Work Hours Calculator (2024)

Calculator Use

Use this calculator to add up your work week time sheet and calculate work hours for payroll. This online time clock uses a standard 12-hour work clock with am and pm or a 24-hour clock for military time.

Calculate total work hours with lunch and breaks. See total work hours in hours and minutes hh:mm format as well as decimal hours.

How to Calculate Work Hours

  • Enter numbers such as 1215 for 12:15 or 137 for 1:37. Using a colon is optional.
  • On a 12 hour clock you can enter a single number from 1 through 12 to indicate 1:00 through 12:00 on the hour.
  • Use the Tab key to move through the input boxes or just click on each box.
  • On a 12 hour clock use 12:00 pm for noon and 12:00 am for midnight.
  • Adjust Settings to customize your time sheet.

If you need other time card work hours options we offer a free, full-featured payroll hours calculator on our partner website Time Card Calculator .net.

About Time Card Settings

Week Begins on
Choose the day of the week your weekly pay period starts
Clock Format
Choose whether you are entering standard 12-hour work time with am and pm or 24-hour military time
Deduct Breaks
Use this function to deduct total lunch or break time each day. Enter break times in total number of minutes.
OT Overtime
The Time Card summary shows regular work hours and overtime hours. Default overtime occurs after 40 hours per week. Change 40 to another value as necessary.

Overtime is calculated here according to FLSA overtime rules in the United States and Hours of Work as part of the Canada Labour Code. Other countries and certain industries pay overtime at thresholds greater than or less than 40 hours per week.

For additional overtime rules including per day options visit our partner time card calculator at Time Card Calculator .net

Round Inputs to Nearest
Some employers round clock time as allowed by U.S. Federal Regulations. We offer 3 ways to round Start Times and End Times each day:

Round to the Nearest
• 15 minutes, also known as the 7 minute rule. Decimal hours are rounded to the nearest quarter hour with two decimal places (.00, .25, .50, .75).
• 5 minutes
• 6 minutes, also referred to as 1/10 or one-tenth of an hour. Decimal hours are rounded to the nearest tenth of an hour with two decimal places (.00, .10, .20, .30, .40, etc.)

Enter = Tab
For desktop users with a keybord, use the Tab key to advance through input fields.
By setting Enter = Tab you can advance to the next input field using the Enter key. This is convenient for users entering numbers with a keyboard keypad using one hand.
Tab or Enter through all input boxes to reach the Calculate button, or you can use a trackpad or mouse to click the Calculate button.
Save Last Inputs
Check Yes if you want the browser to remember your latest time card work hours entries. If you close your browser and do not delete cookies, your last inputs will be here when you return.
Check No to clear your time card inputs when you leave this calculator.

How to Convert hh:mm Digital Time to Decimal Hours

Employers typically use decimal hours to calculate work week pay. They take the number of hours worked in a week in decimal form, and multiply that by the rate of pay. If you worked 41:15, 41 hours and 15 minutes, how would you calculate your total pay?

You need to convert the hh:mm time of 41:15 to decimal hours.

Converting from Minutes to Decimal Hours

You worked 41 whole hours, so that will be the same in decimal hours. You only need to convert 15 minutes into decimal hours.

  1. Take your number of minutes and divide by 60. In this example your partial hour is 15 minutes:
    15/60 = 0.25
  2. Add your whole hours back in to get 41.25 hours. So 41 hours, 15 minutes equals 41.25 hours.
  3. Multiply your rate of pay by decimal hours to get your total pay before taxes.

In Reverse, Converting from Decimal Hours to Minutes

  1. Take your number of minutes and multiply by 60
  2. Say you had a decimal of 0.75 hours. Multiply:
    0.75 × 60 = 45 minutes
Work Hours Calculator (2024)

FAQs

How can I find out how many hours I have worked? ›

With the start and end times in a 24-hour and decimal format, you can simply subtract the start time from the end time to determine the total work hours. For example: As John started work at 8:00 AM (08:00) and finished at 5:15 PM (17:00), his total work hours amount to 9:15 hours (17:15 – 8:00 = 9:15).

How do you calculate effective working hours? ›

For calculating effective work hours, go for a 24-hour time slot and not a 12-hour time slot. Add twelve to the afternoon time hour and not to the morning time hour. (For example, 5 P.M. becomes 17:00 hours). As the next step, subtract the logged-in time from the logged-out time.

Is there an app to calculate work hours? ›

The DOL-Timesheet App helps track regular work hours, break time, and overtime hours.

What is the formula to calculate hour? ›

An hour is most commonly defined as a period of time equal to 60 minutes, where a minute is equal to 60 seconds, and a second has a rigorous scientific definition. There are also 24 hours in a day.

How to calculate hours in a calculator? ›

The goal is to subtract the starting time from the ending time under the correct conditions. If the times are not already in 24-hour time, convert them to 24-hour time. AM hours are the same in both 12-hour and 24-hour time. For PM hours, add 12 to the number to convert it to 24-hour time.

What is work time hour formula? ›

Important Time and Work Formula

Work Done = Time Taken × Rate of Work. Rate of Work = 1 / Time Taken. Time Taken = 1 / Rate of Work.

How do I calculate my average hours worked? ›

Add up the number of hours from each week to get your total. Divide by the total number of weeks. The resulting number is the average hours you would have worked during weeks when you took your previous leave.

Do calculators ever make mistakes? ›

While these can of course be quite helpful, they also need to be handled with care, because they make systematic mistakes (such as rounding mistakes). Thus, a good intuition of the underlying domain is still required to make good use of them.

What is calculator trick? ›

Choose a repeating 8-digit number (like 12,341,234) and divide it by 137. Divide that new number by the original 4-digit number—the answer will always be 73. Pick a number between 1 and 9 and multiply it by 9. Multiply this new number by 12,345,679 to get a repeating string of your original number, like 111,111,111.

Why is my calculator giving the wrong answer? ›

Check the batteries. Check that you are pressing the correct keys. Check it is in the correct input mode. Replace it.

What is the formula for average hours worked? ›

Add up the number of hours from each week to get your total. Divide by the total number of weeks.

How do I figure out how much I worked per hour? ›

First, determine the total number of hours worked by multiplying the hours per week by the number of weeks in a year (52). Next, divide this number from the annual salary. For example, if an employee has a salary of $50,000 and works 40 hours per week, the hourly rate is $50,000/2,080 (40 x 52) = $24.04.

How do you calculate standard hours worked? ›

Calculation of Standard Hours or Amounts

Weekly: Hours per day x 5. Biweekly: Hours per day x 10. Semi-monthly: Hours per day x 260 [52 weeks x 5 days per week] divided by 24 [two periods per month] Monthly: Hours per day x 260 [52 weeks x 5 days per week] divided by 12 [one period per month]

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