How to Estimate Your Overtime Hours Before Payday (2026)

Scheduled Hours Are Not Paid Hours

A 45-hour schedule feels like five overtime hours. It usually is not. Overtime is measured in *paid* hours worked, and a handful of ordinary things sit between the schedule and that number.

Take five nine-hour shifts with a 30-minute unpaid lunch each day. On the clock that is 45 hours; paid, it is 42.5. Your overtime is 2.5 hours, not 5. Half of all "my check is wrong" messages resolve exactly there.

What Counts and What Does Not

Counts as hours worked: short rest breaks under 20 minutes, required training, waiting time you cannot use for yourself, travel between job sites during the workday, and work you do off the clock at a supervisor's request.

Does not count: a bona fide meal period of 30 minutes or more where you are fully relieved of duty, ordinary home-to-work commuting, and paid time off you did not work.

That last one surprises people. A paid holiday or a vacation day appears on the stub as eight hours, but under federal law it does not push you toward the 40-hour threshold, because you did not work it.

The Daily Overtime Twist

Most of the country counts overtime only past 40 hours in a workweek. A few states also count it past 8 hours in a day.

Four ten-hour shifts total exactly 40 hours. Under the weekly rule alone: zero overtime. Under an 8-hour daily rule: eight overtime hours. Same schedule, very different check.

Where both rules exist, you are paid the greater of the two — never both for the same hour. Enter your daily threshold in the overtime hours estimator to see which one wins for your schedule.

Estimating the Year Honestly

To project a year of overtime hours, multiply a typical week by the weeks you actually work — not 52. Subtract vacation, unpaid leave, plant shutdowns and holiday weeks. Forty-eight is a realistic figure for most full-time schedules.

| Weekly OT hours | At 48 weeks | Value at $30 OT rate |

| --- | --- | --- |

| 2 | 96 hrs | $2,880 |

| 5 | 240 hrs | $7,200 |

| 8 | 384 hrs | $11,520 |

| 12 | 576 hrs | $17,280 |

Then Verify Against Real Punches

An estimate tells you what to expect; punch records tell you what happened. Rebuild a disputed week in the timesheet calculator, price it in the weekly overtime earnings calculator, and if the two disagree by more than rounding, you have something concrete to raise with payroll.