Overtime Calculator

Weekly overtime, time and a half, double time, holiday pay, and two-rate weighted overtime — each with its own tab.

Total gross pay
$920.00
Regular pay
$800.00
40.00 h
Overtime pay
$120.00
4.00 h at $30.00/h
OT premium earned
$40.00
extra vs straight time

The federal rule in one paragraph

The Fair Labor Standards Act requires 1.5× pay for hours worked over 40 in a workweek — a fixed 7-day period your employer chooses. Hours over 80 in a biweekly period are not automatically overtime: two 41-hour weeks pay 2 OT hours, while a 50+32 split pays 10. Our time card calculator counts each workweek separately for exactly this reason.

State rules that add daily overtime

California is the big one: 1.5× after 8 h/day, 2× after 12 h/day, and special 7th-consecutive-day rules — see the California overtime calculator. Colorado and Nevada also have daily-overtime provisions in some situations; check your state labor department for current rules.

Common mistakes that cost money

  • Averaging two weeks (41+39 ≠ 80 even) — weekly OT can't be averaged away
  • Counting paid breaks but not worked breaks toward 40 — only worked hours count
  • Two rates: OT must use the weighted-average rate, not the lower one
  • Bonuses tied to hours worked usually raise the regular rate — and retroactively the OT rate

Frequently asked questions

How is overtime calculated?
Federal rule (FLSA): hours worked over 40 in a workweek are paid at 1.5× your regular rate. 44 hours at $20 → 40 × $20 + 4 × $30 = $920. Some states add daily overtime — California starts it after 8 hours/day.
What is time and a half?
Time and a half = your regular rate × 1.5. At $22/hour that's $33/hour for overtime hours. Use the time-and-a-half tab above: enter your rate and OT hours.
How does overtime work with two different rates in one week?
The FLSA method: compute total straight-time pay, divide by total hours to get the weighted regular rate, then pay overtime hours at 1.5× that blended rate. The calculator does this automatically when you enter two rates.
Is holiday pay mandatory at double time?
No federal law requires extra pay for holidays — that's policy or contract. If your employer pays double time on a holiday, 8h × $22 × 2 = $352; the double-time tab computes any multiplier.
What about shift differentials (nights, weekends)?
A differential is a higher rate for certain shifts. With two rates in one week, overtime goes on the weighted-average rate — see the two-rate tab, and the nurse time card for the full-week version.
Do unpaid breaks count toward overtime?
No — only hours worked count. A 9-hour shift with a 1-hour unpaid lunch is 8 worked hours. This is exactly what the break columns in the time card calculator handle.