# Work Hours Calculator > Add up hours worked for a day or week, with automatic overtime calculation. Per-day breakdown and configurable daily/weekly OT thresholds. URL: https://uttir.com/work-hours-calculator Categories: calculators Privacy: All entries stay in your browser. Nothing is uploaded. ## About Add clock-in and clock-out times for each day, with optional unpaid break time. The calculator sums total hours, regular hours (under the daily/weekly OT threshold), and overtime hours, with a per-day breakdown. Useful for hourly employees tracking time cards, freelancers logging billable hours, small business owners running payroll, and anyone who needs to know how many hours they worked last week. ## How to use 1. **Add rows for each shift** — Default 5-day week is set up — edit the rows for your actual days. 2. **Enter times as decimal hours** — 9 = 9:00, 9.5 = 9:30, 17.25 = 17:15. 3. **Set OT thresholds** — Default is 8 hours/day and 40 hours/week (U.S. standard). Change to match your policy. ## Examples ### Mon–Fri 9–5 with 30 min lunch Standard salaried week tracked for billing. Output: ``` 37.5 h regular, 0 h overtime ``` ### 4 days × 10 h Compressed workweek. Output: ``` 32 h regular, 8 h overtime (if daily threshold is 8) ``` ## FAQ ### How do I enter times? Use decimal hours. 9:00 = 9, 9:30 = 9.5, 17:15 = 17.25. This is the same format most modern time-tracking apps use, and you can convert clock times to decimals by dividing minutes by 60. ### Which overtime rule applies? In the U.S., the federal rule is overtime after 40 hours per week. California and a few other states also pay daily OT after 8 hours. Many employers set their own policy. Set the thresholds in the calculator to match your situation. ### Does this handle multiple jobs? Yes — add rows for each shift, with different labels. The total is the sum across all jobs. For per-job breakdowns, use the per-day view. ## Related tools - [Salary Calculator](https://uttir.com/salary-calculator) — Convert between hourly, daily, weekly, biweekly, monthly, and annual salary. Adjust hours/week and weeks/year. - [Percentage Calculator](https://uttir.com/percentage-calculator) — Three percentage tools in one: percent of a value, ratio as a percent, and percent change. - [Date Calculator](https://uttir.com/date-calculator) — Count the days between two dates, or add and subtract days from any date. - [Pomodoro Timer](https://uttir.com/pomodoro-timer) — A Pomodoro timer with 25/5/15 defaults. Focus, short break, long break, and session counter. Customizable phase lengths. --- For the full HTML page with the live tool, visit https://uttir.com/work-hours-calculator. This file is the markdown rendering at https://uttir.com/work-hours-calculator.md. See https://uttir.com/llms.txt for a site-wide summary.