Work Hours Calculators
Free work hours calculators for time cards, timesheets, overtime and pay. Every one uses the same engine, so the same times give the same results on every page.
All of them run in your browser and save your hours on your own device. There is no sign-up, and nothing you type is sent to a server.
Start with the time card if you are not sure. Each page below opens the same tool with a different starting setup, such as a two week period, military time or a particular rounding rule.
Time Cards And Pay Periods
- Time Card CalculatorType start and end times for the week and see hours, overtime and pay.
- Online Punch ClockClock in and out live, with lunch tracking, on your phone.
- Time Card With LunchClock in, lunch out, lunch in and clock out, with the working shown.
- Biweekly TimesheetTwo weeks on one page, with overtime worked out for each week.
- Monthly TimesheetTwice a month or monthly periods, with overtime in the right period.
- Military Time CardEnter times as 0800 and 1730 and see 24-hour results.
Pay And Overtime
Converters And Quick Checks
Questions People Ask
Which calculator should I use?
Use the time card calculator for a normal week. Use the biweekly or monthly page when you are paid on that schedule, and the lunch page if you clock out for lunch.
Do the calculators give the same answers?
Yes. They share one engine and differ only in their starting settings, so the same times, rate and overtime rule always give the same result.
Is my data saved?
Your jobs and hours are saved in your browser on your own device. Nothing is sent to a server, so clearing your browser data removes them. Use the backup button to keep a copy.
Can I use these for payroll?
They are estimates to help you check your hours and pay. Payroll rules vary, so confirm figures with your employer or payroll team.
Updated November 1, 2026.