No clock times needed
Add Up Work Hours
This tool is for when you already know how many hours you worked each day, whether from memory, a paper schedule, or a manager's note, and just need them added up for the week. Type the hours for each day either as a decimal (7.5) or as hours and minutes (7:30), and the weekly total updates automatically in both formats. If you need to work from actual clock-in and clock-out times instead, the full work hours calculator on the homepage does that with a time-in/time-out table.
| Day | Hours worked |
|---|---|
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | |
| Sunday | |
| Weekly total | 0.00 hrs |
Enter hours either as decimal (7.5) or as hours and minutes (7:30): both work in the same field. The weekly total updates automatically.
Total this week: - (- decimal hours)
Over 40h/week by: -
How adding up work hours works
Enter a number for each day you worked. You can mix formats freely: type 7.5 for seven and a half hours, or 7:30 for seven hours and thirty minutes, whichever is easier for the way you already have the number written down. Leave a day blank if you did not work that day; it is simply skipped and does not count as zero against your total.
As you type, the weekly total row recalculates immediately, showing both a decimal total (7.50) and an hours-and-minutes total (7h 30m) added across every day you filled in. If your week goes over 40 hours, the calculator also shows how far over the federal 40-hour weekly threshold you are, which is useful for a quick sanity check on whether overtime should apply, even though this page does not calculate overtime pay itself (see the work hours calculator or payroll hours calculator for that).
A worked example
Say your manager's schedule listed straightforward daily totals rather than clock times: 8 hours Monday through Thursday, and a shorter 6.5-hour Friday.
| Day | Hours worked |
|---|---|
| Monday | 8 |
| Tuesday | 8 |
| Wednesday | 8 |
| Thursday | 8 |
| Friday | 6.5 |
| Saturday | (blank) |
| Sunday | (blank) |
That comes to 38.5 hours for the week, shown as both 38.50 decimal hours and 38h 30m. Since it is under 40, no overtime flag appears. If a Saturday shift of 3 hours were added, the total would move to 41.5 hours, and the calculator would show 1.5 hours over the 40-hour threshold.
Decimal hours vs hours and minutes: converting between them
The most common point of confusion when adding up work hours by hand is that time does not work in base 10. Fifteen minutes is a quarter of an hour, which is 0.25 in decimal, not 0.15. The table below covers the minute values that come up most often on a timesheet.
| Minutes | Decimal hours |
|---|---|
| 6 minutes | 0.10 |
| 10 minutes | 0.17 |
| 15 minutes | 0.25 |
| 20 minutes | 0.33 |
| 30 minutes | 0.50 |
| 45 minutes | 0.75 |
| 50 minutes | 0.83 |
You do not need to look this table up while using the calculator: typing 7:45 directly into a day's field is converted to 7.75 decimal hours automatically. The table is here for the times you need to do a quick mental check, or explain a number to someone else, without opening the calculator.
When to use this instead of the full timesheet calculator
This page and the homepage work hours calculator solve overlapping problems from two different directions. Use this page when your starting point is already a daily hours number: a schedule that says "8 hours Tuesday," a memory of "I worked about 6 hours," or a supervisor's shift log listing totals rather than punch times. Use the work hours calculator on the homepage when your starting point is clock times instead: an actual 8:14am punch-in and a 4:52pm punch-out, where the exact duration and any overtime/pay estimate matter more than a rounded daily figure.
If you are converting a single already-known total into a payroll-ready decimal figure with rounding rules applied, the payroll hours calculator is the more specific tool for that single-value use case.
Frequently asked questions
How do I add up my work hours for the week?
Can I enter hours as 7:30 instead of 7.5?
How do I count hours worked without clock-in and clock-out times?
What if I didn't work on a particular day?
Does this show me if I'm over 40 hours for the week?
Is this the same as a weekly hours calculator?
Need clock-in/out times instead?
The full weekly timesheet calculator is on the homepage.
Go to the work hours calculatorFree. No signup required.