Free · no signup · time card & hours
Hours Calculator
Add up your work hours in seconds. Enter clock-in and clock-out times for each day, subtract breaks, and get your daily and weekly totals — with overtime, gross pay, and a shareable, printable timesheet.
Short answer
To calculate work hours, subtract your clock-in time from your clock-out time and take off any unpaid break. 9:00 AM to 5:00 PM with a 30-minute lunch is 7.5 hours. Add each day for the weekly total; hours over 40 in a week (or over 8 in a day in states like California) are overtime at 1.5× your rate.
Total hours this week
—
Enter your clock-in and clock-out times to see your hours and pay.
More ways to calculate your hours
Weekly pay at $20/hour (federal 40-hour rule)
| Hours worked | Regular | Overtime | Gross pay |
|---|---|---|---|
| 40 hours | 40.00 h | 0.00 h | $800 |
| 45 hours | 40.00 h | 5.00 h | $950 |
| 50 hours | 40.00 h | 10.00 h | $1,100 |
Federal FLSA rule: time-and-a-half on hours over 40 in a workweek. Gross pay before taxes. California-style daily-overtime states change the split — pick your state in the calculator.
How do I calculate my work hours?
Convert each clock-in and clock-out to a 24-hour time, subtract the start from the end, and take off any unpaid break. Do that for every day and add the results for your weekly total. This calculator handles the fiddly parts for you — overnight shifts that cross midnight, payroll rounding to the nearest 5, 6, or 15 minutes, and splitting the week into regular, overtime, and double-time hours.
How we calculate this
This calculator turns clock times into paid hours the same way payroll does:
- Each shift. clock-out minus clock-in, minus your unpaid break. If the out time is earlier than the in time, the shift is treated as overnight (it crossed midnight). Punches can be rounded to the nearest 5, 6, or 15 minutes to match your employer's rule.
- The week. daily hours are added into a weekly total, then split into regular, overtime (1.5×), and double-time (2×) using the federal 40-hour rule plus your state's daily-overtime rule where one exists.
- Pay. regular hours × rate + overtime × rate × 1.5 + double-time × rate × 2 = gross pay before taxes. Leave the rate blank for an hours-only total.
Assumptions
- Non-exempt hourly employee — salaried-exempt roles earn no overtime.
- Unpaid breaks are entered and deducted; paid breaks are not entered.
- Gross pay — taxes and deductions come out after (see the paycheck calculator).
Sources
Last reviewed: July 17, 2026
Frequently asked questions
How do I calculate my work hours?+
Convert your clock-in and clock-out times to a 24-hour value, subtract the start from the end, then subtract any unpaid break. For example, 9:00 AM to 5:00 PM is 8 hours; take off a 30-minute lunch and you worked 7.5 hours. This calculator does it for you — enter your times for each day and it totals the week, in decimal hours (7.50) or hours and minutes (7:30).
How do I add up hours and minutes for payroll?+
Payroll runs on decimal hours, not hours-and-minutes, so 7 hours 30 minutes is 7.5, and 7 hours 15 minutes is 7.25 (15 ÷ 60 = 0.25). Add the decimal hours for each day to get the weekly total. This tool shows both formats and can round each punch to the nearest 5, 6, or 15 minutes to match your employer's payroll rules.
How does the calculator handle a lunch break?+
Enter the unpaid break in minutes for each day and it's subtracted from that day's total. A 30-minute lunch on an 8.5-hour shift leaves 8 paid hours. Paid breaks shouldn't be entered — only deduct time you're not paid for.
How is overtime calculated on a timesheet?+
Under federal law, overtime is 1.5× your rate for hours over 40 in a workweek. A few states — California, Alaska, Nevada, and Colorado — also pay overtime after a set number of hours in a single day (California: 1.5× after 8 hours, 2× after 12). Pick your state and the calculator splits your week into regular, overtime, and double-time hours automatically.
Can it calculate overnight shifts that cross midnight?+
Yes. If your clock-out time is earlier than your clock-in time — say 10:00 PM to 6:00 AM — the calculator assumes the shift ran overnight and counts 8 hours, not a negative number.
How do I calculate pay from my hours?+
Enter your hourly rate and the calculator multiplies your regular hours by the rate, overtime hours by 1.5× the rate, and any double-time hours by 2×, then adds them for your gross pay before taxes. Leave the rate blank if you only want the hours.
What time formats can I enter?+
Almost any — "9:00 AM", "9am", "09:00", "17:30", or "0900" all work. You can mix 12-hour and 24-hour times across the week; the calculator normalizes them.
Can I save or share my timesheet?+
Yes. Your entries are saved in the page's web address, so you can bookmark it, reopen it later, or send the link to someone — no account needed. You can also print the timesheet or download it as a CSV file for your records.
This tool estimates hours worked and gross pay before taxes and is for information, not legal or payroll advice. Overtime rules vary by state, industry, and exemption status — confirm with your employer or state labor department. To estimate take-home pay after taxes, use the paycheck calculator.