Work Hours Calculator
Enter your daily hours, days per week, and weeks to get total hours for any period — with FLSA overtime, gross pay at your rate, and a full-time-equivalent comparison.
A standard full-time year is 2,080 hours — anything over 40 in a week is overtime, paid at time-and-a-half.
2,080
standard work hours in a full-time year (8h × 5d × 52)
40 hr
weekly FLSA overtime threshold — extra hours pay 1.5×
4–6 hr
daily peak productive capacity for most knowledge workers
Getting the most from your hours
Hours, overtime, and what they're worth.
Built for contractor invoicing
Enter the hours and weeks a project spanned plus your rate to get billable gross pay instantly. Multiply nothing by hand — the calculator splits regular and overtime hours and prices them correctly so your invoice total is defensible.
Overtime is a weekly calculation
The FLSA bases overtime on the workweek, not the day. Anything over 40 hours in a fixed 7-day week is overtime at 1.5×. The calculator applies this per week and scales it across your whole period, so a consistently long week is correctly flagged and priced.
Track actual vs contracted hours
Many fixed-price contracts use estimated hours that are never checked against actuals. If you consistently work 30% more hours than quoted, your effective rate is 30% lower than you think. Running an hours-worked log reveals over-servicing before it erodes your margin.
How the Work Hours Calculator Works
Formula
Weekly Hours = Hours Per Day × Days Per Week
Total Hours = Weekly Hours × Weeks
Overtime/wk = max(0, Weekly Hours − 40)
Gross Pay = Regular Hours × Rate + Overtime Hours × Rate × 1.5
FTE = Total Hours ÷ 2,080Enter hours per day
Your net daily hours after breaks. Use decimals: 7.5 = 7h 30m.
Set days per week
How many days you work in a typical week (1–7).
Set the weeks in the period
One week, a billing period, or a full 52-week year.
Add your hourly rate
Optional — leave at 0 to skip earnings and just see hours.
Hours are a direct multiplication, but overtime makes it cleverer: the calculator applies the FLSA weekly rule, treating any time over 40 hours in a week as overtime payable at 1.5×, then scales that across your whole period.
Gross pay combines regular and overtime hours at your rate, and the full-time-equivalent (FTE) figure tells you instantly whether a schedule is part-time, full-time, or beyond — measured against the standard 2,080-hour work year.
Frequently Asked Questions
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