Introduction
The Payroll Hours Calculator adds up work hours from a time card and turns them into pay. Type your clock-in and clock-out times for each day, subtract breaks, and see total hours in both hours:minutes (8:30) and decimal form (8.50). Add your hourly rate and the tool shows your gross pay too.
The settings cover the parts that are easy to get wrong. Pick a pay period of one week, two weeks, semimonthly, or monthly. Choose overtime rules like daily overtime after 8 hours, weekly overtime after 40 hours, California rules with double time, or the 8/80 rule for healthcare jobs. You can round times to the nearest 5, 6, or 15 minutes, auto-deduct lunch breaks, mark PTO days, and add shift differential pay for night or weekend work. Overnight shifts that cross midnight are counted the right way.
Results show up as you type. You get a daily breakdown, weekly subtotals, a chart of regular versus overtime hours, and a step-by-step solution that shows the math behind every number. There is also a print button so you can hand in a clean time card with signature lines.
This tool is useful for hourly workers checking their paycheck, managers approving time sheets, and small business owners running payroll by hand.
How to use our Payroll Hours Calculator
Enter your work times for each day, pick your break and overtime rules, and the calculator shows your total hours in hh:mm and decimal form, plus regular, overtime, double-time, and PTO hours and your gross pay.
Pay Period: Pick how long your pay period is: 1 week, 2 weeks, semimonthly, or monthly. This sets how many day rows you get.
Week Start Day: Choose the first day of your work week. Weekly overtime resets on this day.
Show Dates on Time Card: Pick "Yes" to put real dates next to each day, or "No" to just show day names.
Date Format: Choose M/D (9/14) or D/M (14/9) for how dates look on your time card.
Pay Period Start Date: Pick the first day of the pay period. The calculator fills in the rest of the dates for you.
Clock Format: Choose 12-hour (with AM/PM) or 24-hour military time for your punches.
Time Rounding: Pick how to round clock times: none, 5, 6, or 15 minutes. Rounding happens before hours are added up.
Keyboard: Check this box if you want the Enter key to jump to the next field while you type.
Employee Info: Check this box to add name, ID, and department fields for a printed time card.
Break Deduction Mode: Choose Manual to type breaks yourself, None for no break, or Auto-Deduct to remove a set break on long days.
Break Entry Format: Enter breaks as minutes (like 30) or as clock-out and clock-in times.
Auto-Deduct Amount: Type the number of break minutes to take off each qualifying day, such as 30.
Minimum Hours to Trigger Deduction: Set how long a shift must be before the auto break is removed. Shorter shifts keep all hours.
Overtime Rule: Pick your rule: none, daily, weekly, daily and weekly, California rules, or the 8/80 healthcare rule.
Daily OT Threshold: Type the hours per day before overtime starts. Most jobs use 8.
Weekly OT Threshold: Type the hours per week before overtime starts. Most jobs use 40.
OT Rate Multiplier: Set your overtime pay rate. 1.5 means time and a half.
Double-Time Multiplier: Set the double-time rate, usually 2. Check the box to turn double-time on.
Double-Time Threshold: Type the hours in one day before double-time pay kicks in, such as 12.
Hourly Base Rate: Enter your pay per hour to see gross pay. Leave it blank or 0 to see hours only.
Shift Differential: Check this box if some days pay extra, like night or weekend shifts.
Differential Type: Choose to add dollars per hour or to multiply the base pay on flagged days.
Differential Rate: Type the extra amount, like 2.00 for $2 more per hour, or 1.10 for 110% pay.
PTO Checkbox: Tick this on any day that is paid time off. Those hours are paid but do not count toward overtime.
Start Time and End Time: Type each day's punches using digits only. Typing 915 becomes 9:15. Overnight shifts are handled for you.
AM/PM: Pick AM or PM for each punch when you use the 12-hour clock.
Break: Enter the break minutes or break clock times for that day.
Shift Diff. Checkbox: Tick this on each day that earns the extra shift pay.
Copy First Day to All: Click this to copy day one's times into every other day, then edit any day that differs.
Show Weekends, Clear All, and Print: Show or hide weekend rows, wipe all entries, or print a signed time card.
Calculate: Click Calculate to see your totals, weekly subtotals, per-day breakdown, and step-by-step math.
What Are Payroll Hours?
Payroll hours are the hours an employee actually works during a pay period. A boss adds up each shift, takes out unpaid breaks, and pays the worker for what is left. Getting this number right matters, because it decides how much money lands in a paycheck.
How Work Hours Are Counted
Each day has a start time and an end time. Subtract the start from the end to get the gross shift. Then subtract unpaid break time to get net work hours. Add every day together to get the total for the pay period.
Clock times use hours and minutes, but payroll uses decimal hours. One hour and 30 minutes is 1.5 hours, not 1.30. To switch, divide the minutes by 60. So 45 minutes is 45 ÷ 60 = 0.75 hours.
Common Pay Periods
- Weekly: 7 days, paid once a week.
- Biweekly: 14 days, paid every other week (26 checks a year).
- Semimonthly: Twice a month, often the 1st and 16th (24 checks a year).
- Monthly: Once a month, 12 checks a year.
Overtime Rules
Under federal law (the FLSA), most hourly workers earn overtime at 1.5 times their base rate for any hours over 40 in one work week. A work week is a fixed 7-day window that repeats, and it does not have to start on Monday.
Some states add their own rules:
- Daily overtime: Extra pay after 8 hours in a single day.
- California: 1.5× after 8 hours a day, 2× after 12 hours a day, plus extra pay on the 7th day worked in a row.
- 8/80 rule: Used by some hospitals and care homes. Overtime after 8 hours in a day and after 80 hours in a two-week period.
Breaks and Time Rounding
Short rest breaks, usually under 20 minutes, are normally paid. A real meal break of 30 minutes or more, where the worker is free of duty, is usually unpaid and is taken out of the total. Some employers auto-deduct a set meal break on long shifts.
Employers may also round clock punches. The classic rule rounds to the nearest 15 minutes, so punches within 7 minutes of the quarter hour move to that mark. Rounding to 6 minutes gives clean tenths of an hour. Rounding must be fair and must not always favor the employer.
Extra Pay Types
PTO is paid time off, like vacation or sick days. It is paid at the base rate, but it does not count as time worked for overtime. Shift differential is extra pay for hard-to-fill shifts, such as nights or weekends. It can be a set amount per hour, like $2.00, or a percent of the base rate.
Why Accurate Time Cards Matter
Federal law says employers must keep records of hours worked for at least two years. Wrong math can mean unpaid wages, fines, or back pay claims. Checking hours each pay period protects both the worker and the business.