA:           OT_pay = OT_hours × rate × 1.5
California DT:  hours 8–12/day → 1.5×;  hours >12/day → 2.0×;  >40/wk → 1.5×
Weighted:       reg_rate = total_pay / total_hours;  OT_pay = OT_hrs × 0.5 × reg_rate (premium only)
FWW:            implicit_rate = weekly_salary / weekly_hours;  OT_pay = 0.5 × implicit_rate × OT_hrs

Last reviewed: May 2026

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Overtime Pay Calculator

FLSA 1.5×, double-time, weighted-average, fluctuating workweek

$
hrs
Total Weekly Pay (incl. OT)

Frequently Asked Questions

Under FLSA, non-exempt employees must be paid 1.5x their regular rate for hours worked beyond 40 per week. Example: $20/hour regular, 50 hours worked. Pay = (40 × $20) + (10 × $30) = $800 + $300 = $1,100. The "regular rate" includes most non-discretionary bonuses. Some states (California, Alaska, Nevada) require daily overtime — over 8 hours/day. State law applies if more generous than federal. Exempt employees (executive, administrative, professional with certain salary thresholds) aren't entitled to overtime. The calculator handles federal and California-specific rules.

Time and a half = 1.5 × Regular Rate × Overtime Hours. Example: $25/hour regular rate, 8 OT hours = 8 × $25 × 1.5 = $300 in overtime pay. Total weekly pay (40 regular + 8 OT) = $1,000 + $300 = $1,300. The "regular rate" must include non-discretionary bonuses (like attendance bonuses) when calculating OT — many employers miss this. Discretionary bonuses (like a holiday gift) don't increase the regular rate. Some industries have specific rules (transportation, agriculture). The calculator handles different rate structures.

Calculate hours worked beyond 40 in the week, multiply by 1.5x the regular rate. Example: 45 hours at $18/hour. Regular pay = 40 × $18 = $720. OT = 5 × $27 = $135. Total = $855. Some employers calculate OT differently if the employee has multiple rates or earns commissions — the regular rate is then weighted average. California requires daily OT (1.5x for hours 8-12, double-time for hours beyond 12 in a day). Track hours weekly and daily to stay compliant. The calculator handles standard, multi-rate, and California rules.

California requires daily overtime: 1.5x for hours 8-12 per day, 2x (double-time) for hours beyond 12 per day, and 2x for hours beyond 8 on the seventh consecutive day. Example: 14-hour shift at $20/hour. Pay = (8 × $20) + (4 × $30) + (2 × $40) = $160 + $120 + $80 = $360 for that day. Weekly OT (40+ hours) doesn't double up with daily OT — the higher applies. Other daily-OT states: Alaska, Nevada (under specific conditions). California's rules are the most worker-favorable. The calculator handles California-specific calculations.

Non-discretionary bonuses (like attendance, productivity, or contractual incentive bonuses) must be included in the "regular rate" used for overtime calculation. Example: $20/hour, 45 hours worked, $200 attendance bonus. Total wages = (40 × $20) + (5 × $20 × 1.5) + $200 = $800 + $150 + $200 = $1,150. But for OT purposes: regular rate = ($800 + $200) / 45 = $22.22. Recalculated OT premium = 5 × ($22.22 × 0.5) = $55.56 additional. So true total = $1,150 + $55.56 = $1,205.56. Many employers miss this nuance. The calculator handles bonus inclusion correctly.

Fluctuating workweek (FWW) is a special FLSA method for salaried non-exempt employees whose hours vary week to week. Under FWW, overtime is paid at 0.5x the regular rate (not 1.5x) — because the salary already covers all hours. Example: $1,000 weekly salary, 50 hours worked. Regular rate = $1,000/50 = $20. OT premium = 10 × ($20 × 0.5) = $100. Total = $1,100. FWW requires clear mutual understanding, fixed salary regardless of hours, and salary covering at least minimum wage. It's controversial — some states ban it. Most employees aren't on FWW.

Most salaried employees are exempt from overtime if they meet the FLSA exemption tests: paid on salary basis, earning at least $684 per week ($35,568 annual, with proposed increases), and performing executive, administrative, or professional duties. If you're salaried but don't meet these tests, you're "non-exempt" and entitled to overtime. Salary level alone doesn't determine exemption — the duties test matters. Many employers misclassify employees as exempt to avoid overtime; this can lead to back-pay liability. If unsure, consult DOL guidance or an employment lawyer. State rules may give broader OT rights.

Understanding the Overtime Pay Calculator

Worked Example

Maya earns $25/hr and works 50 hours one week.

  • Regular pay: 40 × $25 = $1,000
  • OT pay: 10 × $25 × 1.5 = $375
  • Total weekly pay: $1,375

Her implied hourly rate for the week is $27.50. If she also got a $50 production bonus, the regular rate would rise to ($1,000 + $50)/40 = $26.25, and OT would be 10 × $26.25 × 1.5 = $393.75.

Comparison Table

MethodOT triggerOT rateTypical use
FLSA Standard>40 hrs/wk1.5×Most US employers
California Daily DT>8/day, >12/day, day 71.5× / 2.0×CA, AK, NV (modified)
Weighted Average>40 hrs/wk0.5× weightedMulti-rate employees
Fluctuating Workweek>40 hrs/wk0.5× implicitSalaried non-exempt

Use Cases

  • Time-card audit: verify your paycheck includes OT for last week's extra hours.
  • Wage-and-hour disputes: compute back-pay for misclassified or short-paid OT.
  • Scheduling decisions: compare cost of OT vs hiring an additional worker.
  • Multi-rate employees: bartenders/servers split between hourly and tipped rates.

Glossary

Regular rate
The hourly rate of pay used to compute OT — includes most non-discretionary bonuses, shift differentials, on-call pay.
Workweek
A fixed and recurring 168-hour period; the employer chooses the starting day/time, but it must be consistent.
Exempt vs Non-exempt
Exempt employees (executive, admin, professional, computer, outside sales) are not entitled to OT. The 2024 final rule raised the salary threshold to $1,128/wk.
Comp time
Paid time off in lieu of OT cash; legal only for public-sector employees, not private.

Sources & References

  • US Department of Labor — FLSA overtime rules and minimum-wage compliance.
  • California DLSE — California overtime FAQ — daily 8/12 rules and seventh-day premium.
  • 29 CFR Part 778 — Overtime regulations — regular-rate, weighted-average, and fluctuating workweek.
Disclaimer. This calculator provides estimates for educational purposes only. Tax laws, contribution limits, and rates change frequently. Consult a licensed financial advisor or tax professional for advice specific to your situation.